CAT4109: LED Driver, RGB, 3-Channel

Overview
Specifications
Packages
Applications
Datasheet: LED Driver, RGB, 3-Channel
Rev. 4 (151kB)
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Product Overview
Product Description
The CAT4109 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 respectivelly 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.

Thermal shutdown protection is incorporated in the device to disable the LED outputs whenever the die temperature exceeds 150°C.
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
Applications   End Products
  • LCD Backlighting
 
  • Architectural Lighting
Technical Documentation & Design Resources
Data Sheets (1) Package Drawings (1)
Availability and Samples
Product
Status
Compliance
Description
Package
MSL*
Container
Budgetary Price/Unit
Type
Case Outline
Type
Qty.
CAT4109V-GT2 Active
Pb-free
Halide free
LED Driver, RGB, 3-Channel SOIC-16 751BG 1 Tape and Reel 2000 $0.8666
Moisture Sensitivity level (MSL) for surface mount devices (lead free measured at 260°C reflow, non lead free at 235°C reflow)
Market Leadtime (weeks) :
P&S   (2014-04-15 00:00) : >1K
Datasheet: LED Driver, RGB, 3-Channel
Rev. 4 (151kB)
»View Material Composition
»Product Change Notification (4)
Product Overview

Product Compliance Status Description Topology VI Min (V) VI Max (V) VO Max (V) IO Max (mA) fSW Typ (kHz) LEDs in Series, Max # LEDs in Parallel, Max # Package Type
 Pb-free 
 Halide free 
 Active     LED Driver, RGB, 3-Channel   Linear   3   25   -   525     7   3   SOIC-16 
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