# BL5612

**BL(Shanghai Belling)** · Gate Drive ICs · SOP-8

BL5612 from BL(Shanghai Belling), 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 | NC | unconnected | No connection; the datasheet lists this pin as not connected. |
| 2 | INA | input | Logic input INA controls the H-bridge; the recommended input logic range is 0 to 5.0 V. |
| 3 | INB | input | Logic input INB controls the H-bridge; the recommended input logic range is 0 to 5.0 V. |
| 4 | NC | unconnected | No connection; the datasheet lists this pin as not connected. |
| 5 | GND | power_in | Ground reference for the device. |
| 6 | OUTB | output | H-bridge output B, driving the motor terminal; it is high-impedance in stop mode and low in brake mode. |
| 7 | OUTA | output | H-bridge output A, driving the motor terminal; the datasheet calls for a 0.1uF capacitor between OUTA and OUTB across the motor. |
| 8 | VM | power_in | Motor/H-bridge supply, recommended 3.0 V to 25.0 V with an absolute maximum of 30.0 V; the datasheet calls for a 10uF or larger capacitor to GND. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | BL(Shanghai Belling) |
| Package | SOP-8 |
| Category | Power Management 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 |
|---|---|---|---|---|---|---|---|
| Power Supply VM (absolute maximum) | VM | -0.3 |  | 30 | V |  | 3 |
| Input Logic (absolute maximum) | INA, INB | -0.3 |  | 7 | V |  | 3 |
| Operation temperature (absolute maximum) | TJ | -40 |  | 150 | °C |  | 3 |
| Storage temperature (absolute maximum) | Tstg | -65 |  | 150 | °C |  | 3 |
| Power Supply VM (recommended operating) | VM | 3 |  | 25 | V |  | 3 |
| Input Logic (recommended operating) | INA, INB | 0 |  | 5 | V |  | 3 |
| Output continuous current (recommended operating) | IOUTA, IOUTB | 0 |  | 1.5 | A | Using 25mm2 FR4 signal layer PCB (1 oz) under VM=7.2V test | 3 |
| Input high level voltage | VINH | 1.5 |  | 5 | V |  | 3 |
| Input low level voltage | VINL | 0 |  | 0.7 | V |  | 3 |
| Pull down resistance | RPD | 100 |  | 200 | KΩ |  | 3 |
| Standby current | IVM_OFF |  | 1.5 | 10 | uA | INA=INB=0 | 3 |
| Operation current | IVM_ON |  | 2 | 4 | mA |  | 3 |
| ESD (HBM) rating | ESD(HBM) |  | 4 |  | kV | VM, INA, INB, OUTA, OUTB | 3 |
| Thermal resistance junction-to-ambient | θJA |  | 160 |  | °C/W |  | 3 |
| ON resistance | RDSON |  | 0.35 |  | Ω | IOUT=1.0A | 3 |
| Thermal shutdown protection | TOTSD |  | 160 |  | ºC |  | 3 |
| Thermal shutdown hysteresis | THYS |  | 50 |  | ºC |  | 3 |

## CAD (KiCad official)

- Symbol: `BL5612`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `bl5612-etched.step` / `bl5612-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bl5612.step` / `bl5612.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [BL(Shanghai Belling) datasheet](docs/bl5612-datasheet.pdf) (7 pp, sha256 `1907ece5c0d463de`, retrieved 2026-11-04, tier: lcsc)
- **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/bl5612-datasheet.pdf)