TLC5943_17 Datasheet, PDF (18/40 Pages) Texas Instruments – 16-Channel, 16-Bit PWM LED Driver with 7-Bit Global Brightness Control

TLC5943
SBVS101 – DECEMBER 2007
Constant Current Driver ON/OFF Tming in ES-PWM
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BLANK
GSCLK
123
512 514
16,383 16,385 16,387 32,767 32,769 32,771 49,151 49,153 49,155 65,024 65,026 65,535
511 513
16,382 16,384 16,386 32,766 32,768 32,770 49,150 49,152 49,154 65,023 65,025 65,534 65,536
Voltage level = High ('H')
OFF
OUTn
ON
(GSDATA = 000h)
OFF
OUTn
ON
(GSDATA = 001h)
OFF
OUTn
ON
(GSDATA = 002h)
OFF
OUTn
ON
(GSDATA = 003h)
OFF
OUTn
ON
(GSDATA = 004h)
1st Period
2nd
Period
32nd 33rd
Period Period
Voltage level = Low ('L’)
T = GSCLK ´ 1d
T = GSCLK ´ 1d
64th 65th
Period Period
96th 97th
Period Period
127th
128th Period
Period
1st Period
T = GSCLK ´ 1d
If Auto Repeat
is enabled
T = GSCLK ´ 1d
T = GSCLK ´ 1d
T = GSCLK ´ 1d
T = GSCLK ´ 1d
T = GSCLK ´ 1d
T = GSCLK ´ 1d
T = GSCLK ´ 1d
OFF
OUTn
ON
(GSDATA = 0041h)
T = GSCLK ´ 1d
T = GSCLK ´ 1d
T = GSCLK ´ 1d
T = GSCLK ´ 1d
T = GSCLK ´ 1d
OFF
OUTn
ON
(GSDATA = 0080h)
OFF
OUTn
ON
(GSDATA = 0081h)
OFF
OUTn
ON
(GSDATA = 0082h)
OFF
OUTn
ON
(GSDATA = FFC0h)
OFF
OUTn
ON
(GSDATA = FFC1h)
OFF
OUTn
ON
(GSDATA = FFFEh)
OFF
OUTn
ON
(GSDATA = FFFFh)
T = GSCLK ´ 1d
T = GSCLK ´ 1d
T = GSCLK ´ 1d
T = GSCLK ´ 1d
T = GSCLK ´ 1d
T = GSCLK
´ 2d
T = GSCLK
´ 2d
T = GSCLK ´ 1d
T = GSCLK ´ 1d
T = GSCLK ´ 1d
T = GSCLK ´ 1d
T = GSCLK ´ 1d
T = GSCLK
´ 2d
T = GSCLK ´ 1d
T = GSCLK ´ 1d
T = GSCLK ´ 511d
T = GSCLK ´ 512d
T = GSCLK ´ 511d
in 2nd through 128th Periods
T = GSCLK ´ 511d
in 2nd through 128th Periods
T = GSCLK
´ 1d
T = GSCLK
´ 1d
T = GSCLK
´ 1d
T = GSCLK ´ 512d
T = GSCLK ´ 512d
T = GSCLK ´ 512d in 2nd through 63rd and 65th through 127th Periods;
T = GSCLK ´ 511d in 64th Period
T = GSCLK ´ 512d in 2nd through 127th Periods
Figure 23. PWM Operation Timing
T = GSCLK ´ 511d
T = GSCLK ´ 511d
18
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