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CE3150 Datasheet Preview

CE3150 Datasheet

Standalone Linear Li-Ion battery charger

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Standalone Linear Li-Ion battery charger with
Thermal Regulation
CE3150 Series
„ INTRODUCTION:
The CE3150 is a complete constant-current
constant-voltage linear charger for single cell
Li-Ion batteries. It’s SOT package and low external
component count make the CE3150 especially
well-suit for portable applications. Furthermore,
the CE3150 is specifically designed to work within
USB Power specifications.
No external sense resistor is needed and no
blocking diode is required due to internal MOSFET
architecture. Thermal feedback regulates the
charge current to limit the die temperature. The
charge voltage is fixed at 4.2V and the charge
current can be programmed externally with a
single resistor. The CE3150 automatically
terminates the charge cycle when the charge
current drops to 1/10th the programmed value
after the final float voltage is reached. The
CE3150 automatically re-starts the charge if the
battery voltage falls below an internal threshold.
„ FEATURES:
z Programmable Charge Current Up to 800mA
z No External MOSFET, Sense Resistor or
Blocking Diode Required
z Charges Single Cell Li-Ion Batteries Directly
from USB Port
z Preset 4.2V Charge Voltage with ±1%
Accuracy
z Constant-Current/Constant-Voltage
Operation with Thermal Regulation to
Maximize Charge Rate Without Risk of
Overheating
z Charge Status Output Pin
z 30μA Shutdown Current
z 70μA Standby Current
z Complete Linear Charger in SOT23-5
Package for Single Cell Lithium-Ion Batteries
z C/10 Charge Termination
z Soft-Start Limits Inrush Current
z Automatic Recharge
„ APPLICATIONS
z Cellular Telephones, PDAs
z Charging Docks and Cradles
z Portable MP3 Players
z Bluetooth Applications
„ PIN CONFIGURATION:
„ ORDER INFORMATION:
CE3150①②
DESIGNATOR
SYMBOL
A
M
DESCRIPTION
Standard
PackageSOT-23-5L
V1.0
1(9)




Chipower

CE3150 Datasheet Preview

CE3150 Datasheet

Standalone Linear Li-Ion battery charger

No Preview Available !

Standalone Linear Li-Ion Battery Charger with Thermal Regulation
CE3150 Series
PIN NUMBER
1
2
3
4
5
Tabel1. Pin Description
PIN NAME
CHG
GND
BAT
VCC
PROG
FUNCTION
Open-Drain Charges Status Output
Ground
Charge Current Output. The positive side of battery
Input supply Voltage
Charge Current Program, Charge Current Monitor
and Shutdown Pin
„ BLOCK DIAGRAM
120
Tdie
TA
CA
VCC
4
-+
MA
3 BAT
5μA
R1
VA
VREF
R2
CHG 1
SHDN
C1
C2
1.0V
R3
0.1V
R4
R5
STANDBY
C3
2.9V BAT
VCC
3μA
5
PROG
2
GND
V1.0
2(9)


Part Number CE3150
Description Standalone Linear Li-Ion battery charger
Maker Chipower
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CE3150 Datasheet PDF





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