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LK118S

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LANKE Brushed DC Motor Drivers, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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LK118S

LANKE · Brushed DC Motor Drivers · SOP-8

LK118S from LANKE, 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 NC unconnected Not connected; the datasheet marks this pin as floating (悬空).
2 INA input Logic input A; together with INB it selects the H-bridge state (forward, reverse, standby, brake) per the logic table, with VINH min 2.0 V and VINL max 0.8 V.
3 INB input Logic input B; together with INA it selects the H-bridge state (forward, reverse, standby, brake) per the logic table, with VINH min 2.0 V and VINL max 0.8 V.
4 VDD power_in Positive supply pin; recommended operating supply range is 2.2 V to 7.5 V, and absolute maximum VDD is 7.5 V.
5 OUTB output Full-bridge output B; driven by the internal PMOS/NMOS H-bridge, rated for continuous output current up to 1.6 A and peak 3.0 A.
6 AGND power_in Ground pin (analog ground per pin name); the datasheet gives no further limits for this pin.
7 PGND power_in Ground pin (power ground per pin name); the datasheet gives no further limits for this pin.
8 OUTA output Full-bridge output A; driven by the internal PMOS/NMOS H-bridge, rated for continuous output current up to 1.6 A and peak 3.0 A.

Key specifications

Parameter Value
Manufacturer LANKE
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
Supply voltage VDD 2.2 7.5 V 2
Control input voltage VIN 0 V 2
Forward/reverse output current Iout -1600 1600 mA 2
Supply voltage VDD 7.5 V 2
Power dissipation Pd 0.9 W SOP-8 2
Operating temperature Topr -20 85 ℃ 2
Junction temperature Tj 150 ℃ 2
Storage temperature Tstg -55 150 ℃ 2
Hand soldering temperature 350 370 ℃ 2
Peak output current Iop 3 A 2
Maximum continuous output current Ioc 1.6 A 2
ESD human body model ESD-HBM 2000 V 2
High-level input voltage VINH 2 V 3
Low-level input voltage VINL 0.8 V 3
High-level input current IINH 5 20 uA VIN=3V 3
Low-level input current IINL -1 0 uA VIN=0V 3
Circuit off current ICCST 0 1 uA INA=INB=0 3
Operating current ICC 70 100 uA INA=H, INB=L or INA=L, INB=H or INA=H, INB=H 3
Output on-resistance RON 0.45 0.6 Ω VCC=7.5V, Io=±200mA 3
Pull-down resistance RIN 1.5 MΩ 3
Thermal resistance, junction to ambient θJA 130 ℃/W SOP-8 2

CAD (KiCad official)

  • Symbol: LK118S
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: lk118s-etched.step / lk118s-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lk118s.step / lk118s.glb are the bare package body.

Provenance

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

  • Datasheet: LANKE datasheet (5 pp, sha256 78d2ffc011112f3b, 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