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