Driver. TLC59284 Datasheet

TLC59284 Datasheet PDF


Part

TLC59284

Description

16-Channel Constant-Current LED Driver

Manufacture

etcTI

Page 20 Pages
Datasheet
Download TLC59284 Datasheet


TLC59284 Datasheet
TLC59284
www.ti.com
SBVS208A – OCTOBER 2012 – REVISED OCTOBER 2012
16-Channel, Constant-Current LED Driver with Switching Delay
Check for Samples: TLC59284
FEATURES
1
2 16-Channel, Constant-Current Sink Output
with On and Off Control
• Constant-Current Sink Capability:
– 35 mA (VCC 3.6 V)
– 45 mA (VCC > 3.6 V)
• LED Power-Supply Voltage: Up to 10 V
• VCC: 3 V to 5.5 V
• Constant-Current Accuracy:
– Channel-to-Channel:
±1.4% (typ), ±3% (max)
– Device-to-Device: ±2% (typ), ±4% (max)
• CMOS Logic Level I/O
• Data Transfer Rate: 35 MHz
• BLANK Pulse Width: 50 ns
• Switching Delay for Noise Reduction
• Operating Temperature: –40°C to +85°C
APPLICATIONS
• Video Displays
• Message Boards
DESCRIPTION
The TLC59284 is a 16-channel, constant-current sink
light-emitting diode (LED) driver. Each channel can
be individually controlled with a simple serial
communications protocol that is compatible with 3.3-V
or 5-V CMOS logic levels, depending on the
operating VCC. When the serial data buffer is loaded,
a LAT rising edge transfers the data to the OUTn
outputs. The BLANK 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 constant-current value of all 16
channels is set by a single external resistor.
VLED
¼¼
¼
Controller
DATA
SCLK
LAT
BLANK
RIREF
¼¼
¼OUT0
OUT15
SIN
SCLK
SOUT
VCC
LAT
BLANK
VCC
IREF
GND
Device 1
RIREF
¼
¼OUT0
OUT15
SIN
SCLK
SOUT
VCC
LAT
BLANK
VCC
IREF
GND
Device n
3
Typical Application Circuit (Multiple Daisy-Chained TLC59284s)
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 © 2012, Texas Instruments Incorporated

TLC59284 Datasheet
TLC59284
SBVS208A – OCTOBER 2012 – REVISED OCTOBER 2012
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
TLC59284
PACKAGE AND ORDERING INFORMATION(1)
PACKAGE-LEAD
ORDERING NUMBER
TRANSPORT MEDIA, QUANTITY
SSOP-24, QSOP-24
TLC59284DBQR
TLC59284DBQ
Tape and Reel, 2500
Tube, 50
(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.
Supply voltage
Input voltage range, VIN
Output voltage range, VOUT
Current, IOUT
Temperature
Electrostatic discharge (ESD) ratings
VCC
SIN, SCLK, LAT, BLANK, IREF
Output range, SOUT
Output range, OUT0 to OUT15
Output (dc), OUT0 to OUT15
Operating junction, TJ(MAX)
Storage range, Tstg
Human body model (HBM)
Charged device model (CDM)
VALUE
MIN MAX
–0.3 +6
–0.3
–0.3
–0.3
VCC + 0.3
VCC + 0.3
+11
+50
+150
–55 +150
4000
2000
UNIT
V
V
V
V
mA
°C
°C
V
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.
THERMAL INFORMATION
THERMAL METRIC(1)
θJA
θJCtop
θJB
ψJT
ψJB
θJCbot
Junction-to-ambient thermal resistance
Junction-to-case (top) thermal resistance
Junction-to-board thermal resistance
Junction-to-top characterization parameter
Junction-to-board characterization parameter
Junction-to-case (bottom) thermal resistance
TLC59284
DBQ
24 PINS
91.5
55.2
44.9
16.8
44.5
N/A
UNITS
°C/W
(1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.
2 Submit Documentation Feedback
Product Folder Links: TLC59284
Copyright © 2012, Texas Instruments Incorporated


Features Datasheet pdf TLC59284 www.ti.com SBVS208A – OCTOB ER 2012 – REVISED OCTOBER 2012 16-Ch annel, Constant-Current LED Driver with Switching Delay Check for Samples: TLC 59284 FEATURES 1 •2 16-Channel, Cons tant-Current Sink Output with On and Of f Control • Constant-Current Sink Cap ability: – 35 mA (VCC ≤ 3.6 V) – 45 mA (VCC > 3.6 V) • LED Power-Suppl y Voltage: Up to 10 V • VCC: 3 V to 5 .5 V • Constant-Current Accuracy: – Channel-to-Channel: ±1.4% (typ), ±3% (max) – Device-to-Device: ±2% (typ) , ±4% (max) • CMOS Logic Level I/O Data Transfer Rate: 35 MHz • BLANK Pulse Width: 50 ns • Switching Delay for Noise Reduction • Operating Temp erature: –40°C to +85°C APPLICATIO NS • Video Displays • Message Board s DESCRIPTION The TLC59284 is a 16-chan nel, constant-current sink light-emitti ng diode (LED) driver. Each channel can be individually controlled with a simp le serial communications protocol that is compatible with 3.3-V or 5-V CMOS logic levels, depending on the operating VCC. When the serial data buffe.
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