CAT4004A: LED Driver, 4-Channel, with 32 Dimming Levels and Reset
Description: The CAT4004A provides four matched low dropout cur...
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.
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
LCD Display Backlight
Digital Still Cameras
Technical Documentation & Design Resources
Product Change Notification
Availability and Samples
Compliance: Pb-free Halide free
Description: LED Driver, 4-Channel, with 32 Dimming Levels and Reset
Package Type: UDFN-8
Package Case Outline: 517AW
Container Type: REEL
Container Qty: 3000
Market Leadtime (weeks):Contact Factory
VI Max (V):
IO Max (mA):
LEDs in Series, Max #:
LEDs in Parallel, Max #: