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.