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SC653 Datasheet(PDF) 18 Page - Semtech Corporation

Part # SC653
Description  Light Management Unit with 2 LDOs and SemPulse짰Interface
PDF  22 Pages
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC653 Datasheet(HTML) 18 Page - Semtech Corporation

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SC653
18
Register Map(1)
Address
D5
D4
D3
D2
D1
D0
Reset
Value
Description
00h
0(2)
BL_4
BL_3
BL_2
BL_1
BL_0
00h
Backlight
Current
01h
0(2)
0(2)
BLEN_4
BLEN_3
BLEN_2
BLEN_1
00h
Backlight
Enable
02h
0(2)
0(2)
LDO1_3
LDO1_2
LDO1_1
LDO1_0
00h
LDO1
03h
0(2)
0(2)
0(2)
LDO2_2
LDO2_1
LDO2_0
00h
LDO2
04h
0(2)
0(2)
0(2)
FADE_1
FADE_0
FADE_EN
00h
Fade
Notes:
(1)
All registers are write-only.
(2)
0 = always write a 0 to these bits
Definition of Registers and Bits
BL Current Control Register (00h)
This register is used to set the currents for the backlight
current sinks. These current sinks need to be enabled in
the Backlight Enable Control register to be active.
BL[D4:D0]
These bits are used to set the current for the backlight
current sinks. All enabled backlight current sinks will sink
the same current, as shown in Table 1.
Table 1 — Backlight Current Settings
BL_4
BL_3
BL_2
BL_1
BL_0
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
BL_4
BL_3
BL_2
BL_1
BL_0
Backlight
Current (mA)
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



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