TLC5943_17 Datasheet, PDF (20/40 Pages) Texas Instruments – 16-Channel, 16-Bit PWM LED Driver with 7-Bit Global Brightness Control

TLC5943
SBVS101 – DECEMBER 2007
www.ti.com
Auto Display Repeat Function
This function can repeat the total display period without a BLANK signal as long as GSCLK is input as Figure 24
shows. This function can be switched on or off by the data of bit 7 in the first latch of the Brightness Control.
When bit 7 is '1', Auto Repeat is enabled and the entire display period repeats without a BLANK signal. When bit
7 is '0', Auto Repeat is disabled and the entire display period executes only one time after the falling edge of
BLANK.
BLANK
GSCLK
Brightness
1st Latch
Bit 7
65,534 65,536
65,534 65,536
¼ ¼ _{1 2 3 4 5 65,533 65,535 1 2 3 4 5 65,533 65,535 1 2 3 4 5 6 7 8 9 10}
Bit 7 = ‘1’
(Auto Repeat On)
1st of 128
display period
2nd of 128
display period
3rd of 128
display period
OUTn
(GSData = FFFFh)
OFF
Display period repeated
by Auto Refresh function
OUTn is forced off
when BLANK goes high
ON
Figure 24. Auto Repeat Display Function Timing
65,534 65,536
¼ _{1 2}
65,535 1 2
Bit 7 = ‘0’
(Auto Repeat Off)
1st of 128
display period
OUTn is not
turned on until
next BLANK
falling edge
20
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