TEXAS INSTRUMENTS TLC5928PWPR. 芯片, LED驱动器, 恒流, 16通道
The is a 16-channel Constant Current LED Sink Driver without LED open detection. Each channel can be turned on/off by writing serial data to an internal register. The constant-current value of all 16 channels is set by a single external resistor. The TLC5928 has two error detection circuits: one for LED open detection LOD and one for a pre-thermal warning PTW. LOD detects a broken or disconnected LED and LEDs shorted to GND while the constant-current output is on. PTW indicates a high temperature condition. The constant-current values are determined by an external resistor RIREF placed between IREF and GND. When BLANK is low, the corresponding output is turned on if the data in the on/off control data latch are "1" and remains off if the data are "0". When BLANK is high, all outputs are forced off.
IC can be damaged by ESD. We recommend that all ICs be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.