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4.35V锂电池充电ic芯片pdf
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2015-08-06
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4.35V锂电池充电ic芯片pdf
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03
40
DATASHEET
ShenZhen Fanhai Microelectronics Co.,Ltd
FS
www.fanhv.com
深圳市泛海微电子有限公司
深圳市泛海微电子有限公司 深圳市泛海微电子有限公司
www.fanhv.com
1
Preset 4.2/4.34V charge voltage with
The charge voltage is fixed at 4.2/4.34V,and
FS4003
FS4003
FS4003
FS4003
FS4003
General Description Features
●Cellular Telephones, PDAs, MP3 Players
●Charging Docks and Cradles
●Bluetooth Applications
Applications
is a complete constant-current/constant
voltage linear charger for single cell lithium-ion
batteries. Furthermore the is specifically
designed to work within USB power specifications.
No external sense resistor is needed and no
blocking diode is required due to the internal
PMOSFET architecture .Thermal feedback regulates
the charge current to limit the die temperature during
high power operation or high ambient
temperature .
the charge current can be programmed externally with
a single resistor. The automatically
terminates the charge cycle when the charge current
drops to 1/10
th
the programmed value after the final
float voltage is reached.
When the input supply (wall adapter or USB supply)
is removed the automatically enters a low
current state dropping the battery drain current to less
than 2μA.The can be put into shutdown
mode reducing the supply current to 55μA.
Other features include charge current monitor,
undervoltage lockout, automatic recharge and a
status.
●Protection of battery cell reverse connection
●No MOSFET sense resistor or blocking diode
required
●Complete Linear Charger in ThinSOT Package for
Single Cell Lithium-Ion Batteries
●Constant-Current/Constant-Voltage operation with
thermal regulation to maximize Rate Without risk
of overheating.
● ±1% accuracy
● Automatic Recharge
●Charges Single Cell Li-Ion Batteries Directly from
USB Port
●C/10 charge termination
● 55μA supply current in shutdown
● 2.9V trickle current charge threshold
● Soft-Start limits inrush current
●Charge Status Output Pin
●Available in SOT23-5 Package
03
40
FS
2
www.fanhv.com
深圳市泛海微电子有限公司
深圳市泛海微电子有限公司 深圳市泛海微电子有限公司
www.fanhv.com
600mA Single Cell Li-Ion Charger Typical charge cycle(750mAh batter
Pin Configuration
SOT23-5
CONSTANT CURRENT
CHARGE CURRENT(mA)
CONSTANT
POWER
CONSTANT
VOLTAGAE
V
CC
=5V
θ
JA
=130℃/W
R
PROG
=1.65K
T
A
=25℃
CHARGE
TERMINATED
0
0.25
0.5 0.75 1.0 1.25 1.5 1.75
2.0
TIME(HOURS)
4.75
4.5
4.25
4.0
3.75
3.5
3.25
3.0
BATTERY VOLTAGE(V)
700
600
500
400
300
200
100
0
1
2
3
4
5
CHRG
GND
BAT
VCC
PROG
LY3085A
1.65K
10UF
600MA
4.2V
03
40
FS
3
www.fanhv.com
深圳市泛海微电子有限公司
深圳市泛海微电子有限公司 深圳市泛海微电子有限公司
www.fanhv.com
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