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CAT4004A: LED Driver, 4-Channel, with 32 Dimming Levels and Reset

Datasheet: Constant Current LED Driver with 32 Dimming Levels and Rset
Rev. 2 (165.0kB)
Product Overview
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The CAT4004A provides four matched low dropout current sources to drive LEDs. The CAT400XA uses an external resistor RSET to set the current in the LED channels. Each LED channel includes an individual control loop allowing the device to handle a wide range of LED forward voltages while still maintaining tight current matching.

The EN/DIM logic inputs supports device enable and a digital dimming interface for setting the LED channel current with 32 linear dimming levels.

LEDs can be powered directly from a Lithium-ion battery due to the low dropout (50 mV at 20 mA) current sinks. The device is available in the tiny 8-pad UDFN 2 mm x 2 mm package with a max height of 0.55 mm.
Features   Benefits
     
  • Low Dropout Driver 50 mV at 20 mA
 
  • Can drive LEDs at lower supply voltage VIN
  • Dimming via 1-wire EZDim Interface
 
  • Higher Resolution Dimming
  • 2 and 4 LED Current Sinks with Tight Matching
   
  • 32 Dimming Levels
   
  • No Switching Noise
   
  • Shutdown Current less than 1 µA
   
  • LED Current set by External Resistor
   
  • Thermal Shutdown Protection
   
  • These Devices are Pb-Free, Halogen Free/BFR Free and are RoHS Compliant
   
Applications
  • LCD Display Backlight
  • Digital Still Cameras
  • Cellular Phones
  • Handheld Devices
Technical Documentation & Design Resources
Data Sheets (1) Package Drawings (1)
Availability & Samples
Specifications
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
CAT4004AHU2-GT3 Active
Pb-free
Halide free
CAT4004A UDFN-8 517AW 1 260 Tape and Reel 3000 $0.4
Market Leadtime (weeks) : 4 to 8
Avnet   (2020-08-19 00:00) : >10K

Product
Description
Pricing ($/Unit)
Compliance
Status
VI Max (V)
IO Max (mA)
LEDs in Series, Max #
LEDs in Parallel, Max #
Package Type
CAT4004AHU2-GT3  
 $0.4 
Pb
H
 Active   
5.5
40
1
4
UDFN-8
Case Outlines
517AW   
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