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ACT8740 数据表(PDF) 21 Page - Active-Semi, Inc

部件名 ACT8740
功能描述  Six Channel Integrated Power Management IC for Handheld Portable Equipment
PDF  40 Pages
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制造商  ACTIVE-SEMI [Active-Semi, Inc]
网页  http://www.active-semi.com
标志 ACTIVE-SEMI - Active-Semi, Inc

ACT8740 数据表(HTML) 21 Page - Active-Semi, Inc

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WLED BIAS DC/DC CONVERTER
ACT8740
Rev PrB, 25-Feb-08
Innovative Products. Active Solutions.
- 21 -
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
DATA
D7
D6
D5
D4
D3
D2
D1
D0
20h
VSET
21h
R
W/E
22h
R
W/E
W/E
W/E
W/E
W/E
W/E
23h
W/E
W/E
W/E
W/E
R
W/E
OK
ON
R
R
R
R
R
R
R
R
R
ADDRESS
NAME
BIT
ACCESS
FUNCTION
DESCRIPTION
20h
VSET
[5:0]
R/W
REG2 Over Voltage Threshold
Selection
See Table 7
20h
[7:6]
R
READ ONLY
21h
[0]
W/E
WRITE-EXACT
21h
[7:1]
R
READ ONLY
22h
[5:0]
W/E
WRITE-EXACT
22h
[7:6]
R
READ ONLY
23h
ON
[0]
R/W
REG2 Enable
0
REG2 Disable
1
REG2 Enable
23h
OK
[1]
R
REG2 Power-OK
0
Output is not OK
1
Output is OK
23h
[2]
W/E
23h
[3]
R
READ ONLY
23h
[7:4]
W/E
WRITE-EXACT
WRITE-EXACT
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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