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| TLC5951 Datasheet, PDF (11/46 Pages) Texas Instruments – 24-Channel, 12-Bit PWM LED Driver with 7-Bit Dot Correction and 3-Group, 8-Bit Global Brightness Control | |||
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TLC5951
www.ti.com
SBVS127B â MARCH 2009 â REVISED DECEMBER 2009
PARAMETER MEASUREMENT INFORMATION
PIN EQUIVALENT INPUT AND OUTPUT SCHEMATIC DIAGRAMS
VCC
VCC
INPUT
INPUT
GND
Figure 1. GSSCK, GSLAT, DCSIN, DCSCK, GSCKR,
GSCKG, GSCKB
VCC
GND
Figure 2. GSSIN, XBLNK
OUTn
SOUT
GND
GND
Figure 3. GSSOUT, DCSOUT
TEST CIRCUITS
(2) CL includes measurement probe and jig capacitance.
(3) X = R, G, or B; n = 0-7.
(4) CL includes measurement probe and jig capacitance.
VCC
IREF
RIREF
VCC
OUTXn(2)
GND
RL
CL(1)
VLED
Figure 4. OUTR0/G0/B0 Through OUTR7/G7/B7
VCC
VCC
SOUT
GND
CL(1)
Figure 5. Rise Time and Fall Time Test Circuit for Figure 6. Rise Time and Fall Time Test Circuit for
OUTRn/Gn/Bn
GSSOUT and DCSOUT
VCC
IREF
RIREF
VCC OUTR0
OUTXn(1)
GND OUTB7
VOUTfix
VOUTRn/Gn/Bn
(1) X = R, G, or B; n = 0-7.
Figure 7. Constant-Current Test Circuit for OUTRn/Gn/Bn
Copyright © 2009, Texas Instruments Incorporated
Product Folder Link(s): TLC5951
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