# BL8023C

**BL Shanghai Belling** · Relay / Coil Drivers · SOP-8

BL8023C from BL Shanghai Belling, in a SOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | OA | output | Output A, relay driver output capable of 300mA typical driving current, logic state determined by inputs A and B according to logic function table. |
| 2 | NC | unconnected | Not connected to internal circuit. |
| 3 | A | input | Input A, active high with 3V threshold, input rise/fall time must be less than 1ms to prevent device damage. |
| 4 | GND | power_in | Ground, reference potential for device operation. |
| 5 | OB | output | Output B, relay driver output capable of 300mA typical driving current, logic state inverted relative to output A. |
| 6 | NC | unconnected | Not connected to internal circuit. |
| 7 | B | input | Input B, active high with 3V threshold, input rise/fall time must be less than 1ms to prevent device damage. |
| 8 | VIN | power_in | Supply voltage input, 5V to 36V operating range recommended, 40V absolute maximum, quiescent current 1μA typical. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | BL Shanghai Belling |
| Package | SOP-8 |
| Category | Motor Driver ICs |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `BL8023C`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `bl8023c-etched.step` / `bl8023c-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bl8023c.step` / `bl8023c.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [BL Shanghai Belling datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588881645814624256) (6 pp, sha256 `c3a0b0d0253348a3`, retrieved 2026-09-17, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-4-6` (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/bl8023c-datasheet.pdf)