# DRV8870DDAR-TP

**TECH PUBLIC** · Brushed DC Motor Drivers · ESOP-8

DRV8870DDAR-TP from TECH PUBLIC, in a ESOP-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 | GND | power_in | Logic ground; connect to board ground. |
| 2 | IN2 | input | Logic input that controls the H-bridge output, with a 100KΩ internal pulldown. |
| 3 | IN1 | input | Logic input that controls the H-bridge output, with a 100KΩ internal pulldown. |
| 4 | VREF | power_in | Analog input; apply a voltage between 0.3V and 5V. |
| 5 | VM | power_in | 6.5V to 40V power supply; connect a 0.1µF bypass capacitor to ground plus sufficient bulk capacitance rated for the VM voltage. |
| 6 | OUT1 | output | H-bridge output; connect directly to the motor or other inductive load. |
| 7 | ISEN | passive | High-current ground path; connect to ground through a low-value, high-power-rating resistor for current regulation, or directly to ground if not regulating current. |
| 8 | OUT2 | output | H-bridge output; connect directly to the motor or other inductive load. |
| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TECH PUBLIC |
| Package | ESOP-8 |
| Category | Motor Driver ICs |
| Pins | 9 |

## CAD (KiCad official)

- Symbol: `DRV8870DDAR-TP`
- Footprint: `Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm`
- 3D model: ESOP-8 (KiCad packages3D, STEP)
- 3D model files: `drv8870ddar-tp-etched.step` / `drv8870ddar-tp-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `drv8870ddar-tp.step` / `drv8870ddar-tp.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [TECH PUBLIC datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8604435838658883584) (7 pp, sha256 `7660061444c200a6`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (vision), consensus `claude-opus-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/drv8870ddar-tp-datasheet.pdf)