component

OC7141

Public Unreviewed

by Ray

OCX LED Drivers, SOT-23-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.

componentled-drvoc7141
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity

3D Model

Open in new tab ↗

Symbol & Footprint

Schematic Symbol

Open full view ↗

PCB Footprint

Open full view ↗
Contents

README

markdown

OC7141

OCX · LED Drivers · SOT-23-5

OC7141 from OCX, in a SOT-23-5. 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 GND power_in Chip ground reference. Connect to system ground and route the CS sense-resistor return trace short and wide to this pin to minimize output-current error.
2 CS input LED current-set pin. Sense voltage V_CS is regulated to a typical 100 mV (96-104 mV); output current I_LED = 100 mV / R_CS. Use a 1% resistor for accuracy.
3 VDD power_in Chip supply, 2.5 V to 6 V. Bypass with 1-4.7 µF close to the pin. For higher rail voltages, clamp with an external Zener so VDD stays ≤ 6 V (supply rail extendable to 400 V+). Quiescent current typ. 60 µA.
4 DRV output Gate-drive output for the external NMOS pass transistor. The internal error amplifier modulates DRV so that V_CS = 100 mV, regulating LED current from 10 mA up to 3 A.
5 DIM input PWM dimming input. Logic high (≥0.7·VDD) enables normal LED output; logic low (≤0.3·VDD) turns the LED off. Supports PWM up to 10 kHz; ≤1 kHz recommended for best linearity.

Key specifications

Parameter Value
Manufacturer OCX
Package SOT-23-5
Category LED-drv
Pins 5

CAD (KiCad official)

  • Symbol: OC7141
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: OCX datasheet (6 pp, sha256 6c0efd194ffe82d5, 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