Texas Instruments TPS3851G50SDRBT, Simple Reset/Power-On Reset IC, monitors a single 5V rail, asserts an Active Low Open Drain reset, 170ms minimum reset timeout, 8-VDFN exposed pad (8-SON 3x3 mm), -40°C to 125°C junction temperature.
| Parameter | Value |
|---|---|
| Type | Simple Reset/Power-On Reset |
| Mounting | Surface Mount |
| Voltage - threshold | 5V |
| Number of voltages monitored | 1 |
| Operating temperature | -40°C~125°C(TJ) |
| Reset | Active Low |
| Output | Open Drain or Open Collector |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Reset timeout | 170ms Minimum |
| Case | 8-VDFN Exposed Pad |
The TPS3851G50SDRBT is a single-channel voltage supervisor from TI that monitors a 5V supply and holds the reset output low for 170ms minimum after the rail crosses the threshold — long enough for most MCUs and SoCs to finish their power-on reset sequence. The open-drain output lets you wire-OR the reset signal with other supervisors or a manual reset button, pulling to the logic supply through an external pull-up resistor.
The voltage threshold is 5V. The supervisor asserts reset when the monitored rail drops below this level and releases after the 170ms minimum timeout once the rail recovers.