The TLC5928 is a 16-channel, constant-current sink LED driver. 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.
● 16 Channels, Constant-Current Sink Output with On/Off Control
● 35-mA Capability (Constant-Current Sink)
● 10-ns High-Speed Constant-Current Switching Transient Time
● Low On-Time Error
● LED Power-Supply Voltage up to 17 V
● VCC = 3.0 V to 5.5 V
● Constant-Current Accuracy:
● Channel-to-Channel = ±1%
● Device-to-Device = ±1%
● CMOS Logic Level I/O
● 35-MHz Data Transfer Rate
● 20-ns BLANK Pulse Width
● Readable Error Information:
● LED Open Detection (LOD)
● Pre-Thermal Warning (PTW)
● Operating Temperature: –40°C to +85°C
● APPLICATIONS
● LED Video Displays
● Message Boards
● Illumination
●PowerPAD is a trademark of Texas Instruments, Inc.
●All other trademarks are the property of their respective owners.
