Texas Instruments TPS3103H20DBVR, Simple Reset/Power-On Reset, Active Low, Open Drain, SOT-23-6, 1.84V threshold, 65ms min timeout, -40°C~85°C.
| Parameter | Value |
|---|---|
| Type | Simple Reset/Power-On Reset |
| Mounting | Surface Mount |
| Voltage - threshold | 1.84V |
| 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); Cut Tape (CT) |
| Reset timeout | 65ms Minimum |
| Case | SOT-23-6 |
The TPS3103H20DBVR: The active-low, open-drain output pulls low when the supply drops below that threshold and holds reset for a minimum of 65ms after the supply recovers.
The small footprint suits space-constrained boards in industrial or telecom equipment where a single 1.8V rail needs supervision.
Yes. The 1.84V threshold is set to monitor a 1.8V nominal rail — the reset asserts when the supply falls to 1.84V, which is appropriate for 1.8V logic. The open-drain output can be pulled up to any voltage within the absolute maximum ratings of the device, so it interfaces directly with 1.8V or 3.3V logic.
The die, threshold, and electrical specifications are identical. For reel quantities, either works; for small prototype volumes, the DBVR cut-tape option may be more convenient.
No. This is a simple reset IC with no manual reset (MR) input. It monitors a single voltage rail and asserts reset based solely on the supply voltage crossing the 1.84V threshold. For designs requiring a push-button or host-driven reset, look at the TPS3103 family variants with an MR pin.