TLC5942_16 Datasheet, PDF (11/29 Pages) Texas Instruments – 16-Channel, 12-Bit PWM LED Driver with 7-Bit Dot Correction

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Not Recommended for New Designs
TLC5942
SBVS096B – OCTOBER 2007 – REVISED OCTOBER 2007
GSSIN
GS0
0A
T_SU0
GSSCLK
GS15
11B
GS15 GS15
10B 9B
T_H0
GS15
8B
GS15
7B
GS0
3B
GS0
2B
GS0
1B
GS0
0B
T_WH0
GS15 GS15 GS15 GS15 GS15 GS15 GS15
11C 10C 9C
8C
7C
6C
5C
T_SU2
T_GSSCLK
123 45
189 190 191 192
T_WL0
T_H1 T_WH1 T_SU3
T_SU1
XGSLAT
BLANK
Shift Register Data are Transferred
to Data Latch
Latched Data
for Grayscale
(Internal)
Previous Data
GSSOUT
GS15
11A
t_D0
GS15 GS15
10A 9A
GS15
8A
GS15
7A
GS15
6A
GS0
3A
t_R0/t_F0
GS0
2A
GS0 GS0
1A
0A
GS15
11B
Turning off outputs with the BLANK signal (all GS data are greater than 006h):
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
OUT ^OFF
3, 7, 11, 15 _ON
Turning off outputs with GSCLK (all GS data are set to 001h):
T_WH1
T_SU1
Latest Data
t_D0
LOD LOD
15
14
LOD LOD
13
12
t_D1
LOD
11
LOD
10
LOD
9
SID Load Timing to
GS Data Shift Register
t_D2
t_F1
t_D3
t_D4
t_D5
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_D3
t_D4
t_D5
Figure 9. Grayscale Data Write Timing
t_OUTON
t_OUTON
t_OUTON
t_OUTON
t_{ON_ERR} = t_OUTON - T_GSSCLK
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