c644ultrt Semtech Corporation, c644ultrt Datasheet - Page 11
c644ultrt
Manufacturer Part Number
c644ultrt
Description
Light Management Unit With 4 Ldos And Sempulse Interface
Manufacturer
Semtech Corporation
Datasheet
1.C644ULTRT.pdf
(26 pages)
- Current page: 11 of 26
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Block Diagram
AGND
PGND
SPIF
BYP
IN
13
12
2
9
1
V
IN
Reference
Voltage
SemPulse
and Logic
Interface
Control
LDO
Digital
C2+
17
Fractional Charge Pump
(1x, 1.5x, 2x)
C1+
Oscillator
18
Current
Voltage
Setting
Setting
DAC
DAC
C1-
19
V
V
LDO2
LDO4
IN
IN
C2-
20
V
V
LDO1
LDO3
IN
IN
16
15
14
11
10
5
4
3
7
8
6
BL6
OUT
BL1
BL2
BL3
BL4
BL5
LDO1
LDO2
LDO3
LDO4
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