Texas Instruments TPS3809K33DBVTG4, Simple Reset/Power-On Reset, Active Low, Push-Pull Output, 2.93V Threshold, 120ms Minimum Reset Timeout, SOT-23-3, -40°C to 85°C.
| Parameter | Value |
|---|---|
| Type | Simple Reset/Power-On Reset |
| Mounting | Surface Mount |
| Voltage - threshold | 2.93V |
| Number of voltages monitored | 1 |
| Operating temperature | -40°C~85°C(TA) |
| Reset | Active Low |
| Output | Push-Pull, Totem Pole |
| Package | Tape & Reel (TR) |
| Reset timeout | 120ms Minimum |
| Case | TO-236-3, SC-59, SOT-23-3 |
When the supply drops below that level, it asserts a reset signal — active-low, push-pull output — and holds the reset for a minimum of 120ms after the supply recovers. That delay gives the downstream processor time to stabilise before the reset is released.
The part is listed as active. There is no indication of discontinuation or last-time-buy.
The reset timeout is a minimum of 120ms. This is the period the reset output stays asserted after the supply rises above the threshold, giving the processor time to initialise.
Yes. With a 2.93V threshold and active-low reset output, it directly monitors a 3.3V supply rail and provides a clean reset signal to 3.3V MCUs, DSPs, or FPGAs.