# DRV8803DWR

**Texas Instruments** · Stepper Motor Driver · SOIC-20-300mil

DRV8803DWR from Texas Instruments, in a SOIC-20-300mil. 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 | VM | power_in | Device power supply voltage input, operating range 8.2V to 60V for motor or inductive load supply |
| 2 | VCLAMP | passive | Catch diode clamp voltage connection point for inductive load energy dissipation; connect to VM supply or external Zener/TVS diode to VM |
| 3 | OUT1 | output | Low-side switch output for channel 1 connected to load 1; drives low when IN1 = 1, maximum output voltage 65V |
| 4 | OUT2 | output | Low-side switch output for channel 2 connected to load 2; drives low when IN2 = 1, maximum output voltage 65V |
| 5 | GND | power_in | Device ground connection; all ground pins must be grounded |
| 6 | GND | power_in | Device ground connection; all ground pins must be grounded |
| 7 | GND | power_in | Device ground connection; all ground pins must be grounded |
| 8 | OUT3 | output | Low-side switch output for channel 3 connected to load 3; drives low when IN3 = 1, maximum output voltage 65V |
| 9 | OUT4 | output | Low-side switch output for channel 4 connected to load 4; drives low when IN4 = 1, maximum output voltage 65V |
| 10 | nENBL | input | Active-low output enable input; internal pull-down resistor (100kΩ typical); low enables all four output drivers |
| 11 | RESET | input | Active-high reset input to reset internal logic and overcurrent protection circuit; internal pull-down resistor (100kΩ typical) |
| 12 | IN4 | input | Channel 4 logic input; IN4 = 1 drives OUT4 low; internal pull-down resistor (100kΩ typical) |
| 13 | IN3 | input | Channel 3 logic input; IN3 = 1 drives OUT3 low; internal pull-down resistor (100kΩ typical) |
| 14 | GND | power_in | Device ground connection; all ground pins must be grounded |
| 15 | GND | power_in | Device ground connection; all ground pins must be grounded |
| 16 | GND | power_in | Device ground connection; all ground pins must be grounded |
| 17 | IN2 | input | Channel 2 logic input; IN2 = 1 drives OUT2 low; internal pull-down resistor (100kΩ typical) |
| 18 | IN1 | input | Channel 1 logic input; IN1 = 1 drives OUT1 low; internal pull-down resistor (100kΩ typical) |
| 19 | NC | unconnected | No connect pin; leave unconnected |
| 20 | nFAULT | tri_state | Active-low open-drain fault output indicating overcurrent protection trip, thermal shutdown, or UVLO condition; maximum 20mA, external pull-up resistor required |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-20-300mil |
| Category | Motor Driver ICs |
| Pins | 20 |

## CAD (KiCad official)

- Symbol: `DRV8803DWR`
- Footprint: `Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm`
- 3D model: SOIC-20-300mil (KiCad packages3D, STEP)
- 3D model files: `drv8803dwr-etched.step` / `drv8803dwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `drv8803dwr.step` / `drv8803dwr.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/drv8803) (38 pp, sha256 `4c3c25bab67f16dd`, 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/drv8803dwr-datasheet.pdf)