FEATURES

23. 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

DESCRIPTION

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.