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| TLC5973 Datasheet, PDF (7/34 Pages) Texas Instruments – TLC5973 3-Channel, 12-Bit, PWM Constant-Current LED Driver with Single-Wire Interface (EasySet) | |||
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www.ti.com
7 Parameter Measurement Information
7.1 Pin-Equivalent Input and Output Schematic Diagrams
VCC
SDI
GND
Figure 3. SDI
OUTn(1)
TLC5973
SBVS225B â MARCH 2013 â REVISED MAY 2014
VCC
SDO
GND
Figure 4. SDO
(1) n = 0 to 2.
7.2 Test Circuits
GND
Figure 5. OUT0 Through OUT2
VCC
IREF
RIREF
VCC
OUTn(1)
GND
RL
CL(2)
VLED
(1) n = 0 to 2.
(2) CL includes measurement probe and jig capacitance.
Figure 6. Rise and Fall Time Test Circuit for
OUTn
VCC
RIREF
IREF
VCC
GND
SDO
CL(1)
(1) CL includes measurement probe and jig capacitance.
Figure 7. Rise and Fall Time Test Circuit for SDO
VCC
VCC
IREF
OUTn(1)
RIREF
GND OUTn
VOUTfix
VOUTn
(1) n = 0 to 2.
Figure 8. Constant-Current Test Circuit for OUTn
Copyright © 2013â2014, Texas Instruments Incorporated
Product Folder Links: TLC5973
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