ReferenceDesignLibrary

EA2803QJ-T: 5.07V @ 2.4A, 4.5 ~ 5.5V in, Lithium Ion

Summary

ACT2803 is a space-saving and dedicated single chip solution for dual-cell battery charge and discharge. It takes 5V USB input source to charge adual cell battery with boost configuration in three phases: preconditioning, constant current, and constant voltage. Charge is terminated when the current reaches 10% of the fast charge rate. The battery charger is thermally regulated at 110°C with charge current foldback.

ACT2803 provides 4 LED drive pins for battery capacity level and charge status indication to indicate 25%, 50%, 75%, and 75% above battery level with battery impedance compensation. The LED indication patterns are programmable .

Specifications

Manufacturer Active-Semi International Inc.
Category Power Management
Sub-Category Battery Chargers
Eval Board Part Number 1488-1099-ND
Eval Board Supplier Active-Semi International Inc.
Eval Board Normally In Stock
Cell Type Lithium Ion, Li-Ion
Configuration 2 in Series
Voltage In 4.5 ~ 5.5 V
Voltage Out 5.07 V
Current Out 2.4 A
Features Cell Preconditioning
Current Limit (Adj. or Fixed)
Over Charge Protection
Over Discharge Protection
Over Voltage Protection
Short Circuit Protection
Status Indication
Thermal Protection
Quiescent Current [Typical] - Not Given
Sleep Mode Current [Typical] Not given
Component Count + Extras 58 + 2
Application / Target Market USB Powered Devices
Design Author Active-Semi
Main I.C. Base Part ACT2803
Quiescent Current [Maximum] - Not Given
Sleep Mode Current [Maximum] Not given

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