onsemi CAT4004BHU2-GT3

LED DRIVER, Programmable, Constant Current, Dimmable, 8-Pad UDFN, T/R 3k - Tape and Reel

LED Driver, Constant Current Programmable with 32 Dimming Levels

The CAT4004B provides four matched low dropout current sources to drive LEDs. The CAT4004B 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. Available in the 4-channel tiny 8-pad UDFN 2 mm x 2 mm with max height of 0.55 mm package.