# TMCS1100A4QDR

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

TMCS1100A4QDR 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; current flowing into IN+ is defined as positive, and VIN+ is specified from -600 V to 600 V relative to GND (pin 5). |
| 2 | IN+ | input | Second input current positive pin, internally connected to pin 1 as part of the isolated input conductor; VIN+ is specified from -600 V to 600 V relative to GND (pin 5). |
| 3 | IN- | input | Input current negative pin; VIN- is specified from -600 V to 600 V relative to GND (pin 5). |
| 4 | IN- | input | Second input current negative pin, internally connected to pin 3 as part of the isolated input conductor; VIN- is specified from -600 V to 600 V relative to GND (pin 5). |
| 5 | GND | power_in | Ground reference for the low-voltage side; VIN+, VIN-, VREF and VOUT are all referenced to this pin. |
| 6 | VREF | power_in | Zero-current output voltage reference input that sets VOUT at zero input current; absolute maximum range is GND - 0.3 V to (VS) + 0.3 V. |
| 7 | VOUT | output | Analog output voltage proportional to the input current; the linear output swing is limited relative to VS and GND, and absolute maximum range is GND - 0.3 V to (VS) + 0.3 V. |
| 8 | VS | power_in | Low-voltage analog supply; for TMCS1100A4 the recommended operating supply is 4.5 V (min) to 5.5 V (max) with 5 V nominal, and the absolute maximum supply is 6 V. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `TMCS1100A4QDR`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `tmcs1100a4qdr-etched.step` / `tmcs1100a4qdr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tmcs1100a4qdr.step` / `tmcs1100a4qdr.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/tmcs1100) (47 pp, sha256 `35f86b5c16bbe7f8`, retrieved 2026-10-11, 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/tmcs1100a4qdr-datasheet.pdf)