參數(shù)資料
型號: AN32502A
英文描述: For Information·Communication - PDA
中文描述: 信息·通訊-掌上電腦
文件頁數(shù): 23/45頁
文件大?。?/td> 574K
代理商: AN32502A
23
SDF00034AEB
AN32502A
Publication data: November 2002
VB
nRESET
S1 (PWE_EN)
Ch.1output
Ch.3/ Ch.4 output
About 2.0 V
3.525 V
S3/ S4 (High: On)
Ch.2 LDO output
Ch.2 output
(VDD1)
3.1 V
3.525 V
3.1 V
2.0 V
Ch.5
BAT_FLT
3.4 V
3.4 V
(Backup DC-DC)
2.2V
2.2 V
3.0 V
Technical Data (continued)
6-2. Sequence chart (2)
All channel operating sequence
(Internal reset:
I
2
C initialize)
S2 : Low (On) fixed
Coin battery
charging circuit
Coin battery
voltage
Operate by
I
2
C command
Operate by
I
2
C command
Pulled up to VDD
DC-DC
operate
I
2
C command can be receipted after VDD1 rise up.
Charging circuit
operating
Charging circuit
operating
DC-DC
operate
Operating voltage
VB
=
2.8 V to 5.8 V
Note) *: When power supply turns on, ch.2 output and charging circuit keep to off mode until battery voltage (VB) goes up to 3.525 V, even
though I
2
C command can be receipted after power on reset operation.
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