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Contents

README

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TMI8261SP-MS

MSKSEMI · Brushed DC Motor Drivers · SOP-8

TMI8261SP-MS from MSKSEMI, in a SOP-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 BI input Backward (reverse) logic input with VIH of at least 2.2 V and VIL of at most 0.7 V; it must stay low or high-impedance until VCC has powered up and a 3 ms delay (tD) has elapsed.
2 FI input Forward logic input with VIH of at least 2.2 V and VIL of at most 0.7 V; it must stay low or high-impedance until VCC has powered up and a 3 ms delay (tD) has elapsed, and its input voltage is limited to -0.3 V to 18 V.
3 GND power_in Ground terminal; all voltages in the datasheet are referenced to this pin.
4 VCC power_in Motor and logic supply, with an operating range of 3.0 V to 18 V and an absolute maximum of 20 V; the undervoltage lockout rising threshold is 1.9 V to 2.8 V (2.2 V typical).
5 FO output Forward H-bridge motor output (one of the two FO pins); the recommended continuous output current is up to 5.0 A, and the absolute maximum output current is 9.0 A.
6 FO output Forward H-bridge motor output (second FO pin, listed together with pin 5); the recommended continuous output current is up to 5.0 A, and the absolute maximum output current is 9.0 A.
7 BO output Backward H-bridge motor output (one of the two BO pins); the recommended continuous output current is up to 5.0 A, and the absolute maximum output current is 9.0 A.
8 BO output Backward H-bridge motor output (second BO pin, listed together with pin 7); the recommended continuous output current is up to 5.0 A, and the absolute maximum output current is 9.0 A.

Key specifications

Parameter Value
Manufacturer MSKSEMI
Package SOP-8
Category Motor Driver ICs
Pins 8

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Operating voltage (recommended) VCC 3 18 V TA=25℃ 4
Input signal voltage INH and INL VINH -0.3 18 V TA=25℃ 4
Output continuous current VOUT_X 0 5 A Based on 40mm2 single-sided PCB, FR4 PCB (1 oz.) 4
Logic input frequency FIN_X 30 KHz TA=25℃ 4
Supply voltage VCC 20 V 3
Output continuous current lout 9 A 3
Operating temperature Top -25 85 ℃ 3
Storage temperature Tstg -55 150 ℃ 3
Operating voltage Vopr 3 18 V TA=25℃ unless otherwise specified 4
Standby current lCCST 1 uA VCC=12V,FI=BI=0V,noload 4
Undervoltage lockout (VCC rising) UVLO 1.9 2.2 2.8 V VCC rising 4
Input high level VINH 2.2 V 4
Input low level VINL 0.7 V 4
Input high-level current IINH 110 200 uA VCC = 12V,VIN = 5V 4
Input low-level current IINL 1 uA VCC = 12V,VIN= 0V 4

CAD (KiCad official)

  • Symbol: TMI8261SP-MS
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: tmi8261sp-ms-etched.step / tmi8261sp-ms-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tmi8261sp-ms.step / tmi8261sp-ms.glb are the bare package body.

Provenance

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

  • Datasheet: MSKSEMI datasheet (9 pp, sha256 bf23f9718043bf38, retrieved 2026-10-18, 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