DESCRIPTION

The MP2615 is a high efficiency switch mode battery charger suitable for 1- or 2- cell lithiumion or lithium-Polymer applications. The MP2615 is capable of delivering 2A of charge current programmable via an accurate sense resistor over the entire input range.

The MP2615 regulates the charge current and full battery voltage using two control loops to achieve high accuracy constant current (CC) charge and constant voltage (CV) charge.

Constant-off-time (COT) mode control allows operation up to 99% duty cycle when the battery voltage is close to the input voltage and in order to keep charge current always at a relative high level.

Battery temperature and charging status are always monitored during each charging cycle. Two status monitor output pins are provided to indicate the battery charging status and input power status. The MP2615 also features internal reverse blocking protection.

The MP2615 is available in a 3mm × 3mm 16-pin QFN package.

FEATURES

 4.75V to 18V Operating Input Voltage

 Up to 99% Duty Cycle Operation

 Up to 2A Programmable Charging Current

 ±0.75% Full Battery Voltage Accuracy

 4.1V/Cell and 4.2V/Cell Selection for Full Battery Voltage

 Full Integrated Power Switches

 Internal Loop Compensation

 No External Reverse Blocking Diode Required

 Preconditioning for Fully Depleted Battery

 Charging Operation Indicator

 Programmable Safety Timer

 Thermal Shutdown Protection

 Cycle-by-Cycle Over Current Protection

 Battery Temperature Monitor and Protection

APPLICATIONS

 Smart Phones

 Portable Hand-held Solutions

 Portable Media Players