The STP16C596 is a monolithic, medium-voltage, low current power 16-bit shift register designed for LED panel displays. The STP16C596 contains a 16-bit serial-in, parallel-out shift register that feeds a 16-bitD-type storage register. In the output stage, sixteen regulated current sources are designed to provide 15-120mA constant current to drive the LEDs. The serial output change state on the failing edges of clock, this special feature will provide an improved performance of the application when the clock signal is skewed because the daisy chain is too long.

Through an external resistor, users may adjust the STP16C596 output current, controlling in this way the light intensity of LEDs. The STP16C596 guarantees a 16V output driving capability, allowing users to connect more LEDs in series. The high clock frequency, 25 MHz, also satisfies the system demand for high volume data transmission. Compared with a standard TSSOPpackage, the TSSOP exposed pad increases heat dissipation capability by a 2.5 factor.