Серия Зарядные ИС для аккумуляторов BL8573

Belling

Общие характеристики

 Раздел Зарядные ИС для аккумуляторов
Корпус SOT236
Режим функционирования
Тип заряжаемого аккумулятора
Интерфейс данных
Максимальное входное напряжение
Напряжение питания
Максимальный выходной ток
Рабочая температура

Документация на серию BL8573

BL8573 500mA/1.5A Standalone Linear Li-Ion Battery Charge DESCRIPTION FEATURES The BL8573 is a single cell, fully integrated constant current (CC)/constant voltage (CV) Li-ion battery charger. Its compact package with minimum external components requirement makes the BL8573 ideal for portable applications.    No external sense resistor or blocking diode is necessary for the BL8573. Build-in thermal feedback mechanism regulates the charge current to control the die temperature during high power operation or at elevated ambient temperature.   Standalone Capability with no Requirement of External MOSFET, Sense Resistor or Blocking Diode. Complete Linear Charger in Compact Package for Single Cell Lithium-Ion Batteries Programmable Pre-charge, Fast Charge and Termination Current. Constant-Current/Constant-Voltage Operation with Thermal Regulation to Maximize Charge Rate Without Risk of Overheating Charges Single Cell Li-Ion Batteries Directly from USB Port Preset 4.2V/4.35V Charge Voltage with 1% Accuracy Automatic Recharge Charge Status Output Pin C/10 Charge Termination 25A Supply Current in Shutdown 2.9V Trickle Charge Threshold Soft-Start Limits Inrush Current Available in SOT-23-6 and ESOP8 Package The BL8573 has a pre-charge function for trickle charging deeply discharged batteries. The fast charge current can be programmed by an external resistor. CV regulation mode is automatically enabled once the battery’s charging curve reaches the constant voltage portion. The output current then decays and is finally terminated once the charge current drops to 1/10th of the programmed value. The BL8573 keeps monitoring the battery voltage and enables a new charge cycle once the voltage drops by 150mV below the CV value.  Power supply state is constantly monitored and the battery drain current is reduced to minimum value automatically when the BL8573 senses a lack of input power. In its shutdown mode, the BL8573 can reduce the supply current to less than 25μA. A status pin outputs a logic HIGH/LOW to indicate the charging status and the presence of power supply. APPLICATIONS           Other features include charge current monitor, under-voltage lockout. TYPICAL APPLICATION BL8573 www.belling.com.cn 1 Cellular Telephones, PDAs, MP3 Players Charging Docks and Cradles Bluetooths Applications PDF
Документация на BL8573CB6TR 

DESCRIPTION

Дата модификации: 22.09.2014

Размер: 1.22 Мб

12 стр.

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