GMT G682H12STA1U Low Voltage Reset IC

General Description 

The  G682/G683  microprocessor  (μP)  supervisory  cir-cuits  monitor  system  voltages  in  μP  and  digital  sys-tems.  They  provide  excellent  circuit  reliability  at  low  cost by eliminating external components. Since the sense pin is separated from power supply, it allows  the  IC  to  monitor  added  power  supply.  Using  the IC with the sense pin separated from power supply enables output to maintain the state of detection even when  voltage  of  the  monitored  power  supply  drops  to  0V. The VSEN pin of G68_ _09T_ is high impedance and  can  be  used  for  application  of  reset  threshold  programming. Moreover, with the built-in delay circuit, connecting the delay  capacitance  pin  to  the  capacitor  enables  the  IC  to provide an arbitrary release delay time. All of these devices are offered in SOT-23-5, SC-70-5, DFN1.6X1.6-6 and ADNF1.5X1.5-6 packages.

Features 

• Monitor Supply Voltages from 0.9V to 1.8V „

• ±2% Reset Threshold Accuracy 

• Capacitor-Adjustable Reset Timeout Period tRP (ms)≅ 2.7 × CD (nF) at VCC=3.3V 

• Low Quiescent Current : 10μA at VCC =3.3V   

• Available in three RESET Output Options 

Push-Pull RESET Output (G682L)

Push-Pull RESET Output (G682H) 

Open-Drain RESET   (G683L) 

• Programmable Reset Threshold Application (G68_ _09T_) „Guaranteed Reset Valid to VCC= 1V Power-Supply Transient Immunity„

• SOT-23-5, SC-70-5, DFN1.6X1.6-6 and ADFN1.5X1.5-6 Packages

Applications 

• Computers 

• Controllers 

• Intelligent Instruments „Critical μP and μC 

• Power Monitoring „Portable/Battery-Powered Equipment 

• Telecom/Networking Equipment