# UCC27523D

**Texas Instruments** · Gate Drivers · SOIC-8

UCC27523D from Texas Instruments, in a SOIC-8. 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 | ENA | input | Channel A enable input; high enables OUTA, low disables OUTA independent of INA state; floating enables output |
| 2 | INA | input | Channel A inverting input with TTL/CMOS thresholds (1.0-1.4V low, 1.9-2.3V high) and 0.9V hysteresis; output held low when input floating |
| 3 | GND | power_in | Ground reference; all signal levels measured with respect to this pin |
| 4 | INB | input | Channel B inverting input with TTL/CMOS thresholds (1.0-1.4V low, 1.9-2.3V high) and 0.9V hysteresis; output held low when input floating |
| 5 | OUTB | output | Channel B output; 5A peak source/sink current; rise time 7-18 ns, fall time 6-10 ns; swings GND to VDD |
| 6 | VDD | power_in | Auxiliary power supply input; 4.5-18V operating range with 4.2V UVLO on-threshold and 0.3V hysteresis |
| 7 | OUTA | output | Channel A output; 5A peak source/sink current; rise time 7-18 ns, fall time 6-10 ns; swings GND to VDD |
| 8 | ENB | input | Channel B enable input; high enables OUTB, low disables OUTB independent of INB state; floating enables output |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Motor Driver ICs |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `UCC27523D`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `ucc27523d-etched.step` / `ucc27523d-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ucc27523d.step` / `ucc27523d.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/ucc27523) (50 pp, sha256 `e7836a4e90e4ed98`, retrieved 2026-10-05, 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/ucc27523d-datasheet.pdf)