# TMCS1107A3BQDR

**Texas Instruments** · Current Sensors · SOIC-8

TMCS1107A3BQDR from Texas Instruments, in a SOIC-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 | IN+ | input | Input current positive pin, part of isolated current sensing path |
| 2 | IN+ | input | Input current positive pin, part of isolated current sensing path |
| 3 | IN- | input | Input current negative pin, part of isolated current sensing path |
| 4 | IN- | input | Input current negative pin, part of isolated current sensing path |
| 5 | GND | power_in | Analog ground reference |
| 6 | NC | unconnected | No connection; pin can withstand capacitive or resistive connection to GND or VS, recommended to short to GND |
| 7 | VOUT | output | Analog output voltage with 200mV/A sensitivity for A3B variant |
| 8 | VS | power_in | Power supply voltage, 3V to 5.5V operating range |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Magnetic Sensors |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `TMCS1107A3BQDR`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `tmcs1107a3bqdr-etched.step` / `tmcs1107a3bqdr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tmcs1107a3bqdr.step` / `tmcs1107a3bqdr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/tmcs1107) (43 pp, sha256 `37b77023ae7b002b`, retrieved 2026-10-07, 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-4-5-20251001` (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/tmcs1107a3bqdr-datasheet.pdf)