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TLC5973D Datasheet, PDF (10/27 Pages) Texas Instruments – 3-Channel, 12-Bit, PWM Constant-Current LED Driver
TLC5973
SBVS225A – MARCH 2013 – REVISED MAY 2013
PIN CONFIGURATION
D PACKAGE
SO-8
(Top View)
OUT0 1
OUT1 2
OUT2 3
GND 4
8 VCC
7 IREF
6 SDI
5 SDO
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PIN
NAME
NO.
GND
4
IREF
7
OUT0
1
OUT1
2
OUT2
3
SDI
6
SDO
5
VCC
8
PIN DESCRIPTIONS
I/O
DESCRIPTION
— Power ground
I/O
Output current programming terminal. A resistor connected between IREF and GND sets the current
for each constant-current output. Place the external resistor close to the device.
O Constant sink current driver outputs.
O Multiple outputs can be configured in parallel to increase the sink drive current capability.
O Different voltages can be applied to each output.
I Serial data input. This pin is internally pulled down to GND with a 1-MΩ (typ) resistor.
O Serial data output
— Power-supply voltage
10
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