CAT4002A: LED Driver, 2-Channel, with 32 Dimming Levels and Reset

Description: The CAT4002A provides a two matched low dropout cu...
  • The CAT4002A provides a two matched low dropout current sources to drive LEDs. The CAT4002A 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 6-lead TSOT-23 and SC-70.
  • Features
  • 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 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
  • Applications
  • LCD Display Backlight
  • End Products
  • Mobile Phones
  • Digital Still Cameras
  • Technical Documentation & Design Resources
    Product Change Notification
    Availability and Samples
    CAT4002ASD-GT3
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: LED Driver, 2-Channel, with 32 Dimming Levels and Reset
  • Package Type: SC-88-6 / SC-70-6 / SOT-363-6
  • Package Case Outline: 419AD
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • Inventory

  • Market Leadtime (weeks):2 to 4
  • Arrow:0
  • Digikey:>1K
  • Mouser:>1K
  • CAT4002ATD-GT3
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: LED Driver, 2-Channel, with 32 Dimming Levels and Reset
  • Package Type: TSOT-23-6
  • Package Case Outline: 419AF
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • Inventory

  • Market Leadtime (weeks):2 to 4
  • Arrow:0
  • Digikey:>1K
  • Mouser:>1K
  • Newark:<1K
  • ON Semiconductor:30,000
  • Specifications
  • VI Max (V): 5.5 
  • IO Max (mA): 40 
  • LEDs in Series, Max #:
  • LEDs in Parallel, Max #:
  • Package Type: SC-88-6 / SC-70-6 / SOT-363-6  TSOT-23-6 
  • ON Semiconductor Full Web Site