TI TLV803SDBZT, Simple Reset/Power-On Reset, Active Low, Open Drain or Open Collector, 1 Channel, 2.93V Threshold, 120ms Minimum Reset Timeout, SOT-23-3, -40°C to 125°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 ~ 125°C (TA) |
| Reset | Active Low |
| Output | Open Drain or Open Collector |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Reset timeout | 120ms Minimum |
| Case | TO-236-3, SC-59, SOT-23-3 |
The 120ms minimum reset timeout gives the supply rail time to stabilize and the oscillator time to start before the processor begins executing code.
The SOT-23-3 package keeps the footprint small — three pins, no external components needed beyond a pull-up resistor on the open-drain output.
TI lists the TLV803SDBZT as an active product with ROHS3 compliance.
The TLV803SDBZT has a minimum reset timeout of 120ms, which holds the reset output low for at least that duration after the supply voltage rises above the 2.93V threshold.
Yes, the TLV803SDBZT is ROHS3 compliant, meeting current EU and global environmental restrictions on hazardous substances.
The closest functional equivalent is the TLV803EA29VDBZR, which shares the 2.93V threshold, active-low open-drain output, and SOT-23-3 package, but has a 130ms minimum reset timeout instead of 120ms. For a faster timeout, the TLV803ED29DBZR offers 33ms minimum. Verify timing compatibility in your design before substituting.
The TLV803SDBZT is functionally similar to the MAX809 — both are simple reset ICs with active-low open-drain output. The TLV803SDBZT monitors a 2.93V threshold with a 120ms timeout. Check the MAX809 variant you are replacing: the MAX809 has multiple threshold options (2.63V, 2.93V, 3.08V, etc.) and a 140ms typical timeout. If the threshold and timing match your design, the TLV803SDBZT is a drop-in candidate in the same SOT-23-3 footprint.
Yes. The 2.93V threshold is specifically chosen for monitoring 3.3V supply rails. It asserts reset when the rail drops below 2.93V, which is above the typical minimum operating voltage of 3.3V MCUs (usually 2.7V to 3.0V), ensuring the processor resets before it enters an undefined state.