The TLC5925 is designed for LED displays and LED lighting applications. The TLC5925
contains a 16-bit shift register and data latches, which convert serial input data into parallel
output format. At the TLC5925 output stage, 16 regulated-current ports provide uniform and constant
current for driving LEDs within a wide range of VF variations. Used in system design for LED
display applications (such as, LED panels), the TLC5925 provides great flexibility and device
performance. Users can adjust the output current from 3 mA to 45 mA through an external resistor,
Rext, which gives flexibility in controlling the light intensity of LEDs.
TLC5925 is designed for up to 17 V at the output port. The high clock frequency, 30 MHz, also
satisfies the system requirements of high-volume data transmission.
The serial data is transferred into TLC5925 via SDI, shifted in the shift register, and
transferred out via SDO. LE can latch the serial data in the shift register to the output latch.
OE enables the output drivers to sink current.