# TMCS1107A1BQDRQ1

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

TMCS1107A1BQDRQ1 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 the positive input pin is treated as positive polarity, and VIN+ (relative to GND) is recommended within -420 V to 420 VPK. |
| 2 | IN+ | input | Input current positive pin (second IN+ pin, internally the same node as pin 1); current flowing into the positive input pin is treated as positive polarity, and VIN+ (relative to GND) is recommended within -420 V to 420 VPK. |
| 3 | IN- | input | Input current negative pin; the input current flows from IN+ through the internal 1.8 mΩ lead-frame conductor to IN-, and VIN- (relative to GND) is recommended within -420 V to 420 VPK. |
| 4 | IN- | input | Input current negative pin (second IN- pin, internally the same node as pin 3); the input current flows from IN+ through the internal 1.8 mΩ lead-frame conductor to IN-, and VIN- (relative to GND) is recommended within -420 V to 420 VPK. |
| 5 | GND | power_in | Analog ground for the low-voltage side; the input voltage ratings are referenced to this pin. |
| 6 | NC | unconnected | No internal connection; the pin can withstand capacitive or resistive connection to GND or VS, and shorting it to GND is recommended where acceptable, with an absolute maximum range of GND - 0.3 V to (VS) + 0.3 V. |
| 7 | VOUT | output | Analog output voltage proportional to input current; with RL = 10 kΩ to GND the output swings to within VS - 0.1 V and GND + 10 mV, and the maximum capacitive load is 1 nF without sustained oscillation. |
| 8 | VS | power_in | Analog supply for the low-voltage side; the operating supply range is 3 V to 5.5 V for the TMCS1107A1B/U-Q1 variant (absolute maximum 6 V). |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `TMCS1107A1BQDRQ1`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `tmcs1107a1bqdrq1-etched.step` / `tmcs1107a1bqdrq1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tmcs1107a1bqdrq1.step` / `tmcs1107a1bqdrq1.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 2026-10-10, 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/tmcs1107a1bqdrq1-datasheet.pdf)