降压充电两节或多节A380
SWITCH-MODE TWO CELL LI-ION BATTERY CHARGER
DESCRIPTION
The A308 is a monolithic switching charger for
2-series Li-ion cells battery, It achieves up to 2A
charge current with voltage mode PWM step- down
(buck) switching architecture.A308 regulates the
battery voltage and charge current with CV(constant
voltage) and CC(constant current) loops. Fault
condition includes thermal shutdown、time out and
output short. Other safety features include battery
temperature monitoring and charge status indication.
The A308 is available in 14-pin SOP package.
APPLICATIONS
● Handheld Products
● Portable Equipment
● Distributed Power Systems
● Portable DVD Players
● Notebook
● Chargers for 2-cell Lion Batteries
FEATURES
● Maximum Duty Cycle
● 1% Charge Voltage Accuracy
● Programmable Charge Current Up To 2A
● Fixed 400kHz Frequency
● Suitable For 2-Cell Li-Ion Batteries
● Automatic Battery Recharge
● Soft Start
● Battery Temperature Monitoring
● Thermal Shutdown And Protection
● Status Indication
● 18V Maximum Input Voltage Rating
● Ambient Temperature Range: -20
● 14-Lead SOP Package Available
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