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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)
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»Product Change Notification (5)
Product Overview
Product Description
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)
Availability and Samples
Product
Status
Compliance
Description
Package
MSL*
Container
Budgetary Price/Unit
Type
Case Outline
Type
Qty.
CAT4003BSD-GT3 Consult Sales Office
Pb-free
Halide free
LED Driver, Constant Current Programmable, with 32 Dimming Levels SC-88-6 / SC-70-6 419AD 1 Tape and Reel 3000  
CAT4003BTD-GT3 Lifetime
Pb-free
Halide free
LED Driver, Constant Current Programmable, with 32 Dimming Levels TSOT-23-6 419AF 1 Tape and Reel 3000 $0.4933
CAT4003BTS-T3 Lifetime
Pb-free
Halide free
LED Driver, Constant Current Programmable, with 32 Dimming Levels TSOP-6 318G-02 1 Tape and Reel 3000  
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
Market Leadtime (weeks) : Contact Factory
Avnet   (2015-04-20 00:00) : >1K
Digikey   (2015-04-20 00:00) : >1K
Mouser   (2015-04-20 00:00) : >1K
ON Semiconductor   (2015-04-18 00:00) : 66,000
PandS   (2015-04-20 00:00) : >1K
Market Leadtime (weeks) : Contact Factory
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