G696_06 GMT | Alldatasheet
Document overview
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Technical content
Features
Precision Monitoring of +3V, +3.3V, and +5V Power-Supply Voltages Fully Specified Over Temperature Available in Three Output Configurations Push-Pull RESET Output (G696L) Push-Pull RESET Output (G696H) Open-Drain RESET Output (G697L) Externally Programmable Time Delay Generator 14µA Supply Current Guaranteed Reset Valid to VCC = 0.8V Power Supply Transient Immunity 5 pin SOT-23-5 or TSOT-23-5 Packages 2% Threshold Accuracy
Applications
Computers Controllers Intelligent Instruments Critical µP and µC Power Monitoring Portable / Battery-Powered Equipment Automotive General Description The G696/G697 are microprocessor ( µP) supervisory circuits used to monitor the power supplies in µP and digital systems. They provide excellent circuit reliability and low cost and adjustments when used with +5V, +3.3V, +3.0V- powered circuits. These circuits perform a single function: they assert a reset signal whenever the V CC supply voltage declines below a preset threshold, with hysteresis keeping it asserted for time delay determined by externally pro- grammable time delay generator after V CC has risen above the reset threshold. Reset thresholds suitable for operation with a variety of supply voltages are available. The G697L has an open-drain output stage, while the G696 have push-pull outputs. The G697L ’s open-drain RESET output requires a pull-up resistor that can be connected to a voltage higher than V CC. The G696L have an active-low RESET output, while the G696H has an active-high RESET output. The reset com- parator is designed to ignore fast transients on V CC, and the outputs are guaranteed to be in the correct logic state for V CC down to 0.8V. Low supply current makes the G696/G697 ideal for use in portable equipment. The G696/G697 are avail- able in 5-pin SOT23-5 or TSOT-23-5 packages. Pin Configuration Typical Application Circuit RESET (RESET) VCC SOT-23-5/TSOT-23-5 G696/G697 NC43GND CD ()is for G696H *G697 ONLY RESET INPUT GND µP VCC RESET (RESET) GND G696/G697 VCC CD VCC CD Rpull-up* RESET (RESET) VCC SOT-23-5/TSOT-23-5 G696/G697 NC43GND CD ()is for G696H *G697 ONLY RESET INPUT GND µP VCC RESET (RESET) GND G696/G697 VCC CD VCC CD Rpull-up*
Ver: 1.8 May 10, 2006 TEL: 886-3-5788833 http://www.gmt.com.tw G696/G697Global Mixed-mode Technology Inc.
Ordering Information
(Pb free) TEMP. RANGE PACKAGE G696HxxxT1U G696HxxxT1Uf -40 °C ~ +105°C SOT-23-5 G696LxxxT1U G696LxxxT1Uf -40 °C ~ +105°C SOT-23-5 G697LxxxT1U G697LxxxT1Uf -40 °C ~ +105°C SOT-23-5 G696HxxxTOU G696HxxxTOUf -40 °C ~ +105°C TSOT-23-5 G696LxxxTOU G696LxxxTOUf -40 °C ~ +105°C TSOT-23-5 G697LxxxTOU G697LxxxTOUf -40 °C ~ +105°C TSOT-23-5 Note: T1: SOT-23-5 TO: TSOT-23-5 U: Tape & Reel * xxx specifies the threshold voltage. e.g. 263 denotes the 2.64V threshold voltage. Selector Guide ORDER NUMBER ORDER NUMBER (Pb free) RESET THRESHOLD (V) O UTPUT TYPE TOP MARK G697L463T1U G697L463T1Uf 4.60 Open-DrainRESET 697Gx G697L438T1U G697L438T1Uf 4.32 Open-DrainRESET 697Fx G697L400T1U G697L400T1Uf 3.96 Open-DrainRESET 697Ex G697L330T1U G697L330T1Uf 3.30 Open-DrainRESET 697Dx G697L308T1U G697L308T1Uf 3.10 Open-DrainRESET 697Cx G697L293T1U G697L293T1Uf 2.91 Open-DrainRESET 697Bx G697L263T1U G697L263T1Uf 2.64 Open-Drain RESET 697Ax G697L250T1U G697L250T1Uf 2.50 Open-Drain RESET 697Hx G696H463T1U G696H463T1Uf 4.60 Push-Pull RESET 696Lx G696H438T1U G696H438T1Uf 4.32 Push-Pull RESET 696Kx G696H400T1U G696H400T1Uf 3.96 Push-Pull RESET 696Jx G696H330T1U G696H330T1Uf 3.30 Push-Pull RESET 696Nx G696H308T1U G696H308T1Uf 3.10 Push-Pull RESET 696Ix G696H293T1U G696H293T1Uf 2.91 Push-Pull RESET 696Hx G696H263T1U G696H263T1Uf 2.64 Push-Pull RESET 696Gx G696H250T1U G696H250T1Uf 2.50 Push-Pull RESET 696Qx G696L463T1U G696L463T1Uf 4.60 Push-Pull RESET 696Fx G696L438T1U G696L438T1Uf 4.32 Push-Pull RESET 696Ex G696L400T1U G696L400T1Uf 3.96 Push-Pull RESET 696Dx G696L330T1U G696L330T1Uf 3.30 Push-Pull RESET 696Mx G696L308T1U G696L308T1Uf 3.10 Push-Pull RESET 696Cx G696L293T1U G696L293T1Uf 2.91 Push-Pull RESET 696Bx G696L263T1U G696L263T1Uf 2.64 Push-Pull RESET 696Ax G696L250T1U G696L250T1Uf 2.50 Push-Pull RESET 696Px T1: SOT-23-5
Ver: 1.8 May 10, 2006 TEL: 886-3-5788833 http://www.gmt.com.tw G696/G697Global Mixed-mode Technology Inc. Selector Guide ORDER NUMBER ORDER NUMBER (Pb free) RESET THRESHOLD (V) O UTPUT TYPE TOP MARK G697L463TOU G697L463TOUf 4.60 Open-DrainRESET 697Gx G697L438TOU G697L438TOUf 4.32 Open-DrainRESET 697Fx G697L400TOU G697L400TOUf 3.96 Open-DrainRESET 697Ex G697L330TOU G697L330TOUf 3.30 Open-DrainRESET 697Dx G697L308TOU G697L308TOUf 3.10 Open-DrainRESET 697Cx G697L293TOU G697L293TOUf 2.91 Open-DrainRESET 697Bx G697L263TOU G697L263TOUf 2.64 Open-Drain RESET 697Ax G697L250TOU G697L250TOUf 2.50 Open-Drain RESET 697Hx G696H463TOU G696H463TOUf 4.60 Push-Pull RESET 696Lx G696H438TOU G696H438TOUf 4.32 Push-Pull RESET 696Kx G696H400TOU G696H400TOUf 3.96 Push-Pull RESET 696Jx G696H330TOU G696H330TOUf 3.30 Push-Pull RESET 696Nx G696H308TOU G696H308TOUf 3.10 Push-Pull RESET 696Ix G696H293TOU G696H293TOUf 2.91 Push-Pull RESET 696Hx G696H263TOU G696H263TOUf 2.64 Push-Pull RESET 696Gx G696H250TOU G696H250TOUf 2.50 Push-Pull RESET 696Qx G696L463TOU G696L463TOUf 4.60 Push-Pull RESET 696Fx G696L438TOU G696L438TOUf 4.32 Push-Pull RESET 696Ex G696L400TOU G696L400TOUf 3.96 Push-Pull RESET 696Dx G696L330TOU G696L330TOUf 3.30 Push-Pull RESET 696Mx G696L308TOU G696L308TOUf 3.10 Push-Pull RESET 696Cx G696L293TOU G696L293TOUf 2.91 Push-Pull RESET 696Bx G696L263TOU G696L263TOUf 2.64 Push-Pull RESET 696Ax G696L250TOU G696L250TOUf 2.50 Push-Pull RESET 696Px TO: TSOT-23-5
Ver: 1.8 May 10, 2006 TEL: 886-3-5788833 http://www.gmt.com.tw G696/G697Global Mixed-mode Technology Inc. Absolute Maximum Ratings Terminal Voltage (with respect to GND) Delay Capacitor Pin Voltage, VCD. . -0.3 to (VCC +0.3V) Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational section s of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
Electrical Characteristics
(VCC = full range, T A = -40°C to +105°C, unless otherwise noted. Typical values are at T A = +25°C, VCC = 5V for 463/438/400/330 versions, VCC= 3.3V for 308/293 versions, and VCC = 3V for 263/250 version.) (Note 1) PARAMETER SYMBOL CONDITION MIN TYP MAX UNIT TA = 0°C +70°C 0.8 --- 5.5 VCC Range VCC<5.5V, G69_ _463/438/400/330_ --- 16.5 25 Supply Current (SOT-23-5) I CC VCC<3.6V, G69_ _308/293/263/250_ --- 13.9 22 µA G69_ _463_ 4.50 4.6 4.69 G69_ _438_ 4.23 4.32 4.40 G69_ _400_ 3.88 3.96 4.04 G69_ _330_ 3.25 3.3 3.37 G69_ _308_ 3.04 3.10 3.16 G69_ _293_ 2.86 2.91 2.96 G69_ _263_ 2.59 2.64 2.69 Reset Threshold V TH- G69_ _250_ 2.45 2.5 2.55 V Reset Threshold Hysterisis V HYS 3.6 5.3 7 % Reset Threshold Tempco --- 70 --- ppm/°C CD Delay Pin Threshold Voltage V TDC 0.87 1.25 1.29 V Delay Capacitor Pin Sink Current V CC = 1.5V, VCD = 0.5V 3 5 --- mA Delay Capacitor Pin Source Current ICD VCC > VTH- + VHYS 0.5 0.88 1.2 µA RESET Output Current Low (push-pull ac- tive low, and open-drain active-low, G696L and G697L) IOL VCC = 2.5V, V RESET = 0.5V 8 --- --- mA VCC = 5V, V RESET = 4.5V, VCC = 3.3V, V RESET = 2.8V, G696L308/293 3 --- --- --- RESET Output Current High (push-pull active low, G696L) IOH VCC = 3V, V RESET = 2.5V, VCC = 5V, VRESET = 0.5V, VCC = 3.3V, VRESET = 0.5V, G696H308/293 12 --- --- --- RESET Output Current Low (push-pull ac- tive high, G696H) IOL VCC = 3V, VRESET = 0.5V, RESET Output Current High (push-pull ac- tive high, G696H) IOH V CC = 2.5V, VRESET = 2V 2 --- --- mA RESET Open-Drain Output Leakage Cur- rent (G697L) VCC > VTH, RESET deasserted --- --- 1 µA Note 1: Production testing done at TA = +25°C; limits over temperature guaranteed by design.
Ver: 1.8 May 10, 2006 TEL: 886-3-5788833 http://www.gmt.com.tw G696/G697Global Mixed-mode Technology Inc. Typical Operating Characteristics (VCC = full range, T A = -40°C to +105°C, unless otherwise noted. Typical values are at T A = +25°C, VCC = 5V for 463/438/400/330 versions, VCC= 3.3V for 308/293 versions, and VCC = 3V for 263/250 version.) 0.96 0.97 0.98 0.99 1.01 1.02 1.03 1.04 1.05 1.06 - 4 0 - 3 0 - 2 0 - 1 00 1 02 02 73 04 05 06 07 08 09 0 TA, Ambient Temperature (°C) Normalized Ormalized V TH+ , V TH- (V) VTH+ VTH- Supply Current vs. VCC VCC (V) Supply Current (µA) Normalized Res et Thres hold vs . Temperature 0.1 100 1000 10000 0.0001 0.001 0.01 0.1 1 CD, Delay Pin Capacitance (µF) Output Time Delay ( µS) Output Time Delay vs. Capacitance (VCC<VTH to output change) 0.1 100 1000 10000 0.0001 0.001 0.01 0.1 1 CD, Delay Pin Capacitance (µF) Output Time Delay(mS) - 4 0 - 2 00 2 04 06 08 0 Temperature (°C) Supply Current (µA) VCC=5V VCC=3.3V VCC=2.5V Supply Curremt vs . Temperature (No Load) Output Time Delay vs. Capacitance (VCC>VTH to output change) V CD, Delay Pin Voltage (V) ICD, CD Delay Pin Sink Current (mA) VCC=3V VCC=2.5V VCC=1.5V CD Delay Pin Sink Current vs. Voltage
Ver: 1.8 May 10, 2006 TEL: 886-3-5788833 http://www.gmt.com.tw G696/G697Global Mixed-mode Technology Inc. Typical Operating Characteristics (continued) Recommended Minimum Footprint 100 150 200 250 300 - 4 0 - 3 0 - 2 0 - 1 001 02 03 04 05 06 07 08 09 0 TA, Ambient Temperature (°C) Output Time Delay (ms) CD=0.1µF Reset Output Time Delay vs. Temperature SOT-23-5 / TSOT-23-5
Ver: 1.8 May 10, 2006 TEL: 886-3-5788833 http://www.gmt.com.tw G696/G697Global Mixed-mode Technology Inc. Timing Diagram Figure 1 Functional Diagram Figure 2 VCC V TH + V TH - VCC VCC VCC V TH - V TH - tD2 V CC , Pin 2 C D , Pin 5 0.675 V IN Reset Output (Active Low), Pin 1 Reset Output (Active High), Pin 1 VCC V TH + V TH - VCC VCC VCC V TH - V TH - tD2 V CC , Pin 2 C D , Pin 5 0.675 V IN Reset Output (Active Low), Pin 1 Reset Output (Active High), Pin 1 () is for G696H
2 VCC
(RESET) 3G N D 5C D ICD ICD () is for G696H (RESET) 3G N D 5C D ICD ICD
G696/G697Global Mixed-mode Technology Inc. after VCC rises above the reset threshold.
3 GND Ground
5 CD External Programmable time delay is set by the capacitor connect to CD pin. and the G696L/G696H have a push-pull output stage. put to any supply between 0 and 5.5V. timing deagram and a Functional Block. no longer sinks current-it becomes an open circuit. nected to RESET can drift to undetermined voltages. RESET and small enough to pull RESET to ground. Figure 4. Interfacing to Figure 5. G697L Open-Drain RESET Output Allows
Ver: 1.8 May 10, 2006 TEL: 886-3-5788833 http://www.gmt.com.tw G696/G697Global Mixed-mode Technology Inc. Interfacing to µPs with Bidirectional Reset Pins Since the RESET output on the G697L is open drain, this device interfaces easily with µPs that have bidirec- tional reset pins, such as the Motorola 68HC11. Con- necting the µP supervisor’s RESET output directly to the microcontroller’s (µC’s) RESET pin with a single pull-up resistor allows either device to assert reset (Figure 5). G697L Open-Drain RESET Output Allows Use with Multiple Supplies Generally, the pull-up connected to the G697L will connect to the supply voltage that is being monitored at the IC ’s VCC pin. However, some systems may use the open-drain output to level-shift from the monitored supply to reset circuitry powered by some other supply (Figure 6). Note that as the G697L ’s V CC decreases below 1V, so does the IC ’s ability to sink current at RESET . Also, with any pull-up, RESET will be pulled high as VCC decays toward 0. The voltage where this occurs depends on the pull-up resistor value and the voltage to which it is connected. 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 G69_ _463/G69_ _308 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.
Ver: 1.8 May 10, 2006 TEL: 886-3-5788833 http://www.gmt.com.tw G696/G697Global Mixed-mode Technology Inc.
Package Information
SOT-23-5 (T1) Package Note: 1. Package body sizes exclude mold flash protrusions or gate burrs 2. Tolerance ±0.1000 mm (4mil) unless otherwise specified 3. Coplanarity: 0.1000mm 4. Dimension L is measured in gage plane θ1 1° 5 ° 9 ° 1 ° 5 ° 9 ° E e D H L C b A E e D H L C b A
Ver: 1.8 May 10, 2006 TEL: 886-3-5788833 http://www.gmt.com.tw G696/G697Global Mixed-mode Technology Inc. TSOT-23-5 (TO) Package Note: 6. Package body sizes exclude mold flash protrusions or gate burrs 7. Tolerance ±0.1000 mm (4mil) unless otherwise specified 8. Coplanarity: 0.1000mm 9. Dimension L is measured in gage plane θ1 1° 5 ° 9 ° 1 ° 5 ° 9 ° Taping Specification PACKAGE Q ’TY/REEL SOT-23-5 3,000 ea TSOT-23-5 3,000 ea GMT Inc. does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and GMT Inc. reserves the right at any time without notice to change said circuitry and specifications. E e D H L C b A E e D H L C b A Feed Direction TSOT-23-5、SOT-23-5 Package Orientation Feed Direction TSOT-23-5、SOT-23-5 Package Orientation