LED Driver for large video displays

Providing LED channels which can operate with an output voltage as low as 0.4V (for 2mA to 100mA LED current), to enable more power-efficient designs, the maximum LED current on the device is set by an external resistor. A high-speed, four-wire serial interface with up to 25MHz clock frequency controls each individual channel using a shift register and latch configuration. A serial output data pin allows multiple devices to be cascaded and programmed via one serial interface.

The CAT4016 also features a thermal shutdown protection function to disable the LED outputs if the die temperature exceeds a set limit. A direct replacement for other popular devices, the CAT4016 is available in a wide range of package options including 24-lead SOIC, TSSOP, QSOP and TQFN (4 x 4mm).