V6309 EMMICRO | Alldatasheet

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Technical content

Features

! Precision monitoring of 3V, 3.3V and 5V power supply voltages ! Fully specified over the temperature range of -40 to +125°C ! 140ms minimum power-on reset pulse width: RESET output for V6309 RESET output for V6319 ! 16 µA supply current ! Guaranteed RESET/RESET valid to V DD = 1V ! Power supply transient immunity ! No external components needed ! 3-pin SOT23 package ! Fully compatible with MAX809/MAX810

Applications

! Computer ! Controllers ! Intelligent instruments ! Critical µP and µC power monitoring ! Portable/battery-powered equipment Typical Operating Configuration Micro- processor VDD VDD VSS VSS RES VDD RES V6309 Fig. 1 Pin Assignment V6309/19 VDD VSS RES / RES SOT23-3L Fig. 2 Pin Description Pin Name Function

1 V SS Ground

RESET Output remains low while VDD is below the reset threshold and rises for 240ms after VDD above the reset threshold 2 for V6319 RESET RESET Output remains high while VDD is below the reset threshold and rises for 240ms after VDD above the reset threshold 3 VDD Supply voltage (+5V, +3.3V or +3.0V) Table 1 EM MICROELECTRONIC - MARIN SA

R V6309 V6319 Copyright © 2006, EM Microelectronic-Marin SA 03/06 – rev.G 2 www.emmicroelectronic.com Absolute Maximum Ratings Parameter Symbol Conditions Terminal voltage to VSS V DD -0.3V to + 6.0V Min. voltage at RESET or RESET Vmin -0.3V Maximum voltage at RESET or RESET Vmax V CC + 0.3V Input current at VDD I min 20 mA Output current at RESET or RESET Imax 20 mA Rate of rise at VDD t R 100V µs Continuous power dissipation at TA = +70°C for SOT-23 (>70°C derate by 4 mW/°C) Pmax 320 mW Operating temperature range T A -40 to +125°C Storage temperature range T ST -65°C to +150°C Table 2 Stresses above these listed maximum ratings may cause permanent damages to the device. Exposure beyond specified operating conditions may affect device reliability or cause malfunction. Handling Procedures This device has built-in prot ection against high static voltages or electric fields; howe ver, it is advised that normal precautions be taken as for any other CMOS component. Unless otherwise specified, proper operation can only occur when all terminal voltages are kept within the voltage range.

Electrical Characteristics

VDD = full range, TA = -40 to +125°C, unless otherwise specified, typical values at TA = +25°C, VDD = 5V for versions L and M, VDD = 3.3V for versions T and S, VDD = 3 V for R. (Production testing done at TA = +25°C and 85°C, over temperature limits guaranteed by design only) Parameter Symbol Test Conditions Min. Typ. Max. Unit VDD range V DD T A = 0 to +70°C 1.0 5.5 V T A = -40 to +105C 1.2 5.5 V T A = -40 to +125°C 1.6 5.5 V Supply current versions L, M I CC V DD < 5.5V 26 60 µA versions R, S, T V DD < 3.6V 16 50 µA RESET threshold 1) version L V TH T A = +25°C 4.56 4.63 4.70 V T A = -40 to +125°C 4.40 4.79 V version M T A = +25°C 4.31 4.38 4.45 V T A = -40 to +125°C 4.16 4.53 V version T T A = +25°C 3.04 3.08 3.11 V T A = -40 to +125°C 2.92 3.17 V version S T A = +25°C 2.89 2.93 2.96 V T A = -40 to +125°C 2.78 3.02 V version R T A = +25°C 2.59 2.63 2.66 V T A = -40 to +125°C 2.50 2.72 V Reset threshold temp. coefficient -200 ppm/°C VDD to reset delay 1) V DD = VTH to (VTH – 100mV) 7 µs Reset active timeout period T A = -40 to °125°C 140 330 590 ms RESET output voltage low for V6309 VOL V DD > 1.0V, ISINK = 50µA 0.3 V versions R, S, T V DD = VTH min., ISINK = 1.2mA 0.3 V versions L, M V DD = VTH min., ISINK = 3.2mA 0.4 V RESET output voltage high for V6309 versions R, S, T V OH V DD = VTH max., ISOURCE = 500µA 0.8 V DD V versions L, M V DD = VTH max., ISOURCE = 800µA V DD-1.5V V RESET output voltage low for V6319 versions R, S, T V OL V DD = VTH max., ISINK = 1.2mA 0.3 V versions L, M V DD = VTH max., ISINK = 3.2mA 0.4 V RESET output voltage high for V6319 V OH 1.8V < V DD < VTH min., ISOURCE = 150µA

0.8 VDD V

1) RESET output for V6309 , RESET output for V6319

R V6309 V6319 Copyright © 2006, EM Microelectronic-Marin SA 03/06 – rev.G 3 www.emmicroelectronic.com Supply Current vs Temperature No load, V63xxR/S/T Fig. 3 Supply Current vs Temperature No load, V63xxL/M Fig. 4 Power-Up Reset Timeout vs Temperature All versions Fig. 5 Power-Down Reset Delay vs Temperature V63xxR/S/T Fig. 6 Power-Down Reset Delay vs Temperature V63xxL/M Fig. 7 Normalized Reset Threshold vs Temperature All versions Fig. 8

R V6309 V6319 Copyright © 2006, EM Microelectronic-Marin SA 03/06 – rev.G 4 www.emmicroelectronic.com

Application Information

Negative-Going VDD Transients In addition to issuing a reset to the microprocessor during power-up, power-down and brownout conditions, the V6309/V6319 are relatively immune to short duration negative-doing V DD transients (glitches). Fig. 8 shows typical transient duration vs. Reset comparator overdrive, for which the V6309/V6319 do not generate a reset pulse. The graph was generated using a negative-going pulse applied to V DD, starting 0.5V above the actual reset threshold and ending below it by the magnitude indicated (reset comparator overdrive). The graph indicates the maximum pulse width a negative-going V DD transient can have without causing a reset pulse. As the magnitude of the transient increases (goes farther below the reset threshold), the maximum allowable pulse width decreases. Typically, for the V6309L and V6319M, a V DD transient that goes 100V below the reset threshold and lasts 20 µs or less will not cause a reset pulse. A 0.1 µF bypass capacitor mounted as close as possible to the V DD pin provides additional transient immunity. Max. Transient Duration without causing a Reset Pulse versus Reset Comparator Overdrive Fig .9 Ensuring a Valid Reset Output down to VDD = 0V When V DD falls below 1V, the V6309 RESET output no longer sinks current, it becomes an open circuit. Therefore, high-impedance CMOS logic inputs connected to RESET can drift to undetermined voltages. This presents no problem in most applications, since most µP and other circuitry is inoperative with V DD below 1V. However, in applications where RESET must be valid down to 0V, adding a pull-down resistor to RESET causes any stray leakage currents to flow to ground, holding RESET low (Fig. 10). R1's value is not critical; 100 k Ω is large enough not to load RESET and small enough to pull RESET to ground. A 100 k Ω pull-up resistor to VDD is also recommended for the V6319, if RESET is required to remain valid for VDD < 1V. RESET Valid for VDD = Ground Circuit VDD VSS RES V6309 100 kΩ Fig. 10 Interfacing to µPs with Bidirectional Reset Pins Microprocessors with bidirectional reset pins (such as the Motorola 68HC11 series) can connect to the V6309 reset output. If, for example, the V6309 RESET output is asserted high and the µP wants to pull it low, indeterminate logic levels may result. To correct this, connect a 4.7 k Ω resistor between the V6309 RESET and the µP reset I/O (Fig. 11). Buffer the V6309 RESET output to other system components. Interfacing to µPs with Bidirectional Reset I/O VDD VDD VSS VSS V6309 µP Buffer 4.7 kO Buffer RES to other system components RESRES Fig. 11 Benefits of Highly Accurate Reset Threshold Most µP supervisor ICs have reset threshold voltages between 5% and 10% below the value of nominal supply voltages. This ensures a reset will not occur within 5% of the nominal supply, but will occur when the supply is 10% below nominal. When using ICs rated at only the nominal supply ±5%, this leaves a zone of uncertainty where the supply is between 5% and 10% low, and where the reset may or may not be asserted. The V6209/T and V6319/T use highly accurate circuitry to ensure that reset is asserted close to the 5% limit, and long before the supply has declined to 10% below nominal. 4.7kΩ

R V6309 V6319 Copyright © 2006, EM Microelectronic-Marin SA 03/06 – rev.G 5 www.emmicroelectronic.com Packaging and Ordering Information Dimensions of SOT23-3L Package

Ordering Information

When ordering, please always specify the complete Part Number. Please contact EM Microelectronic for availability. Part Number Threshold Voltage Output Type Package & Delivery Form Top Marking 1) Top Marking 2) with 4 Characters Top Marking 3) with 3 Characters V6309RSP3B 2.63V AEAR ER# V6309RSP3B+ 2.63V EK## BEAR V6309SSP3B 2.93V AT## AEAS ES# V6309SSP3B+ 2.93V BT## BEAS V6309TSP3B 3.08V AEAT ET# V6309TSP3B+ 3.08V EF## BEAT V6309MSP3B 4.38V AEAM EM# V6309MSP3B+ 4.38V E9## BEAM V6309LSP3B 4.63V AEAL EL# V6309LSP3B+ 4.63V Active low push-pull SOT23-3L, Tape & Reel 3000 pces E6## BEAL V6319RSP3B 2.63V AFAR FR# V6319SSP3B 2.93V AFAS FS# V6319TSP3B 3.08V AFAT FT# V6319MSP3B 4.38V P0## AFAM FM# V6319MSP3B+ 4.38V E5## BFAM V6319LSP3B 4.63V Active high push-pull SOT23-3L, Tape & Reel 3000 pces AFAL FL# 1) Top marking is the standard from 2006. No bottom marking exists. Where ## refers to the lot number (EM internal reference only) 2) Top marking with 4 characters is standard from 2003. For le ad-free/green mold (RoHS) parts, the first letter of top marking with 4 characters begins with letter “B” instead of letter “A”. Bottom marking indicates the lot number. 3) Top marking with 3 characters is kept as information since it was used until 2002. Where # refers to the lot number (EM internal reference only) Traceability for Small Packages Due to the limited space on the package surface, the bottom ma rking contains a limited number of characters that provide only partial information for lot traceability. Full information for complete traceability is however provided on the packing labels of the product at delivery from EM. It is highly recomm ended that the customer insures full lot traceability of EM product in his final product. Dimensions are in mm L C e E H SOT23-3L SYMBOL MIN TYP MAX A0 . 8 9 1 . 0 4 1 . 1 2 A1 0.013 0.10 A2 0.95 0.97 1.00 B0 . 3 7 0 . 5 1 C 0.085 0.12 0.18 D2 . 8 0 2 . 9 5 3 . 0 4 E1 . 2 0 1 . 3 2 1 . 4 0 e0 . 9 5 e1 1.78 1.90 2.05 H2 . 1 0 2 . 4 0 2 . 6 4 L0 . 5 5 A1 A2 A D B

R V6309 V6319 Copyright © 2006, EM Microelectronic-Marin SA 03/06 – rev.G 6 www.emmicroelectronic.com Samples Part Number V6309LSP3B+ V6309MSP3B+ V6309RSP3B+ V6309SSP3B+ V6309TSP3B+ Part Number V6319TSP3B V6319MSP3B+ Sample stock is generally held on versions list above. Please contact factory for other versions not shown here. EM Microelectronic-Marin SA (EM) makes no warranty for the use of its products, other than those expressly contained in the Com pany's standard warranty which is detailed in EM's General Terms of Sale located on the Company's web site. EM assumes no responsibili ty for any errors which may appear in this documen t, reserves the right to c hange devices or specifications detailed herein at any tim e without notice, and does not make any commitment to update the informati on contained herein. No licenses to patents or other intellectu al property of EM are granted in connection with the sale of EM products, expressly or by implications. EM's products are not authorized fo r use as components in life support devices or systems.