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CAT4103: LED Driver, RGB, 3-Channel

Datasheet: 3-Channel Constant-Current RGB LED Driver
Rev. 1 (156.0kB)
»View Material Composition
»Product Change Notification (4)
Product Overview
Product Description
The CAT4103 is a 3-channel, linear based constant-current LED driver designed for RGB LED control, requiring no inductor and provides a low noise operation. 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.

A high-speed 4-wire 25 MHz serial interface controls each individual channel using a shift register and latch configuration. Output data pins allow multiple devices to be cascaded and programmed via one serial interface with no need for external drivers or timing considerations. The device also includes a blanking control pin (BIN) that can be used to disable all channels independently of the interface.

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 rated to 25 V
  • LED current to 175 mA per channel set by separate external resistors
  • High-speed 25 MHz 4-wire serial interface
  • Buffered output drivers to ensure data integrity
  • Cascadable devices
  • Low dropout current source (0.4 V at 175 mA)
  • 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) Evaluation Board Documents (5)
Package Drawings (1)  
Evaluation/Development Tool Information
Product Status Compliance Short Description Action
CAT4103AGEVB Active
Pb-free
3-Channel Constant-Current LED Driver Evaluation Board
Avnet (2015-07-09) : 1
Mouser (2015-07-09) : 2
Availability and Samples
Product
Status
Compliance
Description
Package
MSL*
Container
Budgetary Price/Unit
Type
Case Outline
Type
Qty.
CAT4103V-GT2 Lifetime
Pb-free
Halide free
LED Driver, RGB, 3-Channel SOIC-16 751BG 1 Tape and Reel 2000  
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) : Contact Factory
PandS   (2015-07-09) : >1K
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