lx2201 Microsemi Corporation, lx2201 Datasheet - Page 5

• Manufacturer Part Number: lx2201
• Description: Usb Li-ion Battery Charger
• Manufacturer: Microsemi Corporation

Copyright ¤ 2000
Rev. 1.2b, 2005-04-13
TM
N O
C O N S TAN T C U R R E N T
CO NSTANT VO LTAG E
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
C H AR G E M O D E
C H AR G E M O D E
LX2201 C O N TR O L FLO W D IAG R AM
V
V
TEM P <
V
VID 0 = 1
I
DD >
B AT
IN <
B AT
START
>60%
> V
YE S
I
YES
V
US B
YE S
YE S
YE S
140
B AT
C V
YE S
N O
N O
N O
VID0 = 1
N O
N O
VIN > VB AT O R VIDX C H AN G E STATE.
C O N D ITIO N
I
YES
U SB
C H A R G E
A P P L I C A T I O N C I R C U I T S
M O D E
C U R R E N T
C U R R E N T
D ETER M IN ED BY TH E
R ETUR N TO STAR T IF
R E D U C E
C H AR G E
R E D U C E
C H A R G E
S TATE O F VID 1.
Figure 2 – Control Flow Diagram
Integrated Products Division
N O
®
Microsemi
D IS C H A R G E
VID 0 = 1
USB Li-Ion Battery Charger
M O D E
NO
R ETU R N TO TH E TO P
P
O F TH E C H AR T.
M O D E (STATE).
M O NITO RIN G
RODUCTION
YES
TEM P <
V
VO LTAG E
I
I
BAT
IN <
B AT
N O
<I
<97%
I
US B
YE S
YE S
YE S
Y ES
M IN
140
SW ITCH
N O
O FF
N O
N O
D
ATA
C U R R E N T
C U R R E N T
S
R E D U C E
C H AR G E
R E D U C E
C H A R G E
HEET
LX2201
Page 5