MP2612 Datasheet, PDF (1/20 Pages) Monolithic Power Systems – 2A,24V Input, 600kHz 2-3 Cells Switching Li-Ion Battery Charger

The Future of Analog IC Technology
MP2612
2A,24V Input, 600kHz
2-3 Cells Switching Li-Ion Battery Charger
DESCRIPTION
The MP2612 is a monolithic switching charger
for 2-3 cells series Li-Ion cells battery with a
built-in internal power MOSFET. It achieves up
to 2A charge current with current mode control
for fast loop response and easy compensation.
The charge current can be programmed by
sensing the current through an accurate sense
resistor.
MP2612 regulates the charge current and
charge voltage using two control loops to
realize high accuracy CC charge and CV
charge.
Fault condition protection includes cycle- by-
cycle current limiting and thermal shutdown.
Other safety features include battery temperature
monitoring, charge status indication and
programmable timer to finish the charging cycle.
The MP2612 requires a minimum number of
readily available standard external components.
The MP2612 is available in 16-pin 4mm x 4mm
QFN package.
FEATURES
 Charges 2-3 Cells Series Li-Ion Battery
Packs
 Wide Operating Input Range
 Up to 2 A Programmable Charging Current
 ±0.75% V_BATT Accuracy
 0.2Ω Internal Power MOSFET Switch
 Up to 90% Efficiency
 Fixed 600kHz Frequency
 Preconditioning for Fully Depleted Batteries
 Charging Operation Indicator
 Input Supply and Battery Fault Indicator
 Thermal Shutdown
 Cycle-by-Cycle Over Current Protection
 Battery Temperature Monitor and Protection
APPLICATIONS
 Distributed Power Systems
 Chargers for 2-Cell or 3-Cell Li-Ion Batteries
 Pre-Regulator for Linear Regulators
 Smart Phones
 Net-book
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Monolithic Power Systems, Inc.
TYPICAL APPLICATION
Figure 1—Standalone Switching Charger
MP2612 Rev. 1.0
www.MonolithicPower.com
1
9/7/2011
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