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CAV4109 - 3-Channel Constant-Current RGB LED Driver

General Description

The CAT4109/CAV4109 is a 3 channel constant

driver, requiring no inductor.

LED channel currents up to 175 mA are programmed independently via separate external resistors.

Key Features

  • 3 Independent Current Sinks up to 175 mA rated 25 V.
  • LED Current Set by External Low Power Control Resistors.
  • Individual PWM Control per Channel.
  • Low Dropout Current Source (0.4 V at 175 mA).
  • Output Enable Input for Dimming.
  • “Zero” Current Shutdown Mode.
  • 3 V to 5.5 V Logic Supply.
  • Thermal Shutdown Protection.
  • 16.
  • lead SOIC Package.
  • CAV Prefix for Automotive and Other.

📥 Download Datasheet

Datasheet Details

Part number CAV4109
Manufacturer onsemi
File Size 231.57 KB
Description 3-Channel Constant-Current RGB LED Driver
Datasheet download datasheet CAV4109 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
3-Channel Constant-Current RGB LED Driver with Individual PWM Dimming CAT4109, CAV4109 Description The CAT4109/CAV4109 is a 3−channel constant−current LED driver, requiring no inductor. LED channel currents up to 175 mA are programmed independently via separate external resistors. Low output voltage operation of 0.4 V at 175 mA allows for more power efficient designs across wider supply voltage range. The three LED pins are compatible with high voltage up to 25 V supporting applications with long strings of LEDs. Three independent control inputs PWM1, PWM2, PWM3, control respectively LED1, LED2, LED3 channels. The device also includes an output enable (OE) control pin to disable all three channels independently of the PWMx input states.