DESCRIPTION

The MP2659 is a highly integrated switching

charger designed for portable devices with 3-cell

to 6-cell series Li-ion or Li-polymer battery packs.

The device achieves up to 3A of charge current

with different battery regulation voltages.

The device operates under a maximum 36V DC

input voltage and hold-off up to 45V. When an

input power supply is present, the MP2659

charges the battery with three phases: precharge, constant current charge, and constant

voltage charge.

Power management is based on the input

current and input voltage. If the input current

exceeds the preset input current limit, or the

input voltage decreases to the preset input

voltage limit, the MP2659 automatically

decreases the charge current to protect the input

power supply from overload.

To guarantee safe operation, the MP2659 offers

robust protection features such as battery overvoltage protection, battery temperature sensing

and protection, thermal shutdown, and a

charging safety timer.

The MP2659 is available in a QFN-19

(3mmx3mm) package.

FEATURES

• Up to 36V Operating Input Voltage

• 45V Max Sustainable Voltage when Not

Switching

• Up to 3A Charge Current

• 3-Cell to 6-Cell Series with 3.6V/4.2V/4.35V

/4.15V Battery Regulation Voltage for Each

Cell

• 0.5% Battery Regulation Voltage Accuracy

• Integrated Input Current Sensing and

Reverse Blocking FET

• Internal Loop Compensation

• Input Current Limit Regulation

• Minimum Input Voltage Regulation

• Charge Operation Indicator

• Dead Battery Pack Recovery

• Battery Over-Voltage Protection

• Charge Safety Timer

• Battery NTC Thermal Monitor

• Available in a QFN-19 (3mmx3mm)

Package

APPLICATIONS

• Industrial Medical Equipment

• Power Tools

• Robots and Portable Vacuum Cleaners

• Wireless Speakers