ACE4702 datasheet(7/15 Pages) ACE

Teilenummer	ACE4702

Bauteilbeschribung	2 Cell Li-ion Battery Charger IC

PDF	15 Pages

Scroll/Zoom	100%

Hersteller	ACE [ACE Technology Co., LTD.]

Direct Link	http://www.ace-ele.com

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7 / 15 page

ACE4702

2 Cell Li-ion Battery Charger IC

VER 1.1

The charging profile is shown in Figure 2.

Figure 2 The Charging Profile

Application Information

Undervoltage Lockout (UVLO)

An undervoltage lockout circuit monitors the input voltage and keeps the charger off if VCC falls below

6V(Typical).

Trickle Charge Mode

At the beginning of a charge cycle, if the battery voltage is below 5.6%V, the charger goes into trickle

charge mode with the charge current reduced to 15% of the full-scale current.

Charge Current Setting

The full-scale charge current, namely the charge current in constant current mode, is decided by the

following formula:

Where:

ICH is the constant charge current

RCS is the resistor between the CSP pin and BAT pin

End-of-Over Charge Current Setting

End-of-over charge current can be set by connecting a resistor from EOC pin to GND, and is decided by

the following equation:

ACE4702 Datenblatt(PDF) 7 Page - ACE Technology Co., LTD.