# TC618CS

**Shenzhen Fuman** · Brushed DC Motor Drivers · ESOP-8

TC618CS from Shenzhen Fuman, 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 | VCC | power_in | Logic control supply input, recommended 2 to 5 V with an absolute maximum of 7 V. |
| 2 | INA | input | Forward logic input with a 12 kΩ internal pull-down; VIH minimum is 2.0 V and VIL maximum is 0.8 V. |
| 3 | INB | input | Reverse logic input with a 12 kΩ internal pull-down; VIH minimum is 2.0 V and VIL maximum is 0.8 V. |
| 4 | VDD | power_in | Motor power supply input, recommended 2.0 to 9.6 V with an absolute maximum of 11 V; place a decoupling capacitor close to this pin. |
| 5 | OUTB | output | Reverse-direction H-bridge output, rated for 2.1 A continuous and 3.5 A peak output current. |
| 6 | AGND | power_in | Ground for the logic control circuit. |
| 7 | PGND | power_in | Ground for the output power MOSFETs; keep the decoupling capacitor return to this ground short. |
| 8 | OUTA | output | Forward-direction H-bridge output, rated for 2.1 A continuous and 3.5 A peak output current. |
| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Shenzhen Fuman |
| Package | ESOP-8 |
| Category | Motor Driver ICs |
| Pins | 9 |

## CAD (KiCad official)

- Symbol: `TC618CS`
- Footprint: `Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm`
- 3D model: ESOP-8 (KiCad packages3D, STEP)
- 3D model files: `tc618cs-etched.step` / `tc618cs-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tc618cs.step` / `tc618cs.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Shenzhen Fuman datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588917337726992384) (5 pp, sha256 `b938620768612df2`, retrieved 2026-10-09, 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/tc618cs-datasheet.pdf)