TLC5943_17 Datasheet, PDF (11/40 Pages) Texas Instruments – 16-Channel, 16-Bit PWM LED Driver with 7-Bit Global Brightness Control

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TLC5943
SBVS101 – DECEMBER 2007
BCSEL
T_SU3
T_SU4
SIN
GS0
0A
GS15 GS15 GS15 GS15 GS15
15B 14B 13B 12B 11B
GS0
3B
GS0
2B
GS0
1B
GS0
0B
T_SU0
T_H0
T_WH0
SCLK
GSCLK
123 45
253 254 255 256
T_WH0
T_WL0
65,534 65,535 65,536 65,537 65,538
T_WL0
T_H1
T_SU1
T_WH1
T_H3
T_H2
T_GSCLK
XLAT
BLANK
T_SU6
T_WH1
Latched Data
for Grayscale
(Internal)
Previous Data
T_SU2
Latest Data
SOUT
GS15
15A
t_D0
GS15 GS15
14A 13A
GS15
12A
GS15
11A
GS15
10A
GS0
3A
GS0
2A
GS0
1A
GS0
0A
t_R0/t_F0
GS15
15B
Turning off outputs with the BLANK signal (all GS data are greater than 0300h):
LOD LOD LOD LOD LOD LOD LOD
15
14
13
12
11
10
9
t_D1
OUT ^OFF
0, 4, 8, 12 ON
(V_OUTnH)
(V_OUTnL)
OUT ^OFF
1, 5, 9, 13 ON
OUT ^OFF
2, 6, 10, 14 ON
If GS data = FFFFh (65535d)
OUT ^OFF
3, 7, 11, 15 ON
Turning off outputs with GSCLK (all GS data are set to 0001h):
t_D2
t_D3
t_D4
t_D5
t_F1
t_R1
OUT ^OFF
0, 4, 8, 12 ON
OUT ^OFF
1, 5, 9, 13 ON
OUT ^OFF
2, 6, 10, 14 ON
OUT ^OFF
3, 7, 11, 15 ON
t_D2
t_OUTON
t_D3
t_OUTON
t_D4
t_OUTON
t_D5
t_OUTON
t_{ON_ERR} = t_OUTON - T_GSCLK
Figure 11. Grayscale Data Write and Constant Current Output Timing
Copyright © 2007, Texas Instruments Incorporated
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