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CAT4003B: LED Driver, Constant Current Programmable, with 32 Dimming Levels

Datasheet: LED Driver, Constant Current Programmable, with 32 Dimming Levels
Rev. 2 (178.0kB)
Product Overview
»View Material Composition
» Product Change Notification
The CAT4003B and CAT4004B provide respectively three and four matched low dropout current sources to drive LEDs. The CAT400XB requires no external RSET resistor. The LED current is internally set to 25 mA when the device is first enabled. 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 input supports the 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 (75 mV at 20 mA) current sinks. Package options are available in the 4-channel tiny 8-pad UDFN 2 mm x 2 mm with a max height of 0.55 mm, and 3- channel in the 6-lead TSOT-23, TSOP and SC-70.
Features   Benefits
     
  • Low Dropout Driver 75 mV at 20 mA
 
  • Can drive LEDs at lower VIN
  • Dimming via 1-wire EZDimTM Interface
 
  • higher resolution dimming
  • 3, 4 LED Current Sinks with Tight Matching
   
  • 32 Dimming Levels
   
  • No Switching Noise
   
  • Shutdown Current less than 1 µA
   
  • 25 mA Max LED Current per Channel
   
  • Thermal Shutdown Protection
   
Applications   End Products
  • LCD Display Backlight
 
  • Mobile Phones
  • Digital Still Cameras
Technical Documentation & Design Resources
Data Sheets (1) Package Drawings (3)
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
CAT4003BSD-GT3 Consult Sales Office
Pb-free
Halide free
CAT4003B SC-88-6 / SC-70-6 / SOT-363-6 419AD 1 260 Tape and Reel 3000  
CAT4003BTD-GT3 Obsolete
Pb-free
Halide free
CAT4003B TSOT-23-6 419AF 1 260 Tape and Reel 3000  
CAT4003BTS-T3 Obsolete
Pb-free
Halide free
CAT4003B TSOP-6 318G-02 1 260 Tape and Reel 3000  
Market Leadtime (weeks) : Contact Factory
ON Semiconductor   (2020-09-02 00:00) : 39,000
Market Leadtime (weeks) : Contact Factory
PandS   (2020-09-14 00:00) : >1K
Market Leadtime (weeks) : Contact Factory
Case Outlines
419AF    419AD    318G-02   
Previously Viewed Products
Clear List

New Products

NCV7691  NCV7692  Current Controllers for Automotive LED Lighting

  • Constant current output for LED string drive
  • Dedicated dimming feature via PWM input
  • Multiple LED string control with one controller

NCV7685  12-Channel Linear Current Driver for Automotive LED Lighting

  • Twelve current sources with global current setting up to 60 mA and diagnostics
  • Independent PWM duty cycle control via I2C for each channel
  • Operates as stand-alone or MCU-controlled, and with optional external MOSFET ballast transistor

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