component

LK1511B

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by Ray

LANKE Relay / Coil Drivers, SOT23-6. Datasheet-verified pinout, KiCad symbol/footprint/3D.

componentmotor driver icslk1511b
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Datasheet

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Contents

README

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LK1511B

LANKE · Relay / Coil Drivers · SOT23-6

LK1511B from LANKE, in a SOT23-6. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 CE input Pulse-width (one-shot) control input. An external capacitor C_CE tied to this pin sets the output one-shot pulse width: T_one-shot = 1.3 x 10^6 x C_CE (seconds). Logic-level input, VIH >= 1.6 V, VIL <= 0.2*VCC.
2 GND power_in Ground / device reference (0 V). Return path for supply and H-bridge low-side switches.
3 FBC input Forward/Reverse (前进/后退) direction control input. Selects the polarity of the H-bridge drive between OUT1 and OUT2. Logic-level input, VIH >= 1.6 V, VIL <= 0.2*VCC; recognizes 1.8 V logic levels.
4 OUT1 output H-bridge output 1. Push-pull driver leg used to drive one terminal of the IR-CUT filter coil. Recommended output current 0-300 mA; low saturation drop of 0.75 V @ 300 mA (0.45 V @ 200 mA).
5 VCC power_in Supply input, 2.5 V to 5.5 V (absolute max 6.0 V). Standby current < 10 uA for LK1511B. Bypass with a 1 uF capacitor to GND (a 1 ohm resistor or ferrite bead from the rail is recommended).
6 OUT2 output H-bridge output 2. Complementary push-pull driver leg used to drive the other terminal of the IR-CUT filter coil. Recommended output current 0-300 mA; low saturation drop of 0.75 V @ 300 mA.

Key specifications

Parameter Value
Manufacturer LANKE
Package SOT23-6
Category Motor Driver ICs
Pins 6

Ordering variants

Same part, different packaging or reel option.

  • LK1511B
  • LK1511A

CAD (KiCad official)

  • Symbol: LK1511B
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: SOT23-6 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: LANKE datasheet (6 pp, sha256 f29adeb9c2efe83a, retrieved 2026-08-17, 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: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF