ACE4559P42DFH datasheet(12/15 Pages) ACE

номер детали	ACE4559P42DFH

подробное описание детали	150mA Single Cell Li-ion Battery Charger, 0.1mA Termination, 45nA Battery leakage Current

PDF	15 Pages

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производитель	ACE [ACE Technology Co., LTD.]

домашняя страница	http://www.ace-ele.com

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ACE4559P

150mA Single Cell Li-ion Battery Charger, 0.1mA Termination, 45nA Battery leakage Current

VER 1.1

Charge Status Indicator (CHGb)

The charge status output indicator is an open drain circuit. The indicator has two different states:

pull-down (~16mA), and high impedance. The pull-down state indicates that the ACE4559P is in a charge

cycle. High impedance indicates that the charge cycle is complete. The CHGb also can be used to detect

the charge states by a microprocessor with a pull-up resistor.

Shutdown Mode

The ACE4559P will be put into shutdown mode when the battery voltage is higher than the VCC voltage or

VCC-VBAT is less than VASD. This reduces the battery drain current to less than 0.5uA and the supply

current to less than 27uA. A new charge cycle can be initiated when the VCC-VBAT is high than VASD.

The ACE4559P also be put into shutdown mode when VCC voltage down to UVLO threshold. In this state,

the CHGb pin is high impedance state. The CHGb pin is also in a high impedance state if the charge cycle

is completed.

Automatic Recharge

Once the charge cycle is terminated, the ACE4559P continuously monitors the voltage on the BAT pin

using a comparator with a 2ms filter time (TRECHRG). A charge cycle restarts when the battery voltage falls

below delta VRECHRG (which corresponds to approximately 80% to 90% battery capacity). This ensures

that the battery is kept at or near a fully charged condition and eliminates the need for periodic charge

cycle initiations. CHGb output enters a pull-down state during recharge cycles.

ACE4559P42DFH датащи(PDF) 12 Page - ACE Technology Co., LTD.