DLPA2000
ZHCSCO5B –JUNE 2014–REVISED FEBRUARY 2018
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7.5.2 Enable Register
Figure 17. Enable Register, Address = 01h, HEX = 0F
7
6
5
4
3
2
1
0
CHIPENABLE [15:8]
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 9. Enable Register Field Descriptions
BIT
FIELD
TYPE
R/W
RESET
0000
DESCRIPTION
15:12
USER_GPO<3:0>
VLED_POWER_SAVE_MODE_DIS
Power save mode is used to improve efficiency at light load.
11
R/W
1
FAST_SHUTDOWN_EN
Applicable only during a fault condition.
Shutdown timing is defined by register 0Eh (see Figure 7).
CHIPENABLE
10
R/W
1
9
8
R/W
R/W
1
1
DMD_EN
VLED_EN
7.5.3 Transient-Current Limit Settings
Figure 18. Transient-Current Limit Settings, Address = 02h, HEX = 30
7
6
5
4
3
2
1
0
IREG [23:16]
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 10. Transient-Current Limit Settings Field Descriptions
BIT
FIELD
TYPE
R/W
RESET
DESCRIPTION
23
RSVD
0
Not used
IREG_ILIM<3:0>
0000
RLIM = 100 mΩ
130 mA
150 mA
172 mA
192 mA
220 mA
275 mA
330 mA
440 mA
550 mA
660 mA
770 mA
880 mA
990 mA
1160 mA
1330 mA
1500 mA
0001
0010
0011
0100
0101
0110
22:19 IREG
R/W
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
SW6LIM_EN
Transient current-limit enable for SW6
0 – Transient current-limit is disabled
1 – Transient current-limit is enabled
18
SW6LIM_EN
R/W
0
30
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