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SC668 Datasheet(PDF) 33 Page - Semtech Corporation

Part # SC668
Description  8 LED Light Management Unit Automatic Dropout Prevention , Ambient Light Sense Input, PWM Dimming, and 4 LDOs
PDF  46 Pages
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC668 Datasheet(HTML) 33 Page - Semtech Corporation

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SC668
33
Blink/Breathe Bank #2 Target Register (07h)
This register is used to enable the LED blink and breathe
lighting effects for bank #2 and set the target backlight
current.
B2BEN Bit [D5]
This bit, in conjunction with the B2FEN bit, enables blink/
breathe functions for bank #2 as shown in Figure 25.
B2BEN = 0
B2FEN = 0
B2BEN = 0
B2FEN = 1
B2BEN = 1
B2FEN = 0
B2BEN = 1
B2FEN = 1
Fade
No Light Effect
Breathe
Bank #2
Blink
Figure 25 — Bank #2 Lighting Effect
IBT2_4 through IBT2_0 [D4:D0]
When lighting effects are enabled, these bits set the target
backlight current for bank #2. Target values are shown in
Table 7.
Table 7 — Bank #2 Target Backlight Current
IBT2_4 IBT2_3 IBT2_2 IBT2_1 IBT2_0
Bank #2
Target
Current
(mA)
0
0
0
0
0
0
0
0
0
0
1
0.05
0
0
0
1
0
0.1
0
0
0
1
1
0.2
0
0
1
0
0
0.5
0
0
1
0
1
1
0
0
1
1
0
1.5
0
0
1
1
1
2
0
1
0
0
0
2.5
0
1
0
0
1
3
0
1
0
1
0
3.5
0
1
0
1
1
4
0
1
1
0
0
4.5
0
1
1
0
1
5
0
1
1
1
0
6
0
1
1
1
1
7
1
0
0
0
0
8
1
0
0
0
1
9
1
0
0
1
0
10
1
0
0
1
1
11
1
0
1
0
0
12
1
0
1
0
1
13
1
0
1
1
0
14
1
0
1
1
1
15
1
1
0
0
0
16
1
1
0
0
1
17
1
1
0
1
0
18
1
1
0
1
1
19
1
1
1
0
0
20
1
1
1
0
1
21
1
1
1
1
0
23
1
1
1
1
1
25
Register Map (continued)



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