Driver. TLC5928 Datasheet

TLC5928 Datasheet PDF


Part

TLC5928

Description

16-Channel Constant-Current LED Driver

Manufacture

etcTI

Page 30 Pages
Datasheet
Download TLC5928 Datasheet


TLC5928 Datasheet
TLC5928
www.ti.com
SBVS120E JULY 2008 REVISED JANUARY 2011
16-Channel, Constant-Current LED Driver with LED Open Detection
Check for Samples: TLC5928
FEATURES
1
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.
VLED
VLED
¼
¼
VLED
VLED
¼
Controller
DATA
SCLK
LAT
BLANK
ERROR
READ
RIREF
¼¼
¼OUT0
OUT15
SIN
SCLK
SOUT
VCC
LAT
BLANK
TLC5928
IREF
IC1
VCC
GND
RIREF
¼
¼OUT0
OUT15
SIN
SCLK
SOUT
VCC
LAT
BLANK
TLC5928
IREF
ICn
VCC
GND
3
Typical Application Circuit (Multiple Daisy-Chained TLC5928s)
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.
PowerPAD is a trademark of Texas Instruments, Inc.
2
All other trademarks are the property of their respective owners.
3
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.
© 20082011, Texas Instruments Incorporated

TLC5928 Datasheet
TLC5928
SBVS120E JULY 2008 REVISED JANUARY 2011
www.ti.com
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
PRODUCT
TLC5928
TLC5928
TLC5928
TLC5928
PACKAGE/ORDERING INFORMATION(1)
PACKAGE-LEAD
ORDERING NUMBER
SSOP-24/QSOP-24
TLC5928DBQR
TLC5928DBQ
TSSOP-24
TLC5928PWR
TLC5928PW
HTSSOP-24 PowerPAD
TLC5928PWPR
TLC5928PWP
QFN-24
TLC5928RGER
TLC5928RGE
TRANSPORT MEDIA, QUANTITY
Tape and Reel, 2500
Tube, 50
Tape and Reel, 2000
Tube, 60
Tape and Reel, 2000
Tube, 60
Tape and Reel, 3000
Tape and Reel, 250
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or visit the
device product folder at www.ti.com.
ABSOLUTE MAXIMUM RATINGS(1)(2)
Over operating free-air temperature range, unless otherwise noted.
PARAMETER
VCC
IOUT
VIN
VOUT
Supply voltage: VCC
Output current (dc)
Input voltage range
Output voltage range
OUT0 to OUT15
SIN, SCLK, LAT, BLANK, IREF
SOUT
OUT0 to OUT15
TJ(MAX)
TSTG
Operating junction temperature
Storage temperature range
ESD rating
Human body model (HBM)
Charged device model (CDM)
TLC5928
0.3 to +6.0
40
0.3 to VCC + 0.3
0.3 to VCC + 0.3
0.3 to +18
+150
55 to +150
2
500
UNIT
V
mA
V
V
V
°C
°C
kV
V
(1) Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may
degrade device reliability. These are stress ratings only, and functional operation of the device at these or any other conditions beyond
those specified is not supported.
(2) All voltage values are with respect to network ground terminal.
DISSIPATION RATINGS
PACKAGE
SSOP-24/QSOP-24
OPERATING FACTOR
ABOVE TA = +25°C
14.3 mW/°C
TSSOP-24
HTSSOP-24 (1)
QFN-24 (2)
9.6 mW/°C
28.9 mW/°C
24.8 mW/°C
TA < +25°C
POWER RATING
1782 mW
1194 mW
3611 mW
3106 mW
TA = +70°C
POWER RATING
1140 mW
764 mW
2311 mW
1988 mW
TA = +85°C
POWER RATING
927 mW
621 mW
1878 mW
1615 mW
(1) With PowerPAD soldered onto copper area on printed circuit board (PCB); 2 oz. copper. For more information, see SLMA002 (available
for download at www.ti.com).
(2) The package thermal impedance is calculated in accordance with JESD51-5.
2 Submit Documentation Feedback
Product Folder Link(s): TLC5928
© 20082011, Texas Instruments Incorporated


Features Datasheet pdf TLC5928 www.ti.com SBVS120E – JULY 2 008 – REVISED JANUARY 2011 16-Channel , Constant-Current LED Driver with LED Open Detection Check for Samples: TLC59 28 FEATURES 1 •23 16 Channels, Const ant-Current Sink Output with On/Off Con trol • 35-mA Capability (Constant-Cur rent Sink) • 10-ns High-Speed Constan t-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-t o-Device = ±1% • CMOS Logic Level I/ O • 35-MHz Data Transfer Rate • 20- ns BLANK Pulse Width • Readable Error Information: – LED Open Detection (L OD) – Pre-Thermal Warning (PTW) • O perating Temperature: –40°C to +85° C APPLICATIONS • LED Video Displays • Message Boards • Illumination DES CRIPTION The TLC5928 is a 16-channel, c onstant-current sink LED driver. Each c hannel 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 .
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