G696 G697 台湾致新代理商 GMT 复位芯片系列 延迟时间可调 G697L263T1UF
Microprocessor Reset IC

Part Number	Vin (V)min.	Vin (V) max.	Detecting Voltage (V)	ICD source(uA)	VTCD(V)	Isupply(uA)	Note	Package
G696/7	0.8	5.5	2.63/2.93/ 3.08/3.33/ 4.00/4.38	0.88	1.25	14	G696H/L Push-Pull High/Low Output G697L Open-Drain Output TCD (ms) = 1,685 × CD (uF)	SOT-23-5/ TSOT-23-5

 

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 VCC supply voltage declines below  a  preset  threshold,  with  hysteresis  keeping  it  asserted  for  time  delay  determined  by  externally  pro-grammable  time  delay  generator  after  VCC  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  VCC.  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  VCC, and  the  outputs  are  guaranteed  to  be  in  the  correct  logic state for VCC 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-23-5packages.

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

Pin  Configuration                                                                                       Typical  Application  Circuit

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