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LX2207ILD
P1-P3
P4-P6
P7-P9
P10-P12
P13-P14
LX2207
P
RODUCTION
D
AT
A
S
HEET
Microsemi
Analog Mixed Signal Group
11861 Western Avenue, Garden Grove, CA. 9284
1, 714-898-8121, Fax: 714-893-2570
Page 4
Copyright
©
2007
Rev. 1.0a, 2007-10-08
WWW.
Microsemi
.
COM
Three Level Lithium Ion Battery Charger
TM
®
SIMPLIFIED BLOCK DIAGRAM
IN
BAT
CHARGE
CONTROL
GND
HIGH
CHARGI
NG
CURREN
T
HCP
TEMPERATURE
CONTROL
CONSTANT
VOLTAGE
CONTROL
CHARGE
TERMINATION
CONTROL
ENABLE
SD
UVLO
+
-
STAT
LOW
CHARGING
CURRENT
LCP
H/L
DCOK
TMP
COND.
CURRENT
CONDITIONING
THRESHOLD
20%
B
B
L
L
O
O
C
C
K
K
D
D
I
I
A
A
G
G
R
R
A
A
M
M
LX2207
P
RODUCTION
D
AT
A
S
HEET
Microsemi
Analog Mixed Signal Group
11861 Western Avenue, Garden Grove, CA. 9284
1, 714-898-8121, Fax: 714-893-2570
Page 5
Copyright
©
2007
Rev. 1.0a, 2007-10-08
WWW.
Microsemi
.
COM
Three Level Lithium Ion Battery Charger
TM
®
CONTROL LOGIC DIAGRAM
START
V
IN >
V
BAT
YES
SLEEP
NO
V
BAT
>60%
CONDITION
CHARGE
MODE
NO
YES
CONSTANT CURRENT
CHARGE MODE
TEMP <
140
REDUCE
CHARGE
CURRENT
I
CC <
I
MAX
YES
REDUCE
CHARGE
CURRENT
YES
NO
NO
V
BAT
>
V
CV
CONSTANT VOLTAGE
CHARGE MODE
YES
NO
I
BAT
<I
TAPER
VOLTAGE
MONITORING
MODE (STATE).
V
BAT
<97%
YES
NO
TEMP <
140
REDUCE
CHARGE
CURRENT
I
CC<
I
MAX
YES
REDUCE
CHARGE
CURRENT
YES
NO
NO
YES
NO
RETURN TO START IF
VIN > VBAT, UVL
O, SD, CHANGE STATE.
RETURN TO THE TOP
OF THE CHART.
I
MAX
DETERMIN
ED BY T
HE
STATE OF H/L, R
HCP
, R
LCP
and 20%.
UVLO
YES
NO
SD
YES
NO
I
TAPER
DETERMINE
D BY
R
HCP
.
A
A
P
P
P
P
L
L
I
I
C
C
A
A
T
T
I
I
O
O
N
N
S
S
LX2207
P
RODUCTION
D
AT
A
S
HEET
Microsemi
Analog Mixed Signal Group
11861 Western Avenue, Garden Grove, CA. 9284
1, 714-898-8121, Fax: 714-893-2570
Page 6
Copyright
©
2007
Rev. 1.0a, 2007-10-08
WWW.
Microsemi
.
COM
Three Level Lithium Ion Battery Charger
TM
®
APPLICATION CIRCUITS
Adapter or USB
Power Pin
Shutdown
Current
Programming
Control Logic
Status
Battery
Temperature
Lockout
Sensing
IN
BAT
SD
H/L
HCP
TMP
DCOK
STAT
GND
CMP
Charging
Full
Power On
Battery
LCP
2.49k
2.49k
2.49k
12.1k
19.6k
24.9k
121k
0.47u
Grounded Pin
in USB cable.
Leave open in
Adapter Cable.
10k
LX2207
USB Hi/Low
20%
1k
Figure 1 –
Typical Applicat
ion – 750mA adapter charge current
and 500mA or 100mA maximum
USB charge currents. A grounded spar
e pin in the USB power cable can be used to sense
w
hen
the 500mA USB current po
w
er source is being
used. T
his application also uses three LE
D
indicators for Power attached,
Battery Charging and Battery full.
This configuration also
implements circuit
ry to lockout battery charging if t
he battery is less than 0C or greater than 60
C.
A
A
P
P
P
P
L
L
I
I
C
C
A
A
T
T
I
I
O
O
N
N
S
S
P1-P3
P4-P6
P7-P9
P10-P12
P13-P14
LX2207ILD
Mfr. #:
Buy LX2207ILD
Manufacturer:
Microchip / Microsemi
Description:
Battery Management Linear Lithium Ion
Lifecycle:
New from this manufacturer.
Delivery:
DHL
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Ups
TNT
EMS
Payment:
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