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AXP209 Datasheet(PDF) 32 Page - List of Unclassifed Manufacturers

Part No. AXP209
Description  Enhanced single Cell Li-Battery and Power System Management IC
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Maker  ETC2 [List of Unclassifed Manufacturers]
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AXP209 Datasheet(HTML) 32 Page - List of Unclassifed Manufacturers

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AXP209
Enhanced single Cell Li-Battery and Power System Management IC
10.4 REG 04-0FH: Data Cache
Note: As long as the external power supply, battery or backup battery power exists, this data will not be
lost.
10.5 REG 12H:Power Output Control
The default value: XXH
Bit
Description
R / W
Default
value
7
Reserved, can not be changed
RW
X
6
LDO3 Switch Control
0:Shut down; 1:Turn on
RW
X
5
Reserved, can not be changed
RW
X
4
DC-DC2 Switch Control
0:Shut down; 1:Turn on
RW
X
3
LDO4 Switch Control
RW
X
2
LDO2 Switch Control
RW
X
1
DC-DC3 Switch Control
RW
X
0
EXTEN Switch Control
RW
X
10.6 REG 23H: DC-DC2 output voltage setting
The default value: XXH
Bit
Description
R / W
Default
value
7-6
Reserved, can not be changed
5-0
DC-DC2 The output voltage is set
0.7-2.275V,25mV / step
RW
X
Vout = [0.7+ (Bit5-0) * 0.025] V
10.7 REG 25H: DC-DC2 / LDO3 Dynamic voltage scaling parameter settings
The default value: 00H
Bit
Description
R /
W
Default
value
7-4
Reserved, can not be changed
3
LDO3 VRC Enable Control
RW
0
0:Turn on; 1:Shut down
2
DC-DC2 VRC Enable Control
RW
0
0:Turn on; 1:Shut down
1
LDO3 VRC soft start control
0: 25mV / 15.625us = 1.6mV / us
RW
0
1: 25mV / 31.250us = 0.8mV / us
0
DC-DC2 VRC soft start control
0: 25mV / 15.625us = 1.6mV / us
RW
0
1: 25mV / 31.250us = 0.8mV / us
Confidential
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