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TLC59281 Datasheet, PDF (1/19 Pages) Texas Instruments – 16-Channel, Constant-Current LED Driver
TLC59281
www.ti.com
16-Channel, Constant-Current LED Driver
Check for Samples: TLC59281
SBVS139 – JANUARY 2010
FEATURES
1
•2 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
• Operating Temperature: –40°C to +85°C
APPLICATIONS
• LED Video Displays
• Message Boards
• Illumination
DESCRIPTION
The TLC59281 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.
VLED
VLED
¼
¼
VLED
VLED
¼
Controller
DATA
SCLK
LAT
BLANK
ERROR
READ
RIREF
¼
¼
¼ OUT0
OUT15
SIN
SCLK
SOUT
VCC
LAT
BLANK
TLC59281
IREF
IC1
VCC
GND
RIREF
¼
¼ OUT0
OUT15
SIN
SCLK
SOUT
VCC
LAT
BLANK
VCC
IREF
ICn
GND
3
Typical Application Circuit (Multiple Daisy-Chained TLC59281s)
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.
All trademarks are the property of their respective owners.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2010, Texas Instruments Incorporated