# TPS389033QDSERQ1

**Texas Instruments** · Supervisor And Reset ICs · WSON-6(1.5x1.5)

TPS389033QDSERQ1 from Texas Instruments, in a WSON-6(1.5x1.5). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | SENSE | input | Voltage input to monitor; RESET asserts when voltage falls below VITN and deasserts when above VITP. |
| 2 | GND | power_in | Ground reference pin. |
| 3 | MR | input | Manual reset input; pulling low asserts RESET output. |
| 4 | VDD | power_in | Supply voltage input (recommended operating range 1.5 V to 5.5 V); place 0.1-µF ceramic capacitor close to this pin. |
| 5 | CT | passive | Timing capacitor connection pin; external ground-referenced capacitor sets reset delay time per tPD(r) (s) = CCT (µF) × 1.07 + 25 µs (nom). |
| 6 | RESET | tri_state | Open-drain reset output (±20 mA absolute maximum); asserts low when SENSE falls below VITN or MR pulled low, remains low for delay period; requires 10 kΩ to 1 MΩ pullup resistor. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | WSON-6(1.5x1.5) |
| Category | Power Management (PMIC) |
| Pins | 6 |

## CAD (KiCad official)

- Symbol: `TPS389033QDSERQ1`
- Footprint: `Package_SON:WSON-6_1.5x1.5mm_P0.5mm`
- 3D model: WSON-6(1.5x1.5) (KiCad packages3D, STEP)
- 3D model files: `tps389033qdserq1-etched.step` / `tps389033qdserq1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tps389033qdserq1.step` / `tps389033qdserq1.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/tps3890-q1) (27 pp, sha256 `df60d175a821bd24`, retrieved 2026-10-06, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/tps389033qdserq1-datasheet.pdf)