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CAT4004A - Constant Current LED Driver

Download the CAT4004A datasheet PDF. This datasheet also covers the CAT4002A variant, as both devices belong to the same constant current led driver family and are provided as variant models within a single manufacturer datasheet.

General Description

matched low dropout current sources to drive LEDs.

The CAT400XA uses an external resistor RSET to set the current in the LED channels.

Key Features

  • 2 and 4 LED Current Sinks with Tight Matching.
  • 32 Dimming Levels.
  • Low Dropout Driver 50 mV at 20 mA.
  • No Switching Noise.
  • Shutdown Current less than 1 mA.
  • LED Current set by External Resistor.
  • Dimming via 1.
  • wire EZDim Interface.
  • Thermal Shutdown Protection.
  • 6.
  • lead SC.
  • 70, and 8.
  • pad UDFN 2 mm x 2 mm Packages.
  • These Devices are Pb.
  • Free, Halogen Free/BFR Free and are RoHS.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (CAT4002A-ONSemiconductor.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number CAT4004A
Manufacturer onsemi
File Size 278.57 KB
Description Constant Current LED Driver
Datasheet download datasheet CAT4004A Datasheet

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Other Datasheets by onsemi

Part Number Description
CAT4004B Constant Current Programmable LED Driver
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CAT4002B Constant Current Programmable LED Driver
CAT4003B Constant Current Programmable LED Driver
CAT4008 8-Channel Constant Current LED Driver

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
Constant Current LED Driver with 32 Dimming Levels and Rset CAT4002A, CAT4004A Description The CAT4002A and CAT4004A provide respectively two and 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.