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Analog Intergrations Corporation - 1 Cell Linear Lithium-Ion Battery Charger

Numéro de référence AIC1790
Description 1 Cell Linear Lithium-Ion Battery Charger
Fabricant Analog Intergrations Corporation 
Logo Analog Intergrations Corporation 





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AIC1790 fiche technique
AIC1790
1 Cell Linear Lithium-Ion Battery Charger
FEATURES
Complete Linear Charger for 1 Cell Lithium-Ion
Battery
Ideal for Low-Dropout Designs for Single-Cell Li-
ion or Li-Pol Packs in Space Limited Applications
No External MOSFET, Sense Resistor or Block-
ing Diode Required
Up to 1000mA Charge Current
Reverse Leakage Protection Prevents Battery
Drainage
Integrated Current and Voltage Regulation
Charge Termination by 1/10 Full Charge Current
Precharge With Safety Timer
Status Outputs for LED or System Interface Indi-
cates Charge and Fault Conditions
Battery Insertion and Removal Detection
Available in Tiny Thermally Enhanced MSOP10
Exposed Pad Package, SOP-8 Exposed Pad
Package and 3mm X 3mm DFN-10 Exposed Pad
Package
APPLICATIONS
Cellular Phones
Handheld Devices
Digital Still Cameras
MP3 Players
PDAs
Charging Docks and Cradles
USB Chargers
GENERAL DESCRIPTION
The AIC1790 is highly integrated Li-ion and Li-Pol
linear charge devices targeted at space limited
portable applications. It offers integrated power
MOSFET and current sensor, reverse blocking pro-
tection, high accuracy current and voltage regula-
tion, charge status, and charge termination, in a
small package.
The AIC1790 charges the battery in three phases,
precharge, constant current and constant voltage.
Charge is terminated based on 1/10 full charge
current. An internal charge timer provides a backup
safety feature for charge termination. AIC1790 au-
tomatically restarts the charge if the battery voltage
falls below an internal threshold. AIC1790 automat-
ically enters sleep mode when VCC supply is re-
moved.
In addition to the standard features, AIC1790 offers
a multitude of additional features. These include
temperature-sensing input for detecting hot or cold
battery packs; power good (PG) output indicating
the presence of input power.
Analog Integrations Corporation
Si-Soft Research Center
3A1, 1 Li-Hsin 1st Rd., Science Park, Hsinchu 300, Taiwan, R.O.C.
TEL: 886-3-5772500,
FAX: 886-3-5772510 www.analog.com.tw
DS-1790G-04 20140716
1

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