MP2619
2A, 24V Input, 600kHz
2-3 Cell Switching Li-Ion Battery Charger
With System Power Path Management
MP2619 Rev. 1.01 www.MonolithicPower.com 1
5/28/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
The Future of Analog IC Technology
DESCRIPTION
The MP2619 is a monolithic switching charger
for 2-3 cell Li-Ion battery packs 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.
MP2619 regulates the battery voltage and
charge current using two control loops to realize
high accuracy CC charge and CV charge.
The system power path management function
ensures continuous supply to the system by
automatically selecting the input or the battery to
power the system. Power path management
separates charging current from system load.
When the MP2619 realizes current sharing of
the input current, charge current will drop down
according to the increase of the system current.
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 MP2619 is available in a 28-pin, 4mm x 5mm
QFN package.
FEATURES
Charges 2-3 cell Li-Ion Battery Packs
Wide Operating Input Range
Up to 2A Programmable Charging Current
Power Path Management with Current
Sharing
±0.75% V
BATT
Accuracy
0.2 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
Netbook PC
Distributed Power Systems
Chargers for 2-Cell or 3-Cell Li-Ion
Batteries
Pre-Regulator for Linear Regulators
All MPS parts are lead-free and adhere to the RoHS directive. For MPS green
status, please visit MPS website under Products, Quality Assurance page.
“MPS” and “The Future of Analog IC Technology” are registered trademarks o
Monolithic Power Systems, Inc.
