LD1024 Datasheet, PDF (19/22 Pages) LDT Co., Ltd – Constant-Current LED Driver

LD1024
16-Channel, Constant-Current LED Driver with LED Open Detection
DIN
CLK
STREOB
DATA
0A
DATA DATA DATA DATA DATA
15B 14B 13B 12B 11B
T_0SU
T_H0
T_WH0
DATA DATA DATA DATA
3B
2B 1B
0B
T_H1
1
2
3
4
5
13
14
15
16
DATA DATA DATA DATA DATA DATA
15C 14C 13C 12C 11C 10C
T_SU1
1
2
3
4
5
6
T_WH1
T_WL0
Shift Register
LSB Data (Internal)
DATA
0A
LOD DATA DATA DATA DATA
0
15B 14B 13B 12B
DATA DATA DATA DATA
3B
2B
1B
0B
LOPDTW0A_Aor
DATA DATA DATA DATA DATA
15C 14C 13C 12C 11C
Shift Register
LSB +1 Data (Internal)
DATA
1A
LOD
1
LOD DATA DATA DATA
0
15B 14B 13B
DATA DATA DATA
4B
3B
2B
LOPDTW1A_Aor
LOD DATA DATA DATA DATA
0A 15C 14C 13C 12C
Shift Register
MSB -1 Data (Internal)
Shift Register
MSB Data (Internal)
DATA
14A
LOD
14
LOD LOD LOD LOD
13
12
11
10
DATA
15A
LOD
15
LOD LOD LOD LOD
14
13
12
11
On/Off Control
Latch Data (Internal)
LOD LOD DATA
1
0
15B
LOD 14A or PTW_A ^{LOD LOD LOD LOD LOD}
13A 12A 11A 10A 9A
LOD
2
LOD
1
LOD
0
DATA
15B
LOD 15A or PTW_A
LOD
14A
LOD
13A
LOD
12A
LOD LOD
11A 10A
PDraetvaious Grayscale Latch
Latest Grayscale Latch Data
DOUT
OEB
DATA
15A
LOD
15
LOD LOD LOD LOD
14
13
12
11
t_D0
t_R0t_F0
OFF
OUTn⁽¹⁾
ON
OFF
OUTn⁽²⁾
ON
OFF
OUTn⁽¹⁾
ON
OFF
OUTn⁽¹⁾
ON
LOD
2
LOD
1
LOD
0
DATA
15B
LOD 15A or PTW_A
LOD
14A
LOD
13A
LOD
12A
LOD
11A
LOD
10A
t_D1
ON
t_D1
ON
t_F1
t_D2
OFF
t_D1
ON
OFF
t_WH2
t_WL2
t_2D OFF
ON
t_OUTON
OFF
t_R1
Figure 13. Timing Diagram
LDT Inc. WE bldg. 5F, 126-33 Han-dle 1ro, Seobuk-gu, Cheonan, Chungnam, korea, 331-220
Tel. [phone] Fax. [phone] www.ldt.co.kr
19
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