The TLC59731D is a 3-channel 8-bit easy-to-use PWM LED Sink Driver with single-wire interface. The LED driver provides 8-bit pulse width modulation (PWM) resolution and a simple gamma correction feature. The display repeat rate is achieved at 3.1kHz (typical) with an integrated 6MHz grayscale (GS) clock oscillator. The driver also provides unlimited cascading capability. Output sink current can be set by each external resistor connected to the OUTn terminal in series. It has an internal shunt regulator that can be used for higher VCC power-supply voltage applications.
