TLC5926_15 Datasheet, PDF (1/39 Pages) Texas Instruments – 16-Channel Constant-Current LED Sink Drivers

Product
Folder
Sample &
Buy
Technical
Documents
Tools &
Software
Support &
Community
Reference
Design
TLC5926, TLC5927
SLVS677C – JULY 2008 – REVISED OCTOBER 2015
TLC592x 16-Channel Constant-Current LED Sink Drivers
1 Features
•1 16 Constant-Current Output Channels
• Output Current Adjusted By External Resistor
• Constant Output Current Range: 5 mA to 120 mA
• Constant Output Current Invariant to Load Voltage
Change
• Open-Load and Shorted-Load Detection
• 256-Step Programmable Global Current Gain
• Excellent Output Current Accuracy:
– Between Channels: < ±6% (Max),
10 mA to 50 mA
– Between ICs: < ±6% (Max), 10 mA to 50 mA
• 30-MHz Maximum Clock Frequency
• Schmitt-Trigger Input
• 3.3-V or 5-V Supply Voltage
• Thermal Shutdown for Overtemperature
Protection
2 Applications
• General LED Lighting Applications
• LED Display Systems
• LED Signage
• Automotive LED Lighting
• White Goods
3 Description
The TLC592x is designed for LED displays and LED
lighting applications with open-load, shorted-load, and
over temperature detection, and constant-current
control. The TLC592x contains a 16-bit shift register
and data latches, which convert serial input data into
parallel output format. At the TLC592x output stage,
16 regulated-current ports provide uniform and
constant current for driving LEDs within a wide range
of V_F (forward voltage) variations. Used in systems
designed for LED display applications (for example,
LED panels), TLC592x provides great flexibility and
device performance. Users can adjust the output
current from 5 mA to 120 mA through an external
resistor, R_ext, which gives flexibility in controlling the
light intensity of LEDs. The TLC592x is designed for
up to 17 V at the output port. The high clock
frequency, 30 MHz, also satisfies the system
requirements of high-volume data transmission.
Device Information ⁽¹⁾
PART NUMBER PACKAGE
BODY SIZE (NOM)
SSOP (24)
8.65 mm × 3.90 mm
TLC5926
SOIC (24)
15.40 mm × 7.50 mm
HTSSOP (24)
7.80 mm × 4.40 mm
SSOP (24)
8.65 mm × 3.90 mm
TLC5927
SOIC (24)
15.40 mm × 7.50 mm
HTSSOP (24)
7.80 mm × 4.40 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Single Implementation of TLC592x Device
3.0V to 5.5V
VLED
...
...
SDI
SDI
VDD
CLK
CLK
TLC5926/TLC5927
SDO
To Controller if Error
LE
LE
Detection Used
OE
OE
R-EXT
GND
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.