MP26121

MP26121 28V, 1A Li + Linear Battery Charger with 10% Battery-Full Threshold and Flexible NTC Interface DESCRIPTION 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 a QFN-10 (3mmx3mm) package. FEATURES 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 Charge-Timer Fault and Charge Status Indicators APPLICATIONS Cell Phones Digital Cameras Smart Phones PDAs MP3 Players “MPS” and “The Future of Analog IC Technology” are Registered Trademarks of Monolithic Power Systems, Inc. TYPICAL APPLICATION MP26121 Rev. 1.0 www.MonolithicPower.com 1 5/18/2023 M...