TLC59711 Datasheet, PDF (1/36 Pages) Texas Instruments – 12-Channel, 16-Bit, Enhanced Spectrum PWM, RGB, LED Driver

TLC59711
www.ti.com
SBVS181 – OCTOBER 2011
12-Channel, 16-Bit, Enhanced Spectrum PWM, RGB, LED Driver with
3.3-V Linear Regulator and Watchdog Timer
Check for Samples: TLC59711
FEATURES
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•23 12 Constant-Current Sink Output Channels
• Current Capability: 60 mA per channel
• Grayscale (GS) Control with Enhanced
Spectrum PWM:
16-bit (65536 steps)
• Global Brightness Control (BC):
7-bit (128 steps) for each color group
• Power-Supply Voltage Range:
Internal linear regulator: 4.0 V to 17 V
Direct power supply: 3.0 V to 5.5 V
• LED Supply Voltage: Up to 17 V
• Constant-Current Accuracy:
– Channel-to-Channel = ±1% (typ), ±3% (max)
– Device-to-Device = ±1% (typ), ±4% (max)
• Data Transfer Rate: 10 MHz (cascading)
• Linear Voltage Regulator: 3.3 V
• Auto Display Repeat Function
• Display Timing Reset Function
• Internal/External Selectable GS Clock
• Thermal Shutdown (TSD) with Auto Restart
• Unlimited Device Cascading
• Watchdog Timer for External Clock Failure
• Operating Temperature Range: –40°C to +85°C
APPLICATIONS
• RGB LED Cluster Lamp Displays
DESCRIPTION
The TLC59711 is a 12-channel, constant-current sink
driver. Each output channel has individually
adjustable currents with 65536 PWM grayscale (GS)
steps. Also, each color group can be controlled by
128 constant-current sink steps with the global
brightness control (BC) function. GS control and BC
are accessible via a two-wire signal interface. The
maximum current value for each channel is set by a
single external resistor. All constant-current outputs
are turned off when the IC is in an over-temperature
condition.
Power
Supply
(4 V to 17 V)
VCC
GND
1 mF
TLC59711
GND
VCC
VREG
OUTR0
IREF
OUTG0
Optional
1 mF
TLC59711
GND
VCC
VREG
OUTR0
IREF
OUTG0
Optional
Controller
DATA
CLK
GND
SDTI
SCKI
OUTG3
OUTB3
SDTO
SCKO
SDTI
SCKI
OUTG3
OUTB3
SDTO
SCKO
NOTE: The number of LEDs in series changes, depending on the VCC voltage.
Typical Application Circuit Example
(Internal Linear Regulator Using V_CC = 4 V to 17 V)
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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 Incoporated.
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All other trademarks are the property of their respective owners.
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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 © 2011, Texas Instruments Incorporated