# TMCS1101A3UQDRQ1

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

TMCS1101A3UQDRQ1 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; the current polarity is positive when current flows into IN+, and VIN+ is limited to ±600 VPK relative to GND (pin 5). |
| 2 | IN+ | input | Input current positive pin, internally paired with pin 1 as a second IN+ terminal; the input voltage is limited to ±600 VPK relative to GND (pin 5). |
| 3 | IN- | input | Input current negative pin; the input voltage is limited to ±600 VPK relative to GND (pin 5). |
| 4 | IN- | input | Input current negative pin, internally paired with pin 3 as a second IN- terminal; the input voltage is limited to ±600 VPK relative to GND (pin 5). |
| 5 | GND | power_in | Analog ground reference for the device; the input voltages VIN+ and VIN- are specified relative to this pin. |
| 6 | NC | unconnected | No connect; the pin can tolerate a capacitive or resistive connection to GND or VS, and a short to GND is recommended where acceptable. |
| 7 | VOUT | output | Analog output voltage, with absolute maximum range GND - 0.3 V to (VS) + 0.3 V; the linear range is limited by swing to supply and ground. |
| 8 | VS | power_in | Analog power supply; for the TMCS1101A3B/U-Q1 variant the operating supply voltage is 3 V to 5.5 V (absolute maximum 6 V with respect to GND). |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `TMCS1101A3UQDRQ1`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `tmcs1101a3uqdrq1-etched.step` / `tmcs1101a3uqdrq1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tmcs1101a3uqdrq1.step` / `tmcs1101a3uqdrq1.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/tmcs1101-q1) (50 pp, sha256 `a522f4167e66b43d`, retrieved 2026-10-09, 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/tmcs1101a3uqdrq1-datasheet.pdf)