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Contents

README

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TMCS1108A1BQDRQ1

Texas Instruments · Current Sensors · SOIC-8

TMCS1108A1BQDRQ1 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 of the isolated current path; the input current flows from IN+ through the internal 1.8 mΩ lead frame to IN-, and VIN+ is specified relative to GND (pin 5) within -100 V to 100 V recommended and -120 V to 120 V absolute maximum.
2 IN+ input Second positive input current pin, internally tied to pin 1 for the input current path; voltage limits are the same as pin 1, relative to GND (pin 5).
3 IN- input Negative input current pin of the isolated current path; the input current returns through this pin, and VIN- is specified relative to GND (pin 5) within -120 V to 120 V absolute maximum.
4 IN- input Second negative input current pin, internally tied to pin 3 for the input current path; voltage limits are the same as pin 3, relative to GND (pin 5).
5 GND power_in Analog ground reference for the low-voltage side; the IN+ and IN- voltage ratings and the VOUT and VS limits are referenced to this pin.
6 NC unconnected No internal connection; the pin can withstand capacitive or resistive connection to GND or VS, and the datasheet recommends shorting it to GND where acceptable.
7 VOUT output Analog output voltage proportional to the input current, with an absolute maximum range of GND - 0.3 V to VS + 0.3 V and a short-circuit output current of 90 mA as stated in the datasheet.
8 VS power_in Analog supply pin rated 3 V to 5.5 V in recommended operation (absolute maximum 6 V); a 0.1 µF low-ESR decoupling capacitor should be placed between VS and GND as close to the pins as possible.

Key specifications

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

CAD (KiCad official)

  • Symbol: TMCS1108A1BQDRQ1
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: tmcs1108a1bqdrq1-etched.step / tmcs1108a1bqdrq1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tmcs1108a1bqdrq1.step / tmcs1108a1bqdrq1.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (42 pp, sha256 f7171fc700f01799, 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