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| TLC5971 Datasheet, PDF (10/37 Pages) Texas Instruments – 12-Channel 16-Bit, Enhanced Spectrum PWM, RGB LED Driver with 3.3-V Linear Regulator | |||
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TLC5971
SBVS146 â AUGUST 2010
PARAMETRIC MEASUREMENT INFORMATION
PIN EQUIVALENT INPUT/OUTPUT SCHEMATICS
VREG
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VREG
INPUT
OUTPUT
GND
Figure 1. SDTI/SCKI
GND
Figure 2. SDTO/SCKO
OUTXn(1)
(1) X = R/G/B, n = 0-3.
TEST CIRCUITS
GND
Figure 3. OUTR0 Through OUTB3
VCC
CVREG
VREG
IREF
RIREF
VCC
OUTXn(1)
GND
RL
CL(2)
VLED
(1) X = R/G/B, n = 0-3.
(2) CL includes measurement probe and stray capacitance.
Figure 4. Rise/Fall Time Test Circuit for OUTXn
VCC
VCC
VREG
CVREG
SDTO/SCKO
GND
CL(1)
(1) CL includes measurement probe and stray capacitance.
Figure 5. Rise/Fall Time Test Circuit for
SDTO/SCKO
(1) X = R/G/B, n = 0-3.
VCC
CVREG
VREG
IREF
RIREF
VCC
OUTR0
OUTXn(1)
OUTB3
GND
VOUTfix
VOUTXn
Figure 6. Constant-Current Test Circuit for OUTXn
10
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Copyright © 2010, Texas Instruments Incorporated
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