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20000 counts manual type DMM with LCD display 100L LQFP package 3V DC power supply Fast ADC Conversion rate : 2.8 times/s for V/R modes Manual type measurement ＊ V oltage measurement : 200mV/2V/20V/200V/ 1000V ＊ Current measurement : 200u/2000u/20m/200m/20A ＊ Resistance measurement : 200/2k/20k/200k/2M/ 20M/200MΩ ＊ Capacitance measurement: 20n/200n/2u/20u/200u/2m/20m/200mF ＊ Not contact AC electric field detection ＊ Diode voltage measurement ＊ Continuity check Auto frequency measurement mode 200.00Hz ~ 200.00MHz auto range Duty Cycle measurement Hazardous AC/DC voltage (HV) indication 4 ADP modes for extension application Temperature mode with internal scale translation circuit from 0C to 0F (1oC resolution) K-type thermocouple reference table compensation (-200 ~ 1350oC range) Push functions : ＊ MAX/MIN ＊ V AHz mode ＊ PEAK Hold mode ＊ Relative mode ＊ KEY function (AC/DC or oC/oF swap function) ＊ LPF function for ACV/ACA mode ＊ Data Hold & Backlight function Band-gap reference voltage output Current mode overflow selection(10A or 20A) V oltage mode overflow selection ( DC / AC : 1010V , DC / AC : 1010/760V) LCD segment check when power on Auto power off (15/ 30min idle time ) Sleep state indicative signal output Re-power on On-chip buzzer driver Low battery detection Description ES289 is an integrated an alog-to-digital converter with 20000-count LCD, manual type DMM IC which is operated 3V DC power supply. Automatic range selection is provided for frequency measurement onl y. It could support AC/DC voltage measurement, resistance measurement, capacitance measurement, and AC/DC current measurement. Expensive and bulky mechanical range switches are not required. Other features include LPF function, data holding, maximum and minimum value holding, diode measurement, temperature measurement, continuity checking, low battery detection, auto power off, re-power on, backlight driver and buzzer driver. Application Manual type digital multimeter Manual type clamp meter
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20000 Counts Manual DMM
100L LQFP package CINT1 CAZ2 RAZ3 CREFP4 CREFN5 IVS6 ADP7 TEMP8 VR H9 OHMC310 OHMC211 OHMC112 OR 113 VR 514 VR 415 VR 316 VR 217 OVSG18 VR 119 mV IN20 OVX21 OVH22 SGND23 AC VL24 AC VH25 ADI26 ADO27 TEST528 CAP29 CAN30 R9K31 R1K32 LP FOUT33 LP C134 LP C235 LP C336 PMAX37 PMIN38 FREQ39 ALARM40 BKOUT41 CESEL42 DI SDGBP43 AP OSEL44 AS EL45 DI OV46 BUZIN47 SLEEP48 BP449 BP350 BP2 51BP1 52ANNUNC 53SEG18 54 SEG16 56SEG15 57SEG14 58SEG13 59SEG12 60SEG11 61SEG10 62SEG09 63SEG08 64SEG07 65SEG06 66SEG05 67SEG04 68SEG03 69 SEG17 55 SEG02 70SEG01 71PE AK 72VAHZ 73MMX 74KEY 75 HOLD 76REL 77OS C1 78OS C2 79BUZOUT 80FC6 81FC5 82FC4 83FC3 84FC2 85FC1 86SLACDC 87 CP 91CN 92BAT9 93V- 94V- 95V+ 96V+ 97DGND 98AGND 99AGND 100 CALEN 88SCL 89SDA 90 ES289
V 1.3 3 2018 / 08 / 03 ES289 Pin No Symbol Type Description 1 CINT O High-resolution integrator output. Connect to integrate capacitor. ( Metalized Polypropylene Film Capacitor type is recommended) 2 CAZ O High-resolution auto-zero capacitor connection. 3 RAZ O Buffer output pin in AZ and ZI phase. 4 CREFP O Positive connection for reference capacitor of A/D. 5 CREFN O Negative connection for reference capacitor of A/D. 6 IVS I Measurement input in Current mode. 7 ADP I Measurement input in ADP mode. 8 TEMP I Measurement input in Temp mode. 9 VRH O Output of band-gap voltage reference. Typically –1.22V . 10 OHMC3 O Filter capacitor connection for resistance mode. 11 OHMC2 O Filter capacitor connection for resistance mode. 12 OHMC1 O Filter capacitor connection for resistance mode. 13 OR1 O Reference resistor connection for 200.00 Ω range
14 VR5 O V oltage measurement ÷10000 attenuator(1000V)
15 VR4 O V oltage measurement ÷1000 attenuator(200.00V) 16 VR3 O V oltage measurement ÷100 attenuator(20.000V) 17 VR2 O V oltage measurement ÷10 attenuator(2.0000V)
18 OVSG O Sense low voltage for resistance/voltage measurement
19 VR1 I V oltage measurement Inpu t. Connect to an accurate 10MΩ resistor. 20 mVin I Measurement input in 200.00mV mode. 21 OVX I Sense input for resistan ce / capacitance measurement. 22 OVH O Output connection for resistance measurement. 23 SGND I Signal Ground input.
24 ACVL I
Rectified signal low input in ACV/ACA mode. Connect to negative output of external AC to DC converter.
25 ACVH I
Rectified signal high input in ACV/ACA mode. Connect to positive output of external AC to DC converter. 26 ADI I Negative input of internal AC to DC OP Amp. 27 ADO O Output of internal AC to DC OP Amp. 28 TEST5 O Buffer output of OVSG . 29 CAP O Positive auto-zero capacitor connection for capacitor measurement. 30 CAN O Negative auto-zero capacitor connection for capacitor measurement. 31 R9K O Connect to a precise 9K Ω resister for capacitor measurement. 32 R1K O Connect to a precise 1K Ω resister for capacitor measurement.
33 LPFOUT O Capacitor C1 connection for internal low-pass filter
34 LPC1 O Capacitor C1 connection for internal low-pass filter
35 LPC2 O Capacitor C2 connection for internal low-pass filter
V 1.3 4 2018 / 08 / 03 ES289 Pin Description ( Continued ) Pin No Symbol Type Description
36 LPC3 O Capacitor C3 connection for internal low-pass filter
37-38 PMAX/PMIN O Connected to Peak-hold capacitor 39 FREQ I Frequency counter input, offset V-/2 internally by the chip. 40 ALARM O HV signal detection in V oltage mode and EF mode indication output.
41 BKOUT O
Push Hold key lager than 2 sec. to enable the back light function. This pin will change from V- to V+ and lasts for 5 minutes.. Once press Hold key lager than 1 sec. again , this pin will change level back to V-. 42 CESEL I V oltage OL selection feature control pin. (1010V/610V)
43 DISDGBP I
Control warning buzzer output at HV mode. Pulled to low and buzzer is disabled.
44 APOSEL I Auto power off idle time selection
45 ASEL I Current mode OL indication for 20A current mode
46 DIOV I Pulled to V- to set the 2.8V OL level in diode mode measurement 47 BUZIN I Pulled to V- to enable the buzzer output (BUZOUT) always. 48 SLEEP O Sleep mode indicator, asserts low in SLEEP mode. 49-52 BP4-1 O LCD backplane 4 - LCD backplane1 53 NC 54-71 SEG18 - SEG01 O LCD segment line 01 – 18.
72 PEAK I Pulse to V- to enable PMAX/PMIN function
73 V AHz I Pulse to V- to enable V AHz function
74 MMX I Pulse to V- to enable MAX/MIN function. 75 KEY I Pulse to V- to change mode. 76 HOLD I Pulse to V- less than 1 second. to enable HOLD function. 77 REL I Pulse to V- to enable Relative function. 78-79 OSC1-2 O Connect to 4MHz crystal oscillator
80 BUZOUT O Outputs a 2KHz audio frequency signal for driving piezoelectric buzzer
81 FC6 I Switch 6 for function selection. 82 FC5 I Switch 5 for function selection. 83 FC4 I Switch 4 for function selection. 84 FC3 I Switch 3 for function selection. 85 FC2 I Switch 2 for function selection. 86 FC1 I Switch 1 for function selection. 87 SLACDC I Select initial DC/AC state.
88 CALEN I Pulled to V- to enter calibration mode
89 SCL I Output to EEPROM 24LC02 clock. 90 SDA I/O Input / Output from to EEPROM 24LC02 data. Open drain output.
V 1.3 5 2018 / 08 / 03 ES289 Pin Description ( Continued ) Pin No Symbol Type Description 91 CP O Positive capacitor connection for on-chip DC-DC converter. 92 CN O Negative capacitor connection for on-chip DC-DC converter.
93 BAT9 I
Low battery configuration. If 3V battery is used, connect it to DGND. The default low-battery threshold voltage is –2.3V . If 9V battery is used, the low battery enunciator is displayed when the voltage of this pin is less than VRH (-1.2V) 94 V- P Negative supply voltage. 95 V- P Negative supply voltage. 96 V+ O/P Output of on-chip DC-DC converter. 97 V+ O/P Output of on-chip DC-DC converter. 98 DGND P / G Digital ground. 99 AGND P / G Analog ground. 100 AGND P / G Analog ground.
V 1.3 6 2018 / 08 / 03 ES289 Supply V oltage (V- to AGND) -4V Analog Input V oltage V- -0.6 to V+ +0.6 V+ V+ ≥ (AGND/DGND+0.5V) AGND/DGND AGND/DGND ≥ (V- -0.5V) Digital Input V- -0.6 to DGND +0.6 Power Dissipation. Flat Package 500mW Operating Temperature -20 to 70 ℃℃ Storage Temperature -45℃ to 125 ℃ E l e c t r i c a l C h a r a c t e r i s t i c s T A=23oC Parameter Symbol Test Condition Min. Typ. Max Units Power supply V- Regulated 2.7 -3.0 3.3 V Operating supply current In DCV mode IDD Normal operation — 2.8 3.2 mA ISS In sleep mode — — 10 µA V oltage roll-over error REV 10M Ω input resistor — — ±0.1 %F.S 1 V oltage nonlinearity NLV Best case straight line CIL=MPR capacitor — — ±0.1 %F.S 1 Zero input reading 10M Ω input resistor -000 000 +000 counts Band-gap reference voltage V RH -1.26 -1.22 -1.18 V Open circuit voltage for 200Ω measurement V-=3V — -3.0 — V Open circuit voltage for other Ω measurement -1.19 -1.08 -0.97 V Low battery flag voltage V- to AGND (LBAT9 connected to GND) -2.4 -2.3 -2.2 V Internal pull-high to 0V current Between V- pin and HOLD, KEY , REL FC1-FC6, MMX — 1.2 — µA AC frequency response at 2.0000V range ±1% — 40-400 — HZ ±5% (No compensated) — 400-2000 — 3dB frequency for LPF2 active f3dB 3dB=Full (ADP) — 1 — kHz Capacitance measurement accuracy 20nF – 200uF -2.5 — 2.5 % -3 — 3 counts Capacitance measurement accuracy 2mF – 200mF -3.5 — 3.5 % 5 — 5 counts Reference voltage temperature coefficient TCRF -20 <T℃ A<70℃ — — 50 ppm/ ℃ Note: 1. Full Scale. 2. ES289 built‐in 3rd order low pass filter available for AC mode
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- Operating Modes 1.1. Semi-auto calibration scheme ES289 includes DMM meter features in single chip. DMM manufacturers need the calibration process in production. The traditional solution needs the variable resistors for calibration by manual adjustment. ES289 provide another calibration sche me and the most variab le resistors could be ignored. When ES289 is at OFF-state, pull CALEN (pin 88) to V- to active the calibration scheme after re-power on. When semi-auto calibration scheme is active, use HOLD key to increase the counts on display and use MMX key to decrease the counts on display. The adjustment step is approximate three counts. If coarse adjustment is required, push HOLD and MMX larger than one second to speed up to approximate 50 counts per sec ond. After calibration pro cess is finished, push HOLD and MMX simultaneously less than 1 second to save the digital controlled code to external EEPROM (24LC02). The semi-auto calibration scheme supports th e following 19 measurement modes. When CALEN pin is active, set the proper functi on switches or push KEY to choose the target measurement mode. When mode is selected, the LCD segment of Unit at related measurement will be blinking. Mode Default Range For CAL Remark V oltage Measurement 2.000V-1000V (DC separated) ACV 20V-1000V use the same configuration of ACV 2V range. ACV 2V range mV V oltage Measurement 200.0mV (DC/AC separated) DC Current Measurement For Multi-meter (uA/mA) 2000.0uA/200.00mA Other range use the same configuration. AC Current Measurement For Multi-meter (uA/mA) AC 2000.0uA / 200.00mA Select lower range for calibration in AC mode. Higher range calibration use the same as ACV mode. AC/DC Current Measurement For Multi-meter (A) 20A Auto 2 ranges choose one, proposed to use a large range to calibration. Capacitor Measurement 200.00nF 2 ranges separated for calibration Temperature Measurement 1000.0℃ Lower range in auto temperature measurement. ADP Measurement 20000 / 2000.0 / 200.00 / 20.000 4 ranges separated for calibration. After calibration procedure is finished, set ES289 to OFF-state and set CALEN (pin88) to DGND or kept floating to return to normal mode operation after re-power on.
V 1.3 8 2018 / 08 / 03 ES289 1.2. Voltage Measurement A re-configurable voltage divider provides a ma nual range in voltage measurement mode. The 200.00mV range is independent and manual mode. It takes input signal from mVin (pin20). The other ranges take the input signal from VR1 (pin19). The low input from pin SGND. The following table summarizes the Full-Scale ranges in each configuration. Configuration Full Scale Range Divide r Ratio Resister Connection Input Pin VRange1 200.00mV 1 - mVin V.S. SGND VRange2 2.0000V 1/10 VR2 (1.111M Ω) VR1 V.S. SGND VRange3 20.000V 1/100 VR3 (101K Ω) VR1 V.S. SGND VRange4 200.00V 1/1000 VR4 (10.01K Ω) VR1 V.S. SGND VRange5 1000.0V 1/10000 VR5 (1K Ω) VR1 V.S. SGND The ES289 support the hazardous live voltage warning. When the voltage measured exceeds the 30V , the buzzer generates 2KHz beep and ALARM (pin40) drive high output (V+ level) periodically. It can remind the user to notic e the hazardous voltage. The buzzer sound warning could be cancelled by DISDGBP (pin43). 1.2.1. Low Pass Filter (LPF) Mode For ACA/ACV Mode ES289 provides a 3 rd order low-pass filter to reduce the influence of high frequency noise. This LPF feature is available in ACV or ACA modes. Set FC5 to low in these modes, the KEY button is used to activate the LPF feature. Press KEY button for less than 1 second to select the 3dB bandwidth of LPF sequentially ( Full/ 1kHz ) and the relative LCD symbol on LCD panel will be active also. 1.2.2. OL Selection ES289 has a voltage OL sel ection feature archived by configuring the pin CESEL (pin42). In 1000V voltage mode, ES289 will show OL when th e voltage is exceed the overflow level. If CESEL is connected to DGND, ES289 will have a 1010V overflow level in voltage mode. If CESEL connected to V-, the overflow level will be set to 610V in DCV and ACV mode. The configuration of CESEL is listed below. For ACV/DCV voltage modes: CESEL V- DGND Floating DCV 610V 1010V 1010V ACV 610V 1010V 760V
V 1.3 9 2018 / 08 / 03 ES289 1.3. Current Measurement For Multi-meter ES289 has 5 manual current measurement modes for multi-meter. The following table summarizes the full-scale range of each mode. When ES289 operates in the current measurement modes for multi-meter, it takes high input from pin IVS (pin6), low input from pin SGND. Mode FC6 FC1~4 Full Scale Input Terminal 200.00uA 0 0,0,0,1 20.000mV IVS V .S. SGND 2000.0uA 1 0,0,0,1 200.00mV IVS V .S. SGND 20.000mA 0 1,0,0,0 20.000mV IVS V .S. SGND 200.00mA 1 1,0,0,0 200.00mV IVS V .S. SGND 20.000A1 1 0,0,0,0 200.00mV IVS V .S. SGND Note: 1. Connect ASEL (pin45) to V- will set maximum readings of input for 20.00A mode to 10.00A. 1.4. Resistance Measurement A re-configurable divider provides a manual Full-Scale range in resistance measurement mode. The following table summarizes the full-scale ranges and the referen ce resistors in each configuration. Configuration Full Scale Range Relative Resistor Equivalent value OR1 200.00Ω OR1 100 Ω OR2 2.0000KΩ VR5 1K Ω OR3 20.000KΩ VR4 || VR1 10K Ω OR4 200.00KΩ VR3 || VR1 100K Ω OR5 2.0000MΩ VR2 || VR1 1M Ω OR6 20.000MΩ VR1 10M Ω OR7 200.0M VR1 10M
V 1.3 10 2018 / 08 / 03 ES289 1.5. Capacitance Measurement The following table summarizes the eight ranges of capacitance measurement mode. Configuration1 Full Scale Range Relative Re sistor Measurement Period C13 20.000nF Ratio to C2 0.35 sec C22 200.00nF CAL 0.35 sec C3 2.0000uF Ratio to C2 0.35 sec C4 20.000uF Ratio to C2 0.7 sec (max) C5 200.00uF Internal matching 0.7 sec (max) C6 2.0000mF Internal matching 3.5 sec(max) C7 20.000mF Internal matching 7 sec(max) C8 200.00mF Internal matching 35 sec(max) Note: 1. In order to obtain an accurate reading, a capacitor must be discharged before measurement begins. The chip has a built-in discharge mode to automatically discharge the capacitor. In discharge mode, the main-display shows dIS.C. Discharging through the chip is quite slow. We recommend users to discharge the capacitor with some other apparatus. 2. The C2 range is calibrated in calibration scheme. 3. The C1 range residual offset could be compensated by the small capacitors near to OVH pin. 1.6. Continuity Check Continuity check shares the same configuration with 200.00 Ω manual resistance measurement mode and has buzzer output to indicate cont inuity. The buzzer generates 2KHz beep and ALARM (pin 40) drive high output (V+ level) whenever the reading is less than 30 Ω. The ES289 built in a high speed short detection circuit and the detection period could be less than 10ms. 1.7. Diode Measurement Diode measurement mode shares the same configuration with 2.0000V manual voltage measurement mode and has buzzer output to indicat e continuity. The buzzer generates a 2KHz sound and ALARM (pin 40) drive high output (V+ level) wh enever the reading is less than 30mV . The source output voltage is the same as V+ terminal. If the test circuit is open or the voltage drop between the two ports of the diode under test is larger th an 2V or 2.8V (depends on DIOV pin level), the LCD panel will show “OL”. DIOV(pin46) DGND/Floating V- OL 2.000V 2.800V
V 1.3 11 2018 / 08 / 03 ES289 1.8. Frequency Counter The time base of the frequency counter is derived from an external crystal oscillator by Tcounter = 20000,000 Fosc Where Fosc is the frequency of the crystal oscillator. Thus, the counter has a 1-second time base when a 4MHz oscillator is used. The frequency counter can select the proper range automatically or manually. Auto-range operation extends over six decades, from 200.00Hz to 20.000MHz. The following table summarizes the Full-Scale range of the frequency counter. Range Full Scale FR1 200.00Hz FR2 2.0000KHz FR3 20.000KHz FR4 200.00KHz FR5 2.0000MHz FR6 20.000MHz FR7 200.00MHz *If input frequency is less than 1.00Hz, ES289 will show 0.00 1.9. Duty Cycle Measurement When frequency mode is selected, push VA H z key to enter duty cycle measurement. The duty source frequency duty cycle is smaller than 5.0%, the UL will be shown on the LCD display. If the duty cycle is larger than 95.0%, the OL will be s hown on the LCD. When the frequency is zero, the duty cycle display will be 0.0% or “UL” shown. If VA H z key is not available, set FC mode could select the duty cycle mode also. Mode FC1~4 SLACDC / FC6 Range Input Terminal Duty cycle 0,1,1,1 0,0 5% - 95% FREQ V .S. SGND
V 1.3 12 2018 / 08 / 03 ES289 1.10. Electrical field detection mode (NVC) ES289 supports a non-contact AC voltage measuremen t, which is called elect ric field measurement also. The ADC input is configured from ADP pin vs. SGND. When no or less electric field is detected, the LCD display shows “EF”. If the electric field is detected, the strength will be showed on the LCD display by “-“ not digits type. Le vel 1(equivalent to 12.5% full scal e of ADC) is “-“ and the level 4(equivalent to 100% full scale of AD C) is “----“. Additional beeper ( BUZOUT pin) and LED alarm (ALARM pin) will be output from ES289. The freque ncy of buzzer and LED alarm depends on the strength of electric field also. The Faster beeper means the stronger electric field (AC voltage) is sensed. The input voltage is taken from ADP (pin7). Mode FC1~4 SLACDC / FC6 Full Scale Input Terminal EF 0,1,1,0 1,1 - ADP V .S. SGND 1.11. Temperature Measurement mode Temperature measurement mode takes input signal from TEMP pin (pin8). The ES289 has ºC to ºF scale translation circuit and standard K-type th ermocouple reference table is built-in. External cold-junction compensation circuit is still necessary. Mode FC1~4 SLACDC / FC6 Range Input Terminal ADP 100M EF test circuit EFin+ SGND AGND EFin‐ 100k
V 1.3 13 2018 / 08 / 03 ES289 1.12. ADP ES289 provides 4 manual range ADP meas urement modes for user define. The ADP pin(pin7) is auxiliary input terminal for ADC of ES289. The fu ll scale for ADP mode is 200.00mV. If FC5 is pulled to V-, the minus sign will not be shown on LCD segment. Mode FC1~4 SLACDC / FC6 Full Scale Input Terminal ADP0 1,0,0,1 1,1 20000 ADP V .S. SGND ADP1 0,0,1,1 1,1 2000.0 ADP V .S. SGND ADP2 0,0,1,0 1,1 200.00 ADP V .S. SGND ADP3 0,1,0,1 1,1 20.000 ADP V .S. SGND ADP4 0,1,1,1 1,0 2.0000 ADP V .S. SGND Note: If FC5 is set to V-, the minus sign will be disabled. 1.13. Auto Power Off (APO) ES289 has a default auto power off function. If the me ter is idle for more than the given idle time duration, the chip automatically turns the power off. When APOSEL (pin44) is set to V-, the idle time to trigger the auto power off f unction is set to 30 minutes. When APOSEL is floating, the idle time is 15 minutes. When APO is occurred, the state of the meter is reserved. The APO symbol on the LCD panel indicates whether the auto power off is enab led or not. In some cases, user might want to disable Auto power off. There are two ways to disable this feature as following: 1. Power on the meter when any of the push functions, except for HOLD, is pressed down. Note: Powering on the meter while pressing HOLD and lasts 2 seconds turns on all LCD segments until HOLD is pressed again. 1.14. Sleep The meter enters sleep mode after auto power off. The SLEEP pin (pin48) asserts low (V-) in the sleep mode, and asserts high (V+, not 0V) after re-power on. 1.15. Re-Power On After auto power-off, pushing any of the push function or changing the rotary mode can turn on the meter again. If the meter is re-powered on by changing the rotary mode, the stored state is cleared. If the meter is re-powered on by push functions, the chip restores the stored state and enters HOLD mode. The LCD displays the stored value.
V 1.3 14 2018 / 08 / 03 ES289 1.16. Hazardous Voltage Indication The ES289 could provide the AC/DC hazardous vol tage indication for voltage/resistor/ diode modes. Of course, the indicati on could support LCD symbol /LED /Buzzer driving simultaneously. Especially ES289 could detect th e AC voltage in DCV mode and detects the DC voltage in ACV mode. It means if not proper AC or DC voltage signal exists on the DUT when DCV or ACV measurement mode is set, the HV indication will be still active. HV indication criterion Function / Range DC voltage (typ.) AC voltage (typ.) AC mV > + 3V OL AC 4V > + 20V OL AC 40V – 1000V > + 100V > 30Vrms DC mV OL > 3Vrms (40-1kHz) DC 4V OL > 20Vrms (40-1kHz) DC 40V-1000V > + 30V > 90Vrms (40-1kHz) Freq. mode > + 40V > 30Vrms (40-1kHz) Res/Diode modes > + 10V > 10Vrms (40-1kHz) Note: If AC+DC signal is applied, the voltage criterion will be changed.
V 1.3 15 2018 / 08 / 03 ES289 1.17. Low Battery Voltage Detection ES289 provides a voltage detection input (pin 93: BAT9) for non-3V battery application. When BAT9 is less than VRH terminal voltage, the LCD segment of low battery will appear. When the Low battery status lasts for 10 seconds, the LCD segment of low battery will be blinking. When the symbol is blinking for 20 seconds, the operati on of meter will be inhibited and LCD panel will show “ Lo.bt”. In this case, it is suggested to replace a new battery immediately. After “Lo.bt” appears and lasts for 60 seconds, ES289 will enter to auto power off mode. Low battery test (9V) 680K 270K BAT TER Y LBAT9 AGND0.1u
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- Measurement Mode Switching Measurement mode depends on the logic level of SLACDC, FC1, FC2, FC3, FC4, FC5, FC6 and KEY selection. When FC5/FC6 is logic high (kept floating), the measurement mode list is shown below: SLACDC FC1 FC2 FC3 FC4 Mode KEY selection 0 1 0 1 1 DC 200.00V DCV ↔ ACV 0 1 1 0 1 DC 20.000V DCV ↔ ACV 0 1 1 1 1 DC 200.00mV DCmV ↔ ACmV 0 1 1 1 0 DC 2.0000V DCV ↔ ACV 0 0 0 0 0 DC 20.00A 2 DCA ↔ ACA 0 1 1 0 0 20.000 M ---- 0 1 0 0 0 DC 200.00mA 2 DCmA ↔ ACmA 0 1 0 1 0 2.0000 M ---- 0 1 0 0 1 200.00 k ---- 0 0 0 0 1 DC 2000.0 uA 2 DCuA ↔ ACuA 0 0 1 1 1 DC 1000.0V DCV ↔ ACV 0 0 0 1 0 Frequency mode (AUTO) ---- 0 0 1 1 0 2.0000 k ---- 0 0 1 0 0 1350 ℃ ↔ ℃℉ 0 0 1 0 1 20.000 k ---- 1 1 0 1 1 AC 200.00V ACV ↔ DCV 1 1 1 0 1 AC 20.000V ACV ↔ DCV 1 1 1 1 1 AC 200.00mV ACmV ↔ DCmV 1 1 1 1 0 AC 2.0000V ACV ↔ DCV 1 0 0 0 0 AC 20.00A 2 ACA ↔ DCA 1 1 1 0 0 Continuity mode Continuity ↔ Diode 1 1 0 0 0 AC 200.00mA 2 ACmA ↔ DCmA 1 1 0 1 0 Diode mode Diode ↔ Continuity 1 1 0 0 1 ADP0 (+ 20000)1 ---- 1 0 0 0 1 AC 2000.0 uA 2 ACuA ↔ DCuA 1 0 1 1 1 AC 1000.0V ACV ↔ DCV 1 0 1 1 0 EF mode ---- 1 0 1 0 0 2462 ℉ ℉↔℃ Note: 1. When FC5 is high, the ADP0, ADP1, ADP2, ADP3 and ADP4 modes can display minus sign. 2. These modes could be designed for multimeter current modes, please refer to section 1.2.
V 1.3 17 2018 / 08 / 03 ES289 Measurement Mode Switching (Continued) Measurement mode depends on the logic level of SLACDC, FC1, FC2, FC3, FC4, FC5 and KEY selection. When FC5 is low (pulled to V-), the KEY function is disabled in most modes. The measurement mode list is shown below: (Note: FC6 is high) SLACDC FC1 FC2 FC3 FC4 Mode KEY selection & Remaks 0 1 0 1 1 DC 200.00V ---- 0 1 1 0 1 DC 20.000V ---- 0 1 1 1 1 DC 200.00mV ---- 0 1 1 1 0 DC 2.0000V ---- 0 0 0 0 0 DC 20.00A 2 ---- 0 1 1 0 0 20.000 M ---- 0 1 0 0 0 DC 200.00mA 2 ---- 0 1 0 1 0 2.0000 M ---- 0 1 0 0 1 200.00 k ---- 0 0 0 0 1 DC 2000.0 uA 2 ---- 0 0 1 1 1 DC 1000V ---- 0 0 0 1 0 Frequency mode (AUTO) ---- 0 0 1 1 0 2.0000 k ---- 0 0 1 0 0 1350 ℃ ---- 0 0 1 0 1 20.000 k ---- 1 1 0 1 1 AC 200.00V LPF active 1 1 1 0 1 AC 20.000V LPF active 1 1 1 1 1 AC 200.00mV LPF active 1 1 1 1 0 AC 2.0000V LPF active 1 0 0 0 0 AC 20.00A 2 LPF active 1 1 1 0 0 Continuity mode ---- 1 1 0 0 0 AC 200.00mA 2 LPF active 1 1 0 1 0 Diode mode ---- 1 1 0 0 1 ADP0 (20000) 1 ---- 1 0 0 1 1 ADP1 (2000.0) 1 ---- 1 0 0 0 1 AC 2000.0uA 2 LPF active 1 0 1 1 1 AC 1000V ---- 1 0 0 1 0 ADP2 (200.00) 1 ---- 1 0 1 1 0 EF mode ---- 1 0 1 0 0 2462 ℉ ---- 1 0 1 0 1 ADP3 (20.000) 1 ---- Note: 1. When FC5 is low, the ADP0, ADP1, ADP2, ADP3 and ADP4 modes can’t display minus sign. 2. These modes could be designed for multi-meter current modes, please refer to section 1.2.
V 1.3 18 2018 / 08 / 03 ES289 Measurement Mode Switching (Continued) Measurement mode depends on the logic level of SLACDC, FC1, FC2, FC3, FC4, FC5 and KEY selection. When FC6 is low (pulled to V-), the capacitance measurement and extra current measurement mode lists are shown below: SLACDC FC1 FC2 FC3 FC4 FC5 Mode KEY selection & Remaks X 0 0 1 1 X 20.000 nF ---- X 0 1 1 0 X 200.00 nF ---- X 0 1 0 1 X 2.0000 uF ---- X 1 0 0 1 X 20.000 uF ---- X 1 0 1 0 X 200.00 uF ---- X 1 1 0 0 X 2.0000 mF ---- X 0 1 0 0 X 20.000 mF ---- X 0 0 1 0 X 200.00 mF ---- X 1 1 1 1 X Cap (AUTO) ---- X 1 1 1 0 X 200.00 M ---- 0 0 0 0 0 1 DC 2.0000A 1 DCA ↔ACA 0 1 0 0 0 1 DC 20.000 mA 1 DCmA ↔ ACmA 0 0 0 0 1 1 DC 200.00 uA 1 DCuA ↔ ACuA 1 0 0 0 0 1 AC 2.0000A 1 ACA ↔DCA 1 1 0 0 0 1 AC 20.000 mA 12 ACmA ↔ DCmA 1 0 0 0 1 1 AC 200.00 uA 12 ACuA ↔ DCuA 0 0 0 0 0 0 DC 2.0000A 1 ---- 0 1 0 0 0 0 DC 20.000 mA 12 ---- 0 0 0 0 1 0 DC 200.00 uA 12 ---- 1 0 0 0 0 0 AC 2.0000A 1 LPF active 1 1 0 0 0 0 AC 20.000 mA 12 LPF active 1 0 0 0 1 0 AC 200.00 uA 12 LPF active 0 0 1 1 1 X Duty cycle ---- 1 0 1 1 1 1 ADP4 (+ 2.0000)1 1 0 1 1 1 0 ADP4 (2.0000) 1 1 1 0 1 1 X LED 3.5V OL Note: 1. These modes could be designed for multi-meter current modes, please refer to section 1.2.
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- Push Function All the enabled push functions will be reset wh en the measurement mode is changed when FC1-FC5 modes are changed. The following table lis ts the available function versus every measurement mode. Note: 1. Push KEY to change AC/DC mode or oC/oF when FC5=1 or enable LPF of ACV/ACA mode when FC5=0. 2. Push HOLD key and last for 2 seconds will active the back light output driver (BKOUT). MMX KEY 1 V AHz HOLD/BKLIT 2 REL Voltage mode O O O O O mV mode O O O O O Current Mode for Multimeter O O O O O Resistance O X X O O Continuity O O X O O Diode mode O O X O O Frequency X X O O X Capacitance O X X O O Temperature O O X O O EF Mode X X X O X ADP mode O X X O O
V 1.3 20 2018 / 08 / 03 ES289 3.1. HOLD and BKOUT output Feature HOLD mode makes the meter stop updating the LCD pane l. This mode can be nested in most of the special modes. Enabling HOLD function in au tomatic mode makes the meter switch to manual mode, but the range remains the same. ES289 provi des a backlight output fe ature. To activate backlight output feature, press down the HOLD key and last for 2 seconds. The meter will enable output from BKOUT. 3.2. V AHz function When voltage or current measurement mode is selected, the V AHz function is available. Push VA H z key to select this frequency measurement mode for V/A signals. The frequency is measured by auto ranging. The maximum available frequency range is 200KHz. The sensitiv ity of signal input is 5% full scale of signal (10mVp) in voltage or current mode typically. Configuration RANGE FR1 200.00Hz FR2 20.000KHz FR3 200.00KHz Note: Minimum available input frequency is 20Hz. 3.3. KEY See Section “Measurement Mode Switching” for the function of this pin.
V 1.3 21 2018 / 08 / 03 ES289 (Auto/Manual) 〝REL〞active. The relative value 〝REL〞and〝H〞active. Hold the relative value push HOLD push REL push REL push HOLD 3.4. Max/Min + HOLD The meter displays the maximum or minimum value of the input in Max/Min mode. When MMX key is pressed for the first time, the meter disp lays the maximum value. The meter displays the minimum value, when it is pressed again. When MMX key is pressed for the third time, the meter displays current value. The mete r returns to normal operation if MMX is pressed and held for longer than one second. Pressing HOLD in Max/Min mode makes the me ter stop updating the maximum or the minimum value. 3.5. REL + HOLD In REL mode, the LCD panel displays DN+K - DN, where N = 1, 2, 3, … , D N is the last value before REL key is pushed, and DN+K is the current value. The meter returns to normal operation if REL is pressed again. Pressing HOLD in REL mode makes the meter stop updating the LCD panel. Note: 1. It’s possible that relative value (DN+K - DN) exceeds 20000 or -20000 counts. The LCD shows OL in REL mode only if DN or DN+K is more than 20000 counts. Original state (Automatic/manual) “MAX” active max value “MIN” active min value hold max value. hold min value. Push HOLD Push HOLD 1 push<1 sec 1 push<1 sec 1 push>1 sec 1 push>1 sec 1 push<1 sec
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- Miscellaneous The conditions, which the meter turns on the buzzer, include: (1) Changing measurement mode generates one beep. (2) Pressing any of the push functions genera tes one beep, if the function is valid. (3) Power on and re-power on generate one beep. (4) Input overflow in voltage and current mode generates one beep every 0.3 seconds (or 3.33 beeps per second.) (5) Hazard voltage indication is ac tive generates one beep per second and could be disabled by DISDGBP pin. (6) Continuity(diode) check generates a continuous 2KHz beep whenever the measurement is less then 30Ω(30mV) (7) Auto power off generates a 2KHz beep which lasts for 1.5 seconds. The following figures show the output waveform from the BUZOUT pin. 0.5 mS (a) Continuous 2KHz beep 0.3 sec 0.15 sec (b) 3.33 beep/sec
V 1.3 23 2018 / 08 / 03 ES289 4.1. LCD Panel S01 S02 S03 S04 S05 S06 S07 S08 S09 S10 BP1 AUTO LPF 5BC HOLD 4B REL MAX MIN 2A 2B BP2 APO AC DP4 4A 4G 3F 3A 3B 2F 2G BP3 DANGR MINUS 4F 4C 3E 3G 3C 2E 2C BP4 LBAT DC 4E 4D DP3 3D DP2 2D DP1 S11 S12 S13 S14 S15 S16 S17 S18 BP1 BUZZER 1A DIODE n M μ2 ADP0 % BP2 1F 1B ℃ μ 1 K m2 ADP1 PMAX BP3 1E 1G ℉ m1 Ω V ADP2 PMIN BP4 1D 1C F Hz A ADP3 ADP4 LCD Backplane Waveform BP1 BP2 BP3 BP4 V‐ +3.1 V‐ +3.1 V‐ +3.1 V‐ +3.1
V 1.3 24 2018 / 08 / 03 ES289 4.2. LCD Display On Condition LCD Annunciator Condition V In voltage measurement mode, and diode measurement mode. A In current measurement mode. Ω In resistance measurement mode, and continuity mode. F In capacitance measurement mode. m1 In capacitor measurement mode and the fu ll scale range is in the order of mF. µ1 In capacitor measurement mode and the fu ll scale range is in the order of uF. n In capacitor measurement mode and the fu ll scale range is in the order of nF. In continuity check mode. In diode mode. Hz In frequency mode. % In duty cycle mode ADPn When ADP0-4 mode is active. DC In DC voltage or DC current mode. AC In AC voltage or AC current mode. AUTO When automatic full scale range selec tion is enabled. (Hz or Cap Auto mode) HOLD When HOLD function is enabled. LPF When low pass filter mode is enabled MAX When MAX function is enabled. MIN When MIN function is enabled. REL When Relative function is enabled PMAX When PEAK MAX function is enabled. PMIN When PEAK MIN function is enabled. m2 In voltage or current measurement mode and the full scale range is in the order of 10 -3. µ2 In current measurement mode and the fu ll scale range id in the order of uA. M In measurement mode and the full scale range is in the order of M Ω or MHz K In measurement mode and the full scale range is in the order of K Ω or KHz ℃ In temperature measurement mode and when the unit is ℃. ℉ In temperature measurement mode and when the unit is ℉. DANGR When the reading is exceeding default hazardous live voltage or OL in DCV or ACV , or not proper voltage applied on Res/Cap/Diode/Hz modes, the HV warning symbol will be displayed. APO When auto power off function is enabled. LBAT When battery voltage is too low
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4.3 Operating Timing
ES289 incorporates a dual slope ADC with four phases: ZI, AZ, INT and DINT. The timing of each phase is listed below. (1) V oltage / Diode /ADP Phase High resolution ZI 10ms AZ 30ms INT 100ms DINT 210ms (2) Current mode for multi-meter Phase DC / AC DC Lower Range ZI 10ms 10ms AZ 30ms 30ms INT 100ms 1000ms DINT 210ms 210ms (3) Continuity / Ohm measurement: Phase Time Time (200M) ZI 10ms 10ms AZ 30ms 20ms INT 100ms 15ms DINT 210ms 315ms (4) Frequency : Every conversion takes 1.05 second. (500ms for 200Hz range) (5) Temperature measurement: Phase Time ZI 20ms AZ 20ms INT 500ms DINT 360ms Note: 1. In the frequency measurement with auto mode, if the range is changed, the internal clock rate will increase ten times and the new measurement cycle becomes 1/10 times of the original cycle until the range is stable.
V 1.3 26 2018 / 08 / 03 ES289 Application Circuit 1. AV G C i rc u i t DD CC BB AA Title: Size: Date: Revision: Sheet: of Time: 2018/5/25下午 03:10:36 B ES289 ( A VG ) DemoBoard Schematic V1.0 mVin SW11 FC5 SW13 FC4 SW6 SLACDC FC4 FC5 SLACDC V - SW15 FC3 SW17 FC2 SW18 FC1 FC1 FC2 FC3 SW9 MMX MMX V - SW12 KEY SW14 HOLD HOLD KEY H4B VIN VIN OVX OVH H3A COM + C6 10uF + C3 10uF ZR2 7.2V V + C5 0.1uF 0.1uF ZR1 5.6V SW2 POWER SW V - Bat- Bat+ BKOUT R3 100K V - BKOUT R5200 HV R2 100K V - ALARM R4200 2N3904 2N3904 SW8 FC6 FC6 TEMP SW16 REL REL R29 100K C15 10nF Close to IC C20 220pF Close to IC C23 68pF R36 150K R38 200 C24 2.2uFR41 200 Q122N2222 Q72N2222 R32 100K Q132N2222 Q82N2222 R33 2.2K PTC R39 2.2K PTC SW20 mVIN Q112N2222 Q62N2222 SW21 OVX SW22 OVH SW23 FREQ R24 7.5K V + Q4 2N3904 R27 15K R19 47K R22 390 TEMPin VR1100 R28 10M R26300 DIP 2N3904 Close to Input TEMP_COM R30 SW4 TEMP TEMP_COM SGND For Temperature For DMM COM SW19 TEMP 2N2222 BZ1 BUZZER V - R1 10K BUZOUT 2N3906 R35 9K R34 1K R6 10K SW5 PEAK PEAK SW7 V AHZ VA H Z Q92N2222 Q142N2222 R31 2.5M x 4 Q102N3904 V - LM385 A0 1 A1 2 A2 3 GND4SDA5 SCL6 WP7 VCC8 24A02 V - R15 100K CALEN SDA SCL R13 100K R16 100K R17 100K C11 4.7uF DISDGBP BUZIN CINT1 CAZ 2 RAZ 3 CREFP4 CREFN5 IVS 6 ADP 7 TEMP8 VRH9 OHMC310 OHMC211 OHMC112 OR1 13 VR5 14 VR4 15 VR3 16 VR2 17 OVSG18 VR1 19 mVIN20 OVX 21 OVH 22 SGND23 ACVL24 ACVH25 ADI26 ADO27 TEST528 CAP29 CAN30 R9K31 R1K32 LPFOUT33 LPC134 LPC235 LPC336 PMAX37 PMIN38 FREQ39 ALARM40 BKOUT41 CESEL42 DISDGBP43 APOSEL44 ASEL45 DIOV46 BUZIN47 SLEEP48 BP449 BP350 BP251 BP152 ANNUNC53 SEG1854 SEG1656 SEG1557 SEG1458 SEG1359 SEG1260 SEG1161 SEG1062 SEG0963 SEG0864 SEG0765 SEG0666 SEG0567 SEG0468 SEG0369 SEG1755 SEG0270 SEG0171 PEAK72 V AHZ73 MMX74 KEY75 HOLD 76REL 77OSC1 78OSC2 79BUZOUT 80FC6 81FC5 82FC4 83FC3 84FC2 85FC1 86SLACDC 87 CP 91CN 92BAT9 93V- 94V- 95V+ 96V+ 97DGND 98AGND 99AGND 100 CALEN 88SCL 89SDA 90 U3 ES289 APOSEL BUZOUT BKOUT ASEL SEG12 SEG13 SEG14 SEG08 SEG09 SEG10 SEG11 SEG04 SEG05 SEG06 SEG07 SEG03 SEG02 SEG01 BP4 BP3 BP2 BP1 CESEL ALARM FREQ 4MHz KEY ANNUNC FC5 HOLD FC2 FC3 FC4 FC1 MMX IVS SLACDC ADP V - V + LBAT9 470nF C9 220nF C8 220nF C10 220nF C14 1uF C13 22nF C12 22nF SEG15 FC6 R1K R9K C18 470nF DIOV SLEEP ACVL ACVH ADO ADI TEST5 TEMP SEG16 REL C19 2.2nF C16300pF C171nF PEAK VA H Z SEG17 SEG18 C21 10nF C22 10nF R37 100 R40 100 R18 100 R20 1K R21 10.01K R23 101K R25 1.111M OVSG CALEN SCL SDA SGND SW10 OVSG Precision Resistors Regulator DC 3.0V D3D4 SW1 uA SW3 uA R10 R12 0.99 R14 0.01 H1A COM H2A COM Fuse1 Fuse Fuse2 Fuse IOA01 IOB72 IOB63 VDD4 IOB55 IOB46 IOB37IOB28 IOB19 IOB010 VSS11 IOA312 IOA213 IOA114 FM8PE531M CALEN 10K IOB1 IOB2 IOA3 IOA2 IOA1 IOB6 IOB7 IOA0 IOB3 C1 10nF MMX HOLD ANNUNC R8 10K R9 10K R11 1M R43 7.5K R44 7.5K TEST5 ADI ACVH ADO ACVL +C26 1uF+C27 1uF C28 0.1uF R46 56K R45 56K D6 1N4148 1N4148 C25 4.7uF R42 6.2K SW24 CALEN CALEN For Calibration Mode
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- RMS Circuit DD CC BB AA Title: Size: Date: Revision: Sheet: of Time: 2018/5/25下午 03:10:59 B ES289 ( ES736 ) DemoBoard Schematic V1.0 mVin SW11 FC5 SW13 FC4 SW6 SLACDC FC4 FC5 SLACDC V - SW15 FC3 SW17 FC2 SW18 FC1 FC1 FC2 FC3 SW9 MMX MMX V - SW12 KEY SW14 HOLD HOLD KEY H4B VIN VIN OVX OVH H3A COM + C6 10uF + C3 10uF ZR2 7.2V V + C5 0.1uF 0.1uF ZR1 5.6V SW2 POWER SW V - Bat- Bat+ BKOUT R3 100K V - BKOUT R5200 HV R2 100K V - ALARM R4200 2N3904 2N3904 SW8 FC6 FC6 TEMP SW16 REL REL R29 100K C15 10nF Close to IC C20 220pF Close to IC C23 68pF R36 150K R38 200 C24 2.2uFR41 200 Q122N2222 Q72N2222 R32 100K Q132N2222 Q82N2222 R33 2.2K PTC R39 2.2K PTC SW20 mVIN Q112N2222 Q62N2222 SW21 OVX SW22 OVH SW23 FREQ R24 7.5K V + Q4 2N3904 R27 15K R19 47K R22 390 TEMPin VR1100 R28 10M R26300 DIP 2N3904 Close to Input TEMP_COM R30 SW4 TEMP TEMP_COM SGND For Temperature For DMM COM SW19 TEMP 2N2222 BZ1 BUZZER V - R1 10K BUZOUT 2N3906 R35 9K R34 1K R6 10K SW5 PEAK PEAK SW7 V AHZ VA H Z Q92N2222 Q142N2222 R31 2.5M x 4 Q102N3904 V - LM385 A0 1 A1 2 A2 3 GND4SDA5 SCL6 WP7 VCC8 24A02 V - R15 100K CALEN SDA SCL R13 100K R16 100K R17 100K C11 4.7uF DISDGBP BUZIN CINT1 CAZ 2 RAZ 3 CREFP4 CREFN5 IVS 6 ADP 7 TEMP8 VRH9 OHMC310 OHMC211 OHMC112 OR1 13 VR5 14 VR4 15 VR3 16 VR2 17 OVSG18 VR1 19 mVIN20 OVX 21 OVH 22 SGND23 ACVL24 ACVH25 ADI26 ADO27 TEST528 CAP29 CAN30 R9K31 R1K32 LPFOUT33 LPC134 LPC235 LPC336 PMAX37 PMIN38 FREQ39 ALARM40 BKOUT41 CESEL42 DISDGBP43 APOSEL44 ASEL45 DIOV46 BUZIN47 SLEEP48 BP449 BP350 BP251 BP152 ANNUNC53 SEG1854 SEG1656 SEG1557 SEG1458 SEG1359 SEG1260 SEG1161 SEG1062 SEG0963 SEG0864 SEG0765 SEG0666 SEG0567 SEG0468 SEG0369 SEG1755 SEG0270 SEG0171 PEAK72 V AHZ73 MMX74 KEY75 HOLD 76REL 77OSC1 78OSC2 79BUZOUT 80FC6 81FC5 82FC4 83FC3 84FC2 85FC1 86SLACDC 87 CP 91CN 92BAT9 93V- 94V- 95V+ 96V+ 97DGND 98AGND 99AGND 100 CALEN 88SCL 89SDA 90 U3 ES289 APOSEL BUZOUT BKOUT ASEL SEG12 SEG13 SEG14 SEG08 SEG09 SEG10 SEG11 SEG04 SEG05 SEG06 SEG07 SEG03 SEG02 SEG01 BP4 BP3 BP2 BP1 CESEL ALARM FREQ 4MHz KEY ANNUNC FC5 HOLD FC2 FC3 FC4 FC1 MMX IVS SLACDC ADP V - V + LBAT9 470nF C9 220nF C8 220nF C10 220nF C14 1uF C13 22nF C12 22nF SEG15 FC6 R1K R9K C18 470nF DIOV SLEEP ACVL ACVH ADO ADI TEST5 TEMP SEG16 REL C19 2.2nF C16300pF C171nF PEAK VA H Z SEG17 SEG18 C21 10nF C22 10nF R37 100 R40 100 R18 100 R20 1K R21 10.01K R23 101K R25 1.111M OVSG CALEN SCL SDA SGND SW10 OVSG Precision Resistors Regulator DC 3.0V SW1 uA SW3 uA R10 R12 0.99 R14 0.01 H1A COM H2A COM Fuse1 Fuse Fuse2 Fuse IOA01 IOB72 IOB63 VDD4 IOB55 IOB46 IOB37IOB28 IOB19 IOB010 VSS11 IOA312 IOA213 IOA114 FM8PE531M CALEN 10K IOB1 IOB2 IOA3 IOA2 IOA1 IOB6 IOB7 IOA0 IOB3 C1 10nF MMX HOLD ANNUNC R8 10K R9 10K R11 1M D3D4 ACVH ADI_TRMS V + R45 3.9M VR2 50K V + C28 10uF +C29 10uF V + VS - R42 470K C26 1uF Cc 1 Vin 2 Cf 3 - VS 4Cav5 Output6 + VS7 COM8 ES736 + C27 22uF VS - SLEEP Q15 2N3904 R46 100K VS - V - + C25 10uF R44 240K R43 240K SW24 CALEN CALEN For Calibration Mode
V 1.3 28 2018 / 08 / 03 ES289 Package Information 100L LQFP Outline drawing Dimension parameters