# GR7889

**GR** · Brushed DC Motor Drivers · SOP-8

GR7889 from GR, in a SOP-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 | INA | input | Control signal input for channel A; the datasheet specifies VINL 0 to 0.7 V and VINH 2 to 6 V for INA and INB. |
| 2 | INB | input | Control signal input for channel B; the datasheet specifies VINL 0 to 0.7 V and VINH 2 to 6 V for INA and INB. |
| 3 | GND | power_in | Power ground for the device. |
| 4 | VCC | power_in | Positive supply pin with an operating range of 2 to 20 V and an absolute maximum of -0.3 to +23 V. |
| 5 | OB | output | Channel B driver output, bonded in parallel with pin 6; the datasheet requires adequate copper pour around OA and OB for heat dissipation when driving large loads. |
| 6 | OB | output | Channel B driver output, bonded in parallel with pin 5; the datasheet requires adequate copper pour around OA and OB for heat dissipation when driving large loads. |
| 7 | OA | output | Channel A driver output, bonded in parallel with pin 8; the datasheet requires adequate copper pour around OA and OB for heat dissipation when driving large loads. |
| 8 | OA | output | Channel A driver output, bonded in parallel with pin 7; the datasheet requires adequate copper pour around OA and OB for heat dissipation when driving large loads. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | GR |
| Package | SOP-8 |
| Category | Motor Driver ICs |
| Pins | 8 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply voltage (absolute maximum) | VCC | -0.3 |  | 23 | V |  | 2 |
| Average output current (absolute maximum) | IOC |  |  | 5 | A |  | 2 |
| Peak output current (absolute maximum) | IOP |  |  | 10 | A |  | 2 |
| Power dissipation (SOP8) | PD |  |  | 500 | mW | SOP8 package | 2 |
| Operating temperature range | TA | -20 |  | 85 | ℃ |  | 2 |
| Storage temperature range | Tc | -55 |  | 150 | ℃ |  | 2 |
| Soldering temperature | Th |  |  | 260 | ℃ | 10s | 2 |
| Operating voltage | VCC | 2 |  | 20 | V |  | 2 |
| Average output current | IOC |  | 3.3 | 5 | A | OA和OB脚外要有足够覆铜来散热 | 2 |
| Standby current | ISTB |  | 0.01 | 2 | uA | INA=INB=GND | 2 |
| Input low voltage | VINL | 0 |  | 0.7 | V | INA、INB | 2 |
| Input high voltage | VINH | 2 |  | 6 | V | INA、INB | 2 |

## CAD (KiCad official)

- Symbol: `GR7889`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `gr7889-etched.step` / `gr7889-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `gr7889.step` / `gr7889.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [GR datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590907627868004352) (5 pp, sha256 `f458b3b0cce10d88`, retrieved 2026-10-17, 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-5-5` (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/gr7889-datasheet.pdf)