The Future of Analog IC Technology
The MP26121 is a linear, high-performance
single cell Li-Ion/Li-Polymer battery charger. By
integrating high voltage input protection into the
charger IC, the MP26121 can tolerate an input
surge up to +28V.
The device features constant current (CC) and
constant voltage (CV) charging modes with
programmable charge currents (200mA to 1A),
current blocking, and trickle charge. The device
also provides fault and charge status
indications to the system.
For guaranteed safe operation, the MP26121
reduces charge current when the device
reaches high temperature (due to limited PCB
space). Other safety features include battery
temperature monitoring and programmable
timer to complete the charging cycle.
The MP26121 is available in 10-pin 3mm x
3mm QFN packages.
28V, 1A Li + Linear Battery Charger
with 10% Battery-Full Threshold
and Flexible NTC Interface
• Interfaces to Many NTC Resistor Values
• Proprietary VIN Surge Protection up to 28V
• Programmable Charge Current up to 1A
• 1% Voltage Accuracy
• 10% Battery-Full Threshold
• No Reverse Blocking Diode Required
• Intelligent Thermal Management
• Trickle Charge
• 7V Input OVP
• Auto Recharge
• Fault and Charge Status Indicators
• Cell Phones
• Digital Cameras
• Smart Phones
• MP3 Players
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of
Monolithic Power Systems, Inc.
MP26121 Rev. 0.9
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2008 MPS. All Rights Reserved.