具有可编程欠压阈值和复位延时时间的单通道电压监控器
| Number of supplies monitored | 1 |
| Threshold voltage 1 (Typ) (V) | 2.53 |
| Features | Manual reset capable, Wide input voltage, Complimentary output |
| Reset threshold accuracy (%) | 2 |
| Output driver type/reset output | Active-high, Active-low, Open-drain |
| Time delay (ms) | Programmable |
| Rating | Catalog |
| Watchdog timer WDI (sec) | None |
| Operating temperature range (C) | 0 to 70, -40 to 85 |
- Power-On Reset Generator
- Automatic Reset Generation After Voltage Drop
- Wide Supply-Voltage Range
- Precision Voltage Sensor
- Temperature-Compensated Voltage Reference
- Externally Adjustable Pulse Duration
The TL77xxA family of integrated-circuit supply-voltage supervisors is designed specifically for use as reset controllers in microcomputer and microprocessor systems. The supply-voltage supervisor monitors the supply for undervoltage conditions at the SENSE input. During power up, the RESET output becomes active (low) when VCC attains a value approaching 3.6 V. At this point (assuming that SENSE is above VIT+), the delay timer function activates a time delay, after which outputs RESET and RESET go inactive (high and low, respectively). When an undervoltage condition occurs during normal operation, RESET and RESET go active.
