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CAT4104V-GT3

Public Made by Adom

by adom

onsemi LED Drivers, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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CAT4104V-GT3

onsemi · LED Drivers · SOIC-8

CAT4104V-GT3 from onsemi, in a SOIC-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 LED1 output LED1 cathode terminal provides a regulated LED sink current (up to 175 mA per channel), is rated up to 25 V with outputs off, and becomes high impedance in shutdown.
2 LED2 output LED2 cathode terminal provides a regulated LED sink current (up to 175 mA per channel), is rated up to 25 V with outputs off, and becomes high impedance in shutdown.
3 LED3 output LED3 cathode terminal provides a regulated LED sink current (up to 175 mA per channel), is rated up to 25 V with outputs off, and becomes high impedance in shutdown.
4 LED4 output LED4 cathode terminal provides a regulated LED sink current (up to 175 mA per channel), is rated up to 25 V with outputs off, and becomes high impedance in shutdown.
5 GND power_in Ground reference for the device, which must be connected to the PCB ground plane.
6 EN/PWM input Device enable and PWM dimming input with guaranteed logic high at 1.3 V and logic low at 0.4 V, where holding it low for 4 ms typical puts the device into zero-current shutdown.
7 VIN power_in Supply pin for the device, specified at 3.0 to 5.5 V, and all LED channels are disabled when the supply falls below the undervoltage threshold (2.0 V).
8 RSET passive LED current set pin connected to an external resistor to GND, regulated to 1.2 V, with LED channel current equal to 100 times the RSET current.

Key specifications

Parameter Value
Manufacturer onsemi
Package SOIC-8
Category LED Drivers
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
LED Current Accuracy ILED-ACC -2 2 % I_LED vs I_LEDNOM 2
LED Channel Matching ILED-DEV -5 1 5 % I_LED vs I_LEDAVG (Note 3) 2
RSET Pin Voltage VRSET 1.17 1.2 1.23 V 2
Quiescent Current IQ 0.6 6 mA No LED, RSET = Float / No LED, RSET = 770 Ω 2
Shutdown Current IQSHDN 1 A VEN = 0 V 2
EN/PWM Logic High Level VHI 1.3 V 2
EN/PWM Logic Low Level VLO 0.4 V 2
EN/PWM low time TLO 1 s 3
EN/PWM low time to shutdown delay TPWRDWN 4 8 ms 3
Input voltage VIN VIN -0.3 6 V VIN, RSET, EN/PWM voltages 2
RSET and EN/PWM voltages -0.3 6 V VIN, RSET, EN/PWM voltages 2
LED1 to LED4 voltages -0.3 25 V LED1, LED2, LED3, LED4 voltages 2
Storage Temperature Range -65 160 C 2
Junction Temperature Range -40 150 C 2
Lead Temperature 300 C 2
Supply voltage VIN VIN 3 5.5 V 2
LED pin voltage, outputs off 25 V Voltage applied to LED1 to LED4, outputs off 2
LED pin voltage, outputs on 6 V Voltage applied to LED1 to LED4, outputs on (Note 2) 2
Ambient Temperature Range -40 85 C 2
LED current per LED pin ILED 10 175 mA ILED per LED pin 2
Dropout Voltage VDOUT 400 mV ILED = 175 mA 2
EN/PWM Internal pull-down resistance REN/PWM 200 k 2
Thermal Shutdown TSD 150 C 2
Thermal Hysteresis THYS 20 C 2
RSET to LED Current gain ratio ILED/IRSET 100 25 mA LED current 2
Undervoltage lockout threshold VUVLO 2 V 2
Turn-On time, EN/PWM rising to ILED from shutdown TPS 1.5 s ILED = 175 mA 3
Turn-On time, EN/PWM rising to ILED from shutdown TPS 1.3 s ILED = 80 mA 3
Turn-On time, EN/PWM rising to ILED TP1 600 ns ILED = 175 mA 3
Turn-Off time, EN/PWM falling to ILED TP2 400 ns ILED = 175 mA 3
Turn-Off time, EN/PWM falling to ILED TP2 300 ns ILED = 80 mA 3
LED rise time TR 700 ns ILED = 175 mA 3
LED rise time TR 440 ns ILED = 80 mA 3
LED fall time TF 360 ns ILED = 175 mA 3
LED fall time TF 320 ns ILED = 80 mA 3
EN/PWM high time THI 5 s 3
Thermal resistance junction to ambient, SOIC-8 θJA 160 °C/W Double-sided PCB with two square inches of copper for heat spreading 10

CAD (KiCad official)

  • Symbol: CAT4104V-GT3
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: cat4104v-gt3-etched.step / cat4104v-gt3-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cat4104v-gt3.step / cat4104v-gt3.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (14 pp, sha256 ecf8ead93f20c320, retrieved 2026-10-16, tier: lcsc)
  • 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