¼

¼

¼

SIN

SCLK

LAT

BLANK

SOUT

GND

VCC

TLC59282

IC1

OUT0

OUT15

VCC

¼

¼

VLED

VLED

¼

¼

SIN

SCLK

LAT

BLANK

R

IREF

IREF

SOUT

TLC59282

ICn

OUT0

OUT15

DATA

SCLK

BLANK

¼

VLED

VLED

R

IREF

IREF

Controller

GND

VCC

VCC

3

LAT

TLC59282

www.ti.com

SBVS152C

– DECEMBER 2010 – REVISED OCTOBER 2011

16-Channel, Constant-Current LED Driver with 4-Channel Grouped Delay

Check for Samples: TLC59282

1

FEATURES

APPLICATIONS

2

•

16 Channels, Constant-Current Sink Output

•

Video Displays

with On/Off Control

•

Message Boards

•

Capability (Constant-Current Sink):

•

Illumination

•

LED Power-Supply Voltage up to 17 V

DESCRIPTION

The TLC59282 is a 16-channel, constant-current sink

•

driver. Each channel can be individually controlled via

•

Constant-Current Accuracy:

a simple serial communications protocol that is

– Channel-to-Channel = ±0.6% (typ),

compatible with 3.3 V or 5 V CMOS logic levels,

±2% (max)

depending on the operating VCC. Once the serial

data buffer is loaded, a rising edge on LATCH

– Device-to-Device = ±1% (typ), ±3% (max)

transfers the data to the LEDx outputs. The BLANK

•

Low Saturation Voltage: 0.31 V at 20 mA (typ)

pin can be used to turn off all OUTn outputs during

power-on

and

output

data

latching

to

prevent

unwanted image displays during these times. The

•

CMOS Logic Level I/O

constant-current value of all 16 channels is set by a

•

Data Transfer Rate: 35 MHz

single external resistor. Multiple TLC59282s can be

•

BLANK Pulse Width: 30 ns

cascaded together to control additional LEDs from the

•

Four-Channel Grouped Delay for

same processor.

Noise Reduction

•

Operating Temperature:

–40°C to +85°C

Typical Application Circuit (Multiple Daisy-Chained TLC59282s)

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

© 2010–2011, 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.