G686/G687 台湾致新代理商 GMT 复位芯片系列 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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