# TMCS1107A3UQDRQ1

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

TMCS1107A3UQDRQ1 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 | Positive input current pin on the isolated high-voltage side; input voltage is limited to -420 V to 420 VPK relative to GND, and current flowing into IN+ is treated as positive polarity. |
| 2 | IN+ | input | Positive input current pin on the isolated high-voltage side; input voltage is limited to -420 V to 420 VPK relative to GND, and current flowing into IN+ is treated as positive polarity. |
| 3 | IN- | input | Negative input current pin on the isolated high-voltage side; input voltage is limited to -420 V to 420 VPK relative to GND, and the current path runs between IN+ and IN- through the internal 1.8 mΩ conductor. |
| 4 | IN- | input | Negative input current pin on the isolated high-voltage side; input voltage is limited to -420 V to 420 VPK relative to GND, and the current path runs between IN+ and IN- through the internal 1.8 mΩ conductor. |
| 5 | GND | power_in | Ground reference for the low-voltage isolated side, to which the input voltage limits and the VS supply are referenced. |
| 6 | NC | unconnected | No internal connection; the pin can withstand capacitive or resistive connections to GND or VS, and shorting it to GND is recommended where acceptable. |
| 7 | VOUT | output | Analog output voltage proportional to input current; the output swing is limited to approximately GND + 5 to 10 mV and VS - 0.02 to 0.1 V at RL = 10 kΩ to GND. |
| 8 | VS | power_in | Analog supply pin for the low-voltage side, rated 3 V to 5.5 V for the A1B/U-Q1 to A3B/U-Q1 variants (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: `TMCS1107A3UQDRQ1`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `tmcs1107a3uqdrq1-etched.step` / `tmcs1107a3uqdrq1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tmcs1107a3uqdrq1.step` / `tmcs1107a3uqdrq1.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-q1) (44 pp, sha256 `7f52fb186d147cc2`, retrieved 2026-10-08, 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/tmcs1107a3uqdrq1-datasheet.pdf)