Texas Instruments TPS3103K33DBVTG4, Simple Reset/Power-On Reset IC, Active Low, Open Drain Output, 2.941V Threshold, 65ms Minimum Reset Timeout, SOT-23-6 Package, -40°C to 85°C.
| Parameter | Value |
|---|---|
| Type | Simple Reset/Power-On Reset |
| Mounting | Surface Mount |
| Voltage - threshold | 2.941V |
| Number of voltages monitored | 1 |
| Operating temperature | -40°C~85°C(TJ) |
| Reset | Active Low |
| Output | Open Drain or Open Collector |
| Package | Tape & Reel (TR) |
| Reset timeout | 65ms Minimum |
| Case | SOT-23-6 |
Its 2.941V threshold is set for 3.0V or 3.3V nominal rails — the reset asserts when the supply drops below that level, holding the processor in reset until the rail recovers and stays above threshold for the full 65ms minimum timeout period.
The reset output is active-low, open-drain. The open-drain topology also allows wired-OR connection with other reset sources like a manual reset button or a watchdog output.
Yes. Because the output is open-drain, it can only pull the reset line low. An external pull-up resistor to the supply rail (typically 10kΩ to 100kΩ) is needed to hold the reset line high during normal operation.