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ACT8740 датащи(PDF) 15 Page - Active-Semi, Inc

номер детали ACT8740
подробное описание детали  Six Channel Integrated Power Management IC for Handheld Portable Equipment
PDF  40 Pages
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производитель  ACTIVE-SEMI [Active-Semi, Inc]
домашняя страница  http://www.active-semi.com
Logo ACTIVE-SEMI - Active-Semi, Inc

ACT8740 датащи(HTML) 15 Page - Active-Semi, Inc

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STEP-DOWN DC/DC CONVERTER
ACT8740
Rev PrB, 25-Feb-08
Innovative Products. Active Solutions.
- 15 -
www.active-semi.com
Copyright © 2008 Active-Semi, Inc.
ActivePMU
TM is a trademark of Active-Semi.
I
2CTM is a trademark of Philips Electronics.
REGISTER DESCRIPTIONS
ADDRESS
DATA
D7
D6
D5
D4
D3
D2
D1
D0
10h
R
VRANGE
VSET
11h
R
MODE
12h
13h
R
W/E
OK
W/E
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
Note: See Table 1 for default register settings.
Table 2:
REG1 Control Register Map
Table 3:
REG1 Control Register Bit Descriptions
R: Read-Only bits. Default Values May Vary.
W/E: Write-Exact bits. Read/Write bits which must be written exactly as specified in Table 1 .
ADDRESS
NAME
BIT
ACCESS
FUNCTION
DESCRIPTION
10h
VSET
[5:0]
R/W
REG1 Output Voltage Selection
See Table 4
10h
VRANGE
[6]
R/W
REG1 Voltage Range
Selection
0
Min VOUT = 1.1V
1
Min VOUT = 1.25V
10h
[7]
R
READ ONLY
11h
MODE
[0]
R/W
Mode Selection
0
PWM/PFM
1
Forced PWM
11h
[7:1]
R
READ ONLY
12h
[7:0]
R
READ ONLY
13h
[0]
W/E
13h
OK
[1]
R
REG1 Power-OK
0
Output is not OK
1
Output is OK
13h
[2]
W/E
WRITE-EXACT
13h
[7:3]
R
READ ONLY
WRITE-EXACT



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