1FEATURES
23. 16 Channels
. 12-Bit (4096 Steps) Grayscale PWM Control
. Dot Correction
. 6-Bit (64 Steps)
. Drive Capability (Constant-Current Sink)
. 0 mA to 80 mA (V CC ≤ 3.6 V)
. 0 mA to 120 mA (VCC > 3.6 V)
. LED Power-Supply Voltage up to 17 V
. V CC = 3.0 V to 5.5 V
. Serial Data Interface
. Controlled Inrush Current
. 30-MHz Data Transfer Rate
. CMOS Level I/O
. Error Information
. LOD: LED Open Detection
. TEF: Thermal Error Flag

APPLICATIONS
. Monocolor, Multicolor, Full-Color LED Displays
. LED Signboards
. Display Back-Lighting

DESCRIPTION
The TLC59401 is a 16-channel, constant-current sink,
LED driver. Each channel has an individually
adjustable 4096-step grayscale PWM brightness
control and a 64-step constant-current sink (dot
correction). The dot correction adjusts the brightness
variations between LED channels and other LED
drivers. Both grayscale control and dot correction are
accessible via a serial interface. A single external
resistor sets the maximum current value of all 16
channels.
The TLC59401 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 over-temperature
condition.