MP2602 28V, 1A Linear Li-Ion Battery Charger with Trickle Charge The Future of Analog IC Technology DESCRIPTION FEATURES The MP2602 is a linear, high-performance Input Surge Up to 28V single cell Li-Ion battery charger. By integrating Adapter or USB Input high voltage input protection into the charger IC, Programmable Charge Current: 85mA to 1A the MP2602 can tolerate an input surge up to Proprietary Constant Voltage Auto Recharge 28V. Proprietary Over-Voltage Protection 0.75% V Accuracy The device features constant current (CC) and BATT <1A Battery Reverse Current constant voltage (CV) charging modes with programmable charge currents (85mA to 1A), 90A Standby Current from V IN programmable battery full threshold, thermal Battery Temperature Monitoring protection, battery temperature monitoring, Over Current Protection reverse current blocking and trickle charge. The AC Adapter Power Good Indicator device also provides AC adapter power good Charge Status Indicator and charge status indications to the system. Programmable Soft-Start Programmable Charge Termination Current MP2602 is available in 10-pin 3mm x 3mm QFN Threshold packages. Tiny 3mm x 3mm QFN Package EVALUATION BOARD REFERENCE APPLICATIONS Board Number Dimensions Cell Phones EV2602DQ-00B 2X x 1.9Y x 0.6Z 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 + I BATT V BATT 1 10 IN BATT 2 9 CHG ISET MP2602 3 8 ACOK IBF 4 7 EN SS ON OFF 5 6 NTC GND MP2602 Rev.1.3 www.MonolithicPower.com 1 1/25/2010 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. 2010 MPS. All Rights Reserved. MP2602 28V, 1A LINEAR LI-ION BATTERY CHARGER WITH TRICKLE CHARGE (1) PACKAGE REFERENCE ABSOLUTE MAXIMUM RATINGS IN to GND ....................................0.3V to +28V TOP VIEW All Other Pins to GND.................0.3V to +6.5V Junction Temperature...............................140C IN 1 10 BATT Lead Temperature ....................................260C CHG 2 9 ISET Storage Temperature ..............65C to +150C ACOK 3 8 IBF (2) Recommended Operating Conditions EN 4 7 SS Nominal Supply Voltage V ............ 3.5V to 5.5V IN NTC 5 6 GND Operating Temperature .............40 C to +85 C (3) EXPOSED PAD Thermal Resistance JA JC ON BACKSIDE 3x3 QFN10 ............................. 50...... 12... C/W Part Number* Package Temperature Notes: 1) Exceeding these ratings may damage the device. QFN10 MP2602DQ 40 C to +85C 2) The device is not guaranteed to function outside of its (3mm x 3mm) operating conditions. 3) Measured on approximately 1 square of 1 oz copper. For Tape & Reel, add suffix Z (eg. MP2602DQZ) * For RoHS compliant packaging, add suffix LF (eg. MP2602DQLFZ) ELECTRICAL CHARACTERISTICS V = 5V, V = 0V, T = +25 C, unless otherwise noted. IN EN A Parameter Symbol Condition Min Typ Max Units 40 EN = High Supply Current I A SUPPLY 500 EN = Low, I = 0A CHG Battery Voltage Regulation V BATT T = 5C to +75C, I = 0 4.158 4.20 4.242 V A BATT Battery Over-Voltage I V = 4.25V 0 A BATT OVP BATT Protection V = 5V, V = 3.8V IN BATT Constant Current Regulation I 450 515 580 mA CHG R = 3.3k CHG V = 5V, V = 3.8V, IN BATT (4) T = 0C to +120C, Constant Current Variation J 87 100 113 %I CHG R = 1.6 k to 8.0 k CHG (4) Trickle Current V = 5V, V = 2.3V 5 10 15 %I IN BATT CHG Trickle Threshold Voltage 2.45 2.6 2.75 V Trickle Voltage Hysteresis 100 mV Battery Full Programming Refer to Operation section for (4) I 10 50 %I BF CHG Range programming I BF (5) IBF Accuracy 75 125 %I BF SS Pin Voltage C = 0.1uF, V = 3.6V 1.19 1.23 1.27 V SS BATT 5.8 6.0 6.2 V Input ACOK Up Range 1.8 2.5 3.2 V Input ACOK Low Range Input Over Voltage Protection OVP V Rising 5.8 6.0 6.2 V IN MP2602 Rev.1.3 www.MonolithicPower.com 2 1/25/2010 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. 2010 MPS. All Rights Reserved.