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MS7899

MSKSEMI · Brushed DC Motor Drivers · SOP-8

MS7899 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 that, together with FI, selects forward, reverse, brake or stop mode; input high level must be at least 2.2 V and input low level at most 0.7 V, with inputs rated -0.3 V to 6.5 V.
2 FI input Forward logic input that, together with BI, selects forward, reverse, brake or stop mode; input high level must be at least 2.2 V and input low level at most 0.7 V, with inputs rated -0.3 V to 6.5 V.
3 GND power_in Ground reference; all voltage values in the datasheet are referenced to this terminal.
4 VCC power_in Motor/power supply input with a recommended operating range of 3 V to 30 V (absolute maximum 33 V), which also has an undervoltage lockout threshold of 1.9 V to 2.8 V (typ. 2.2 V).
5 FO output Forward H-bridge output (bonded together with pin 6) that delivers up to 6.0 A continuous output current under the recommended conditions.
6 FO output Forward H-bridge output (bonded together with pin 5) that delivers up to 6.0 A continuous output current under the recommended conditions.
7 BO output Backward H-bridge output (bonded together with pin 8) that delivers up to 6.0 A continuous output current under the recommended conditions.
8 BO output Backward H-bridge output (bonded together with pin 7) that delivers up to 6.0 A continuous output current under the recommended conditions.

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
Power supply voltage VCC 33 V 3
Output continuous current lout 8 A 3
Operating temperature Top -25 85 ℃ 3
Storage temperature Tstg -55 150 ℃ 3
Operating voltage range VCC 3 30 V 4
Input signal voltage INH and INL VINH -0.3 6.5 V 4
Output continuous current VOUT_X 0 6 A 4
Logic input frequency FIN_X 30 KHz 4
Operating voltage Vopr 3 33 V 4
Standby current lCCST 1 uA VCC=12V,FI=BI=0V,noload 4
Undervoltage lockout (rising) UVLO 1.9 2.2 2.8 V VCC rising 4
Input high voltage VINH 2.2 V 4
Input low voltage 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: MS7899
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: ms7899-etched.step / ms7899-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ms7899.step / ms7899.glb are the bare package body.

Provenance

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

  • Datasheet: MSKSEMI datasheet (10 pp, sha256 5c9a28f2dc143255, 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