G682 G683 台湾致新代理商 GMT 复位芯片系列 延迟时间可调
Low Voltage Reset IC
| Part Number | Vin (V)min. | Vin (V) max. | Detecting Voltage (V) |
ICD source(uA) |
VTCD(V) | Isupply(uA) | Note | Package |
| G682/3 | 2.7 | 5.5 | Independent VSEN=0.788V |
/ | 0.788 | 12 | G682H/L Push-Pull High/Low Output G683L Open-Drain Output TCD (ms) = 2,700 × CD (uF) VSEN can be separated from VCC |
SC-70-5/ SOT-23-5/ TSOT-23-5/ DFN1.6X1.6-6 |
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
Pin Configuration Typical Application Circuit
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