SIN

SCLK

LAT

BLANK

SOUT

GND

VCC

Device 1

OUT0

OUT15

VCC

VLED

VLED

DATA

SCLK

LAT

BLANK

R

IREF

IREF

Controller

3

¼

COM1

COM0

SW

COM1

VLED

¼

COMn

SW

COMn

SW

COM0

SIN

SCLK

LAT

BLANK

SOUT

GND

VCC

Device n

OUT0

OUT15

VCC

R

IREF

IREF

¼

+

TLC59283

www.ti.com

SBVS199A – JUNE 2012 – REVISED JUNE 2012

16-Channel, Constant-Current LED Driver with Pre-Charge FET

Check for Samples: TLC59283

1

FEATURES

2

•

16-Channel, Constant-Current Sink Output

APPLICATIONS

with On and Off Control

•

Video Displays

•

Constant-Current Sink Capability:

•

Message Boards

•

LED Power-Supply Voltage: Up to 10 V

DESCRIPTION

•

The TLC59283 is a 16-channel, constant-current sink

light-emitting diode (LED) driver. Each channel can

•

Constant-Current Accuracy:

be

individually

controlled

with

a

simple

serial

–

Channel-to-Channel:

communications protocol that is compatible with 3.3-V

±1.4% (typ), ±3% (max)

or 5-V CMOS logic levels, depending on the

–

Device-to-Device: ±2% (typ), ±4% (max)

operating VCC. When the serial data buffer is loaded,

a LAT rising edge transfers the data to the OUTn

•

CMOS Logic Level I/O

outputs. The BLANK pin can be used to turn off all

•

Data Transfer Rate: 35 MHz

OUTn outputs during power-on and output data

•

BLANK Pulse Width: 50 ns

latching to prevent unwanted image displays during

these times. The constant-current value of all 16

•

Pre-Charge FET for Ghosting Reduction

channels is set by a single external resistor.

•

Grouped Switching Delay for Noise Reduction

Each constant-current output has a pre-charge field-

•

Operating Temperature: –40°C to +85°C

effect transistor (FET) that can reduce ghosting on

the multiplexing (dynamic) drive LED display. Multiple

TLC59283s can be cascaded together to control

additional LEDs from the same processor.

Typical Application Circuit (Multiple Daisy-Chained TLC59283s)

1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2012, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.