# UCC44273DBVR

**Texas Instruments** · Gate Drivers · SOT-23-5

UCC44273DBVR from Texas Instruments, in a SOT-23-5. 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 | IN | input | Non-inverting PWM input with TTL/CMOS compatible thresholds (typical high 2.2 V, low 1.2 V); operating voltage 0 to 18 V, absolute maximum -6 to 20 V. |
| 2 | GND | power_in | Ground reference for all signals. |
| 3 | OUT | output | Sourcing/sinking driver output with 4-A peak capability at VDD = 12 V; internally connected to pin 4; output voltage range -0.3 to VDD + 0.3 V DC. |
| 4 | OUT | output | Sourcing/sinking driver output with 4-A peak capability at VDD = 12 V; internally connected to pin 3; output voltage range -0.3 to VDD + 0.3 V DC. |
| 5 | VDD | power_in | Bias supply input; operating range 4.5 to 18 V, absolute maximum -0.3 to 20 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23-5 |
| Category | Motor Driver ICs |
| Pins | 5 |

## CAD (KiCad official)

- Symbol: `UCC44273DBVR`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `ucc44273dbvr-etched.step` / `ucc44273dbvr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ucc44273dbvr.step` / `ucc44273dbvr.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/lit/ds/symlink/ucc44273.pdf) (28 pp, sha256 `0bd449a29a72dba3`, retrieved 2026-10-03, tier: manufacturer)
- **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/ucc44273dbvr-datasheet.pdf)