CAT4016

www.datasheet4u.com CAT4016 16-Channel Constant Current LED Driver FEATURES „ 16 Constant current-sink channels „ Serial interface up to 25MHz clock frequency „ 3V to 5.5V logic supply „ LED current range from 2mA to 100mA „ LED current set by external RSET resistor „ 300mV LED dropout at 30mA „ Thermal shutdown protection „ Available in RoHS-compliant 24-lead SOIC, TSSOP, QSOP, and 4 x 4mm TQFN packages DESCRIPTION The CAT4016 is a 16 channel constant current driver for LED billboard and other general display applications. LED channel currents are programmed together via an external RSET resistor. Low output voltage operation on the LED channels as low as 0.4V (for 2 to 100mA LED current) allows for more power efficient designs. A high-speed 4-wire serial interface of up to 25MHz clock frequency controls each individual channel using a shift register and latch configuration. A serial output data pin (SOUT) allows multiple devices to be cascaded and programmed via one serial interface. The device also includes a blanking control pin (BLANK) that can be used to disable all channels independently of the interface. Thermal shutdown protection is incorporated in the device to disable the LED outputs if the die temperature exceeds a set limit. The device is available in the 24-lead SOIC, TSSOP, QSOP and the compact TQFN 4 x 4mm packages. APPLICATION „ Billboard Display „ Marquee Display „ Instrument Display „ General Purpose Display For Ordering Information details, see page ...