MP26023 28V, 1A Linear Li-Ion Battery Charger with Trickle Charge The Future of Analog IC Technology FEATURES DESCRIPTION Input Surge Up to 28V The MP26023 is a linear, high-performance Adapter or USB Input single cell Li-Ion battery charger. By integrating Programmable Charge Current: 85mA to 1A high voltage input protection into the charger Proprietary Constant Voltage Auto Recharge IC, the MP26023 can tolerate an input surge up Proprietary Over-Voltage Protection to 28V. 0.75% V Accuracy BATT The device features constant current (CC) and <1A Battery Reverse Current constant voltage (CV) charging modes with 90A Standby Current from V IN programmable charge currents (85mA to 1A), Battery Temperature Monitoring programmable battery full threshold, thermal Over Current Protection protection, battery temperature monitoring, AC Adapter Power Good Indicator reverse current blocking and trickle charge. The Charge Status Indicator device also provides AC adapter power good Programmable Soft-Start and charge status indications to the system. Programmable Charge Termination Current MP26023 is available in 10-pin 3mm x 3mm Threshold QFN packages. Tiny 3mm x 3mm QFN Package APPLICATIONS Cell Phones MP3 Players Smart Phones PDAs Digital Cameras MPS and The Future of Analog IC Technology are Registered Trademarks of Monolithic Power Systems, Inc. TYPICAL APPLICATION 3.5V - 28V To system + C I BATT IN C OUT 430 430 V BATT 1uF 1uF - 22uF 1 10 IN BATT 2 9 CHG ISET MP26023 3 8 ACOK IBF 4 7 EN SS ON OFF R1 500k 5 6 C R R SS BF CHG NTC GND 0.1uF 20k 2.3k R NTC 100k MP26023 Rev.0.9 www.MonolithicPower.com 1 12/14/2009 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. 2009 MPS. All Rights Reserved. MP26023 28V, 1A LINEAR LI-ION BATTERY CHARGER WITH TRICKLE CHARGE ORDERING INFORMATION Part Number* Package Top Marking Free Air Temperature (T ) A QFN10 (3mm x 3mm) MP26023DQ 2UYW 40 C to +85C * For Tape & Reel, add suffix Z (e.g. MP26023DQZ). For RoHS compliant packaging, add suffix LF (e.g. MP26023DQLFZ) PACKAGE REFERENCE TOP VIEW IN 1 10 BATT CHG 2 9 ISET ACOK 3 8 IBF EN 4 7 SS NTC 5 6 GND EXPOSED PAD ON BACKSIDE (1) (4) ABSOLUTE MAXIMUM RATINGS Thermal Resistance JA JC IN to GND ....................................0.3V to +28V QFN10 (3mm x 3mm) .............50 ...... 12... C/W All Other Pins to GND.................0.3V to +6.5V (2) Notes: Continuous Power Dissipation (T = +25C) A 1) Exceeding these ratings may damage the device. 2) The maximum allowable power dissipation is a function of the ....2.5W maximum junction temperature T (MAX), the junction-to- J Junction Temperature...............................140C ambient thermal resistance , and the ambient temperature JA T . The maximum allowable continuous power dissipation at Lead Temperature ....................................260C A any ambient temperature is calculated by P (MAX) = (T D J Storage Temperature.............. 65C to +150C (MAX)-T )/ . Exceeding the maximum allowable power A JA dissipation will cause excessive die temperature, and the (3) Recommended Operating Conditions regulator will go into thermal shutdown. Internal thermal shutdown circuitry protects the device from permanent Nominal Supply Voltage V ............3.5V to 5.5V IN damage. Operating Junct. Temp (T ) ..... -40C to +125C J 3) The device is not guaranteed to function outside of its operating conditions. 4) Measured on JESD51-7, 4-layer PCB. MP26023 Rev.0.9 www.MonolithicPower.com 2 12/14/2009 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. 2009 MPS. All Rights Reserved.