TLC59581 Datasheet, PDF (1/28 Pages) Texas Instruments – 48-Channel, 16-Bit ES-PWM LED Driver

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TLC59581, TLC59582
SLVSCZ9A – OCTOBER 2015 – REVISED NOVEMBER 2015
TLC59581/82 48-Channel, 16-Bit ES-PWM LED Driver with Pre-Charge FET, LOD
Caterpillar Cancelling and Display Data Memory
1 Features
•1 48 Constant-Current Sink Output Channels
• Sink Current Capability with Max BC/CC data:
– 25 mA at 5 VCC
– 20 mA at 3.3 VCC
• Global Brightness Control (BC): 3-Bit (8-Step)
• Color Brightness Control (CC) for Each Color
Group: 9-Bit (512-Step), Three Groups
• LED Power Supply Voltage Up To 10 V
• V_CC = 3.0 V to 5.5 V
• Constant Current Accuracy
– Channel-to-Channel = ±1%(Typ), ±3%(Max)
– Device-to-Device = ±1%(Typ), ±2%(Max)
• Data Transfer Rate: 25 MHz
• Gray Scale Clock: 33 MHz
• Pre-Charge FET to Avoid Ghosting Phenomenon
• Enhanced Circuit for Caterpillar Cancelling
• Low-Grayscale Enhancement
• LED Open Detection (LOD)
• Thermal Shut Down (TSD)
• Operating Temperature: –40°C to 85°C
2 Applications
• LED Video Displays with Multiplexing System
• LED Signboards with Multiplexing system
• High Refresh Rate & High Density LED Panel
3 Description
The TLC59581/82are 48-channel constant-current
sink drivers. Each channel has an individually-
adjustable, 65536-step, pulse width modulation
(PWM) grayscale (GS) brightness control.
The TLC59581 can support 32-multiplexing while
TLC59582 can support 16-multiplexing.
The output channels are divided into three groups.
Each group has a 512-step color brightness control
(CC). CC adjusts brightness control between colors.
The maximum current value of all 48 channels can be
set by 8-step global brightness control (BC). BC
adjusts brightness deviation between LED drivers.
GS, CC and BC data are accessible through a serial
interface port.
See application note Build High Density, High
Refresh Rate, Multiplexing LED Panel with
TLC59581, SLVA744.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TLC59581
TLC59582
VQFN (56)
8.00 mm × 8.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Application Schematic (Multiple Daisy-Chained TLC59581/82)
VLED
SW
COM n
COM n
VLED
SW
COM 1
VLED
SW
COM 0
X 48
COM 1
COM 0
X 48
Controller
DATA
SCLK
LAT
GCLK
FLAGS
READ
OUTR0
OUTB15
SIN
SCLK
LAT
SOUT
TLC59581 / 82
IC1
VCC
GCLK
IREF
IREFGND
Thermal
Pad
V_CC
GND
OUTR0
OUTB15
SIN
SOUT
TLC59581 / 82
SCLK
LAT
ICn
VCC
GCLK
IREF
IREFGND
Thermal
Pad
V_CC
GND
GND
3
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.