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ACT8712 датащи(PDF) 18 Page - Active-Semi, Inc

номер детали ACT8712
подробное описание детали  Four Channel Integrated Power Management IC for Handheld Portable Equipment
PDF  36 Pages
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производитель  ACTIVE-SEMI [Active-Semi, Inc]
домашняя страница  http://www.active-semi.com
Logo ACTIVE-SEMI - Active-Semi, Inc

ACT8712 датащи(HTML) 18 Page - Active-Semi, Inc

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STEP-DOWN DC/DC CONVERTERS
Rev0, 25-Feb-08
ACT8712
Innovative Products. Active Solutions.
- 18 -
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
Note: See Table 1 for default register settings.
Table 5:
REG2 Control Register Map
Table 6:
REG2 Control Register Bit Descriptions
ADDRESS
NAME
BIT
ACCESS
FUNCTION
DESCRIPTION
20h
VSET
[5:0]
R/W
REG2 Output Voltage Selection
See Table 7
20h
VRANGE
[6]
R/W
REG2 Reference Voltage
Selection
0
Min VOUT = 1.1V
1
Min VOUT = 1.25V
20h
[7]
R
READ ONLY
21h
MODE
[0]
R/W
Mode Selection
0
PFM/PWM
1
Forced PWM
21h
[7:1]
R
READ ONLY
22h
[5:0]
R
READ ONLY
22h
[7:6]
W/E
WRITE-EXACT
23h
[0]
W/E
23h
OK
[1]
R
REG2 Power-OK
0
Output is not OK
1
Output is OK
23h
[2]
W/E
WRITE-EXACT
23h
[3]
R
READ ONLY
23h
[4]
W/E
WRITE-EXACT
23h
[7:5]
R
READ ONLY
WRITE-EXACT
ADDRESS
DATA
D7
D6
D5
D4
D3
D2
D1
D0
20h
R
VRANGE
VSET
21h
R
MODE
22h
R
23h
R
W/E
R
W/E
OK
W/E
W/E
W/E
R
R
R
R
R
R
R
R
R
R
R
R
R
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.



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