TLC5973D Datasheet, PDF (11/27 Pages) Texas Instruments – 3-Channel, 12-Bit, PWM Constant-Current LED Driver

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VCC
SDI
IREF
GND
TLC5973
SBVS225A – MARCH 2013 – REVISED MAY 2013
FUNCTIONAL BLOCK DIAGRAM
VCC
Shunt
Regulator
UVLO
reset
Internal
Oscillator
outen
Interface
Control
LSB
sin
sclk
0
Pulse
Generator
48-Bit Shift Register
MSB
Lower 36 Bits
47
Upper 8 Bits
Command
Decoder (3AAh)
12 MHz
reset
reset
LSB
gslat
MSB
36-Bit GS Data Latch
0
35
GS Clock
36
Counter
12
12-Bit PWM Timing Control
3
Switching Delay
3
3-Channel Constant Sink Current Driver
SDO
OUT0
OUT1
OUT2
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