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SC643 数据表(PDF) 21 Page - Semtech Corporation

部件名 SC643
功能描述  Light Management Unit with 4 LDOs and SemPulse짰Interface
PDF  26 Pages
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制造商  SEMTECH [Semtech Corporation]
网页  http://www.semtech.com
标志 SEMTECH - Semtech Corporation

SC643 数据表(HTML) 21 Page - Semtech Corporation

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SC643
21
Register Map (continued)
SBL4 through SBL0 [D4:D0]
These bits are used to set the current for the sub backlight
current sinks. All enabled current sinks will sink the same
current as shown in Table 5.
Table 5 — Sub Backlight Current Settings
SBL4
SBL3
SBL2
SBL1
SBL0
Backlight
Current (mA)
00
0
0
0
0
0
0
0
0
1
See note (1)
0
0
0
1
0
See note (1)
0
0
0
1
1
See note (1)
0
0
1
0
0
0.5
00
1
0
1
1
0
0
1
1
0
1.5
00
1
1
1
2
0
1
0
0
0
2.5
01
0
0
1
3
0
1
0
1
0
3.5
01
0
1
1
4
0
1
1
0
0
4.5
01
1
0
1
5
01
1
1
0
6
01
1
1
1
7
10
0
0
0
8
10
0
0
1
9
10
0
1
0
10
10
0
1
1
11
10
1
0
0
12
10
1
0
1
13
10
1
1
0
14
10
1
1
1
15
11
0
0
0
16
11
0
0
1
17
11
0
1
0
18
11
0
1
1
19
11
1
0
0
20
11
1
0
1
21
11
1
1
0
23
11
1
1
1
25
(1)
Reserved for future use.
LDO1 Control Register (05h)
This register is used to enable LDO1 and set its output
voltage level.
Bits [D5:D4]
These bits are unused and are always zeroes.
LDO1V3 through LDO1V0 [D3:D0]
These bits set the output voltage of LDO1 as shown in
Table 6.
Table 6 — LDO1 Control Codes
LDO1V3
LDO1V2
LDO1V1
LDO1V0
V
LDO1
0000
OFF
0001
3.3V
0010
3.2V
0011
3.1V
0100
3.0V
0101
2.9V
0110
2.8V
0111
2.7V
1000
2.6V
1001
2.5V
1010
2.4V
1011
2.2V
1100
1.8V
1101
1.7V
1110
1.6V
1111
1.5V



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