The TLC5923 is a 16 channel constant-current sink driver. Each channel has a On/Off state and a 128-step adjustable constant current sink (dot correction). The dot correction adjusts the brightness variations between LED, LED channels and other LED drivers. Both dot correction and On/Off state are accessible via a serial data interface. A single external resistor sets the maximum current of all 16 channels.
●The TLC5923 features two error information circuits. The LED open detection (LOD) indicates a broken or disconnected LED at an output terminal. The thermal error flag (TEF) indicates an overtemperature condition.
● 16 Channels
● Drive Capability
● 0 to 80 mA (Constant-Current Sink)
● Constant Current Accuracy: ±1% (typical)
● Serial Data Interface
● Fast Switching Output: Tr / Tf = 10ns (typical)
● CMOS Level Input/Output
● 30 MHz Data Transfer Rate
● VCC = 3.0 V to 5.5 V
● Operating Temperature = –40°C to 85°C
● LED Supply Voltage up to 17 V
● 32-pin HTSSOP(PowerPAD) and QFN Packages
● Dot Correction
● 7 bit (128 Steps)
● individual adjustable for each channel
● Controlled In-Rush Current
● Error Information
● LOD: LED Open Detection
● TEF: Thermal Error Flag
