DLPA2000
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BIT
ZHCSCO5B –JUNE 2014–REVISED FEBRUARY 2018
Table 10. Transient-Current Limit Settings Field Descriptions (continued)
FIELD
TYPE
RESET
DESCRIPTION
SW5LIM_EN
Transient current-limit enable for SW5
0 – Transient current-limit is disabled
1 – Transient current-limit is enabled
17
16
SW5LIM_EN
R/W
0
0
SW4LIM_EN
Transient current-limit enable for SW4
0 – Transient current-limit is disabled
1 – Transient current-limit is enabled
SW4LIM_EN
R/W
7.5.4 Regulation Current MSB, SW4
Figure 19. Regulation Current MSB, SW4, Address = 03h, HEX = 00
7
6
5
4
3
2
1
0
SW4MSB [31:24]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset.
Table 11. Regulation Current MSB, SW4 Field Descriptions(1)
BIT
FIELD
TYPE
R/W
R/W
RESET
0000
0000
DESCRIPTION
31:26
25:24
TBD
SW4MSB
SW4_IDAC<9:8>
(1) The DLPA2000 can use up to code 0x0FFh for SW4_IDAC[9:0].
7.5.5 Regulation Current LSB, SW4
Figure 20. Regulation Current LSB, SW4, Address = 04h, HEX = 00
7
6
5
4
3
2
1
0
SW4LSB [39:32]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset.
Table 12. Regulation Current LSB, SW4 Field Descriptions
BIT
FIELD
TYPE
RESET
DESCRIPTION
39:32
SW4LSB
R/W
00000000 SW4_IDAC<7:0>
Table 13. Regulation Current LSB, SW4 Bit Definitions
DLPA2000(1)(2)
SW4_IDAC[9:0]
0x000h
LED CURRENT
0 mA
SW4_IDAC[9:0]
0x100h
LED CURRENT
257 mA
SW4_IDAC[9:0]
0x200h
LED CURRENT
500 mA
0x00Ch
25 mA
26 mA
...
0x101h
0x102h
...
258 mA
259 mA
...
0x201h
0x202h
...
501 mA
502 mA
...
0x00Dh
...
0x0FEh
255 mA
256 mA
0x1FEh
0x1FFh
498 mA
499 mA
0x306h
0x307h
749 mA
750 mA
0x0FFh
(1) Values shown are for a typical DLPA2000 unit at T = 25°C. Typical step size is 0.95 mA for RLIM = 100 mΩ.
(2) The DLPA2000 can use up to code 0x307h for SW4_IDAC[9:0].
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