G692/G693 台湾致新代理商 GMT 复位芯片系列 嵌入式延迟时间 G693L293TCUF
4-Pin μP Voltage Monitors with Manual Reset Input

Part Number	Vin (V)min.	Vin (V) max.	Detecting Voltage (V)	Manual Input	Delay (ms)	Isupply(uA)	Note	Package
G692/3	1	5.5	2.63/2.93/3.08	Y	230	14	G692H/L Push-Pull High/Low Output G693L Open-Drain Output	SC-70-5/ SOT-143

 

General Description
The  G692/G693  are  microprocessor  (μP)  supervisory  circuits  used  to  monitor  the  power  supplies  in  μP  and  digital systems. They provide excellent circuit reliability and  low  cost  by  eliminating  external  components  and  adjustments  when  used  with  +5V,  +3.3V,  +3.0V-  pow-ered  circuits.  The  G692/G693  also  provides  a  de-bounced manual reset input.

These  circuits  perform  a  single  function:  they  assert  a  reset  signal  whenever  the  VCC  supply  voltage  declines  below  a  preset  threshold,  keeping  it  asserted  for  at  least   230ms   after   VCC   has   risen   above   the   reset   threshold.  Reset  thresholds  suitable  for  operation  with  a variety of supply voltages are available.

The  G693L  has  an  open-drain  output  stage,  while  the  G692 have push-pull outputs. The G693L’s open-drain RESET    output  requires  a  pull-up  resistor  that  can  be  connected to a voltage higher than VCC.

The  G692L  have  an  active-low  RESET   output,  while  the  G692H  has  an  active-high  RESET  output.  The  re-set comparator is designed to ignore fast transients on VCC,  and  the  outputs  are  guaranteed  to  be  in  the  cor-rect logic state for VCC down to 1V.

Low supply current makes the G692/G693 ideal for use in portable equipment. The G692/G693 are available in a SOT-143, SC-70-5(SOT-353), SOT-23-5 packages.

Features
„Precision Monitoring of +3V, +3.3V, and +5VPower-Supply Voltages„
Fully Specified Over Temperature „
Available in Three Output Configurations
Push-Pull RESET Output (G692L)
Push-Pull RESET Output (G692H)
Open-Drain RESET Output (G693L)
„230ms Min Power-On Reset Pulse Width „
14μA Supply Current
„Guaranteed Reset Valid to VCC = +1V „
Power Supply Transient Immunity „
No External Components
„Manual Reset Input „
SOT-143, SC-70-5(SOT-353) and SOT-23-5 Pack-age
„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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