TLC5948A Datasheet, PDF (24/50 Pages) Texas Instruments – 16-Channel, 16-Bit, ES-PWM, Full Self-Diagnosis LED Driver

TLC5948A
SBVS192 – MARCH 2012
www.ti.com
BLANK Bit in the
First Control Data Latch
(Internal)⁽¹⁾
GSCLK
16382 16385
32766 32769
49150 49153
65023 65026
65536
511 513
¼
1 2 3 ^¼ 512 514
16383 16386
¼
16384 16387
32767 32770
¼
32768 32771
49151 49154
¼
49152 49155
65024
65534
¼
65025
65535
(Voltage Level = High)
OUTn ^OFF
(GS Data = 0000h) _ON
1st Period
2nd
32nd 33rd
64th 65th
96th 97th
127th
¼
Period Period Period
¼
Period Period
¼
¼
Period Period Period
(Voltage Level = Low)
128th
Period
1st
Period
OUTn OFF
(GS Data = 0001h) _ON
OUTn OFF
(GS Data = 0002h) _ON
OUTn OFF
(GS Data = 0003h) _ON
t = GSCLK ´ 1d
t = GSCLK
t = GSCLK
t = GSCLK
t = GSCLK
t = GSCLK
Note (2)
OUTn OFF
(GS Data = 0004h) _ON
OUTn OFF
(GS Data = 0041h) _ON
t = GSCLK
t = GSCLK
t = GSCLK
t = GSCLK
t = GSCLK
t = GSCLK
t = GSCLK
t = GSCLK
t = GSCLK
t = GSCLK
t = GSCLK
OUTn OFF
(GS Data = 0080h) _ON
OUTn OFF
(GS Data = 0081h) _ON
OUTn OFF
(GS Data = 0082h) _ON
OUTn OFF
(GS Data = FF80h) _ON
OUTn OFF
(GS Data = FF81h) _ON
t = GSCLK
t = GSCLK
t = GSCLK ´ 2
t = GSCLK
t = GSCLK ´ 2
t=
GSCLK ´ 511
t = GSCLK
t = GSCLK
t = GSCLK
t = GSCLK ´ 2
t = GSCLK
t = GSCLK
t = GSCLK
t = GSCLK ´ 2
t = GSCLK
t = GSCLK
t = GSCLK
t = GSCLK ´ 511 in 2nd to 128th Period
t = GSCLK
t = GSCLK ´ 512
t = GSCLK ´ 511 in 2nd to 128th Period
OUTn ^OFF
(GS Data = FFFEh) _ON
t = GSCLK ´ 512
t = GSCLK ´ 512
t = GSCLK ´ 512 in 2nd to 63rd and 65th to 127th Periods,
t = GSCLK ´ 511 in 64th Period
t = GSCLK ´ 512 in 2nd to 127th Period
t=
GSCLK ´ 511
t=
GSCLK ´ 511
OUTn OFF
(GS Data = FFFFh) _ON
(1) The internal signal is generated when LAT inputs GS data when the display timing reset bit (TMGRST) is set to '1'. This signal has the
same function as BLANK = 1. Furthermore, the signal is generated at the 65,536th GSCLK when the auto display repeat bit (DSPRPT) is set
to '1'.
(2) When auto display repeat is on.
Figure 26. ES PWM Operation
24
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