G686/G687 台湾致新代理商 GMT 重置系列 嵌入式延迟时间
Low Voltage Reset IC

Part Number	Vin (V)min.	Vin (V) max.	Detecting Voltage (V)	Manual Input	Delay (ms)	Isupply(uA)	Note	Package
G686/7	2.7	5.5	Independent VSEN=0.994V	Y	200	18	G686H/L Push-Pull High/Low Output G687L Open-Drain Output VSEN can be separated from VCC	SOT-23-5

 

The   G686/G687   microprocessor   (μP)   supervisory   circuits  monitor  system  voltages  in  μP  and  digital  systems.  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 sup-ply  enables  output  to  maintain  the  state  of  detection  even  when  voltage  of  the  monitored  power  supply  drops  to  0V.  The  VSEN  pin  is  high  impedance  and  can  be  used  for  application  of  reset  threshold  pro-gramming.

Moreover,  with  the  built-in  reset  timeout  delay  about  800ms,  enables  the  IC  remains  asserts  after  the  VSEN  has  risen  above  reset  threshold  or  manual  reset is deasserted.

The G686/G687 is available in SOT-23-5 packages.

Features „
Monitor Supply Voltages of ±2% Reset Thresh-old  Accuracy      
„Internal Set Reset Timeout Period 200ms (TYP)
„Manual RESET Input (MR)
„Low Quiescent Current : 15μA at VCC=3.3V „
Available in three RESET Output Options
Push-Pull RESET Output (G686L)
Push-Pull RESET Output (G686H)
Open-Drain RESET   (G687L)  „
Guaranteed Reset Valid to VCC= 1V
„Power-Supply Transient Immunity
„SOT-23-5 Package

Applications „
Computers
„Controllers „
Intelligent Instruments „
Critical μP and μC Power Monitoring „
Portable/Battery-Powered Equipment „
Telecom/Networking Equipment

Ordering Information

ORDER NUMBER	MARKING	TEMP. RANGE	OUTPUT TYPE	PACKAGE (Green)
G686LT11U	68FLx	~40°C to 105°C	Push-Pull Active Low	SOT-23-5
G686HT11U	68FHx	~40°C to 105°C	Push-Pull Active High	SOT-23-5
G687LT11U	68GLx	~40°C to 105°C	Open Drain	SOT-23-5

Note: T1: SOT-23-5 1: Bonding Code U: Tape Reel

Pin  Configuration                                                                                                               Typical  Application  Circuit

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