TL7702B是TI公司的一款无产品，TL7702B是具有可编程 UV 阈值和重置时间延迟的单 SVS，本页介绍了TL7702B的产品说明、应用、特性等，并给出了与TL7702B相关的TI元器件型号供参考。
TL7702B - 具有可编程 UV 阈值和重置时间延迟的单 SVS - 无 - 监控器和复位IC - TI公司（Texas Instruments，德州仪器）
The TL7702B, TL7705B, and TL7733B are integrated-circuit supply-voltage supervisors designed 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 1 V. As VCC approaches 3 V (assuming that SENSE is above VT+), 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, outputs RESET\ and RESET go active. To ensure that a complete reset occurs, the reset outputs remain active for a time delay after the voltage at the SENSE input exceeds the positive-going threshold value. The time delay is determined by the value of the external capacitor CT: td 2.6 × 104 × CT, where CT is in farads (F) and td is in seconds (s).
An external capacitor (typically 0.1 µF) must be connected to REF to reduce the influence of fast transients in the supply voltage.
The TL7702BC, TL7705BC, and TL7733BC are characterized for operation from 0°C to 70°C. The TL7702BI, TL7705BI, and TL7733BI are characterized for operation from –40°C to 85°C. The TL7705BQ is characterized for operation from –40°C to 125°C. The TL7705BM is characterized for operation from –55°C to 125°C.
- Power-On Reset Generator
- Automatic Reset Generation After Voltage Drop
- RESET\ Output Defined From VCC 1 V
- Precision Voltage Sensor
- Temperature-Compensated Voltage Reference
- True and Complement Reset Outputs
- Externally Adjustable Pulse Duration
The TL7705BM is obsolete and no longer is supplied.
