Texas Instruments TPS3850G18DRCR, Simple Reset/Power-On Reset, Active Low, Open Drain, 1.8V Threshold, -40°C~125°C, 10-VFDFN Exposed Pad, 10-VSON (3x3).
| Parameter | Value |
|---|---|
| Type | Simple Reset/Power-On Reset |
| Mounting | Surface Mount |
| Voltage - threshold | 1.8V |
| 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 | Adjustable/Selectable |
| Case | 10-VFDFN Exposed Pad |
The reset timeout is adjustable or selectable, letting you tune the pulse width to match the downstream device's power-on reset requirements or to filter brief supply glitches.
Housed in a 10-VSON package measuring 3 mm × 3 mm with an exposed thermal pad, the part requires a soldered pad on the PCB for heat sinking; the pad should be connected to the ground plane with thermal vias for best thermal performance.
Yes, the voltage threshold is 1.8V, so it directly monitors a 1.8V supply rail. The open-drain output can be pulled up to any logic voltage up to the absolute maximum rating of the output transistor.
The reset timeout is adjustable or selectable via an external capacitor or pin-strapping, depending on the specific variant within the TPS3850 family. The exact timing range is defined in the device datasheet.
The TPS3850G18DRCR monitors a 1.8V threshold, while the TPS3850G20 monitors a 2.0V threshold. Both are in the same TPS3850 family with the same package and temperature range; the choice is driven by the supply voltage you need to supervise.