參數(shù)資料
型號(hào): LX2201CLQT
廠商: MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP
元件分類: 電源管理
英文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC20
封裝: 4 X 4 MM, PLASTIC, MLPQ-20
文件頁(yè)數(shù): 7/11頁(yè)
文件大?。?/td> 231K
代理商: LX2201CLQT
LX2201
PRODUCTION DATA SHEET
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 5
Copyright
2000
Rev. 1.0, 2004-04-14
WWW
.Microse
m
i
.CO
M
USB Li-Ion Battery Charger
TM
APPLICATION CIRCUITS
ST A R T
V DD > VBAT
YES
DISCHARG E
MO D E
NO
VBAT>60%
C O N D ITIO N
CHARG E
MO D E
NO
YE S
CO NSTA NT C URRENT
CH AR G E M O D E
TEM P <
140
REDUCE
CHARG E
CU RRENT
IIN < IUSB
YE S
REDUCE
CH AR G E
C URRENT
YE S
NO
VBAT> V CV
CO NSTA NT VO LTAG E
CH AR G E M O D E
YE S
NO
IBAT<IMIN
VO LTAG E
M O NITO RIN G
M O DE (STATE).
VBAT<97%
YES
NO
TEM P <
140
REDUCE
CHARG E
C URRENT
IIN < IUSB
YE S
REDUCE
CH AR G E
C URRENT
YE S
NO
YE S
NO
R ETU R N TO STAR T IF
VIN > VB AT O R VIDX C H AN G E STATE.
R E TU R N TO TH E T O P
O F TH E C H AR T.
LX 2201 C O N TR O L F LO W D IA G R A M
VID 0 = 1
YES
SW IT CH
OFF
NO
IUSB D ETER M IN ED BY TH E
S TATE O F VID 1.
VID 0 = 1
YE S
NO
VID0 = 1
YES
NO
Figure 2 – Control Flow Diagram
AA
PP
LL
IICC
AA
TT
IIOO
NN
SS
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