MP2607 Li + LINEAR Charger WithSystem Power Path Management0 pages

MP2607 Li + LINEAR Charger WithSystem Power Path Management The Future of Analog IC Technology, DESCRIPTION MP2607 is a highly-integrated single-cell Li-lon/Li-Polymer battery charger with system power path management function. It takes input from either AC adapter or USB port to supply the system and charge the battery independently. The charger section features trickle charge, high-accuracy constant current (CC) and constant voltage (CV) regulation, charge termination and charge status. The system power path management function ensures continuous supply to the system by automatically selecting the input, the battery or both to power the system. This section features a low drop-out regulator from input to system, and a 50mQ switch from battery to system. Power path management separates charging current from system load, which allows proper charge termination and keeps battery stay fully-charged. It also allows instantaneous power up of system with a deeply discharged battery. MP2607 is available in 14pin 3mm*4mm QFN package. FEATURES  Fully Autonomous Charger for Single-Cell Li-Ion/Polymer Batteries Օ Selectable Input Power Sources from AC Adapter or USB Port  Built-in Current Limit for USB Port Օ Complete Power Path Management for Simultaneously Powering the System and Charging the Battery  0.75% Charging Voltage Accuracy Օ 12V Maximum Voltage for the Input Source  Programmable Charging Current Օ Built-in Timer for Charge Termination  No External Blocking Diode Required Օ Tiny 3x4 QFN Package APPLICATIONS  Smart Handheld Devices Օ Cell Phones, PDAs, MP3 Players  Digital Cameras, GPS Օ Handheld Test Equipment 'MPS" and 'The Future of Analog IC Technology" are Registered Trademarks of Monolithic Power Systems, Inc. TYPICAL APPLICATION AC adapter USB port Mode Rti IN MP2607 SYS MODE ICHSET BATT TMR STAT1 NTC CEB STAT2 gnd System CEB 4.7mF 2.5k rthr ^ RT2<> ctmr_I_ H < 1MF MP2607 Rev. 1.0 1/5/2011 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2011 MPS. All Rights Reserved. 1