參數(shù)資料
型號: LX2201
廠商: Microsemi Corporation
英文描述: USB Li-Ion Battery Charger
中文描述: 的USB鋰離子電池充電器
文件頁數(shù): 5/11頁
文件大?。?/td> 172K
代理商: LX2201
LX2201
P
RODUCTION
D
ATA
S
HEET
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 5
Copyright
2000
Rev. 1.2b, 2005-04-13
W
M
.
C
USB Li-Ion Battery Charger
TM
A P P L I C A T I O N C I R C U I T S
START
V
DD >
V
BAT
YES
DISCHARGE
MODE
NO
V
BAT
>60%
CONDITION
CHARGE
MODE
NO
YES
CONSTANT CURRENT
CHARGE MODE
TEMP <
140
REDUCE
CHARGE
CURRENT
I
IN <
I
USB
YES
REDUCE
CHARGE
CURRENT
YES
NO
NO
V
BAT
> V
CV
CONSTANT VOLTAGE
CHARGE MODE
YES
NO
I
BAT
<I
MIN
VOLTAGE
MONITORING
MODE (STATE).
V
BAT
<97%
YES
NO
TEMP <
140
REDUCE
CHARGE
CURRENT
I
IN <
I
USB
YES
REDUCE
CHARGE
CURRENT
YES
NO
NO
YES
NO
RETURN TO START IF
VIN > VBAT OR VIDX CHANGE STATE.
RETURN TO THE TOP
OF THE CHART.
LX2201 CONTROL FLOW DIAGRAM
VID0 = 1
YES
SWITCH
OFF
NO
I
USB
DETERMINED BY THE
STATE OF VID1.
VID0 = 1
YES
NO
VID0 = 1
YES
NO
Figure 2 –
Control Flow Diagram
A
P
P
L
I
C
A
T
I
O
N
S
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