MP2617A, MP2617B 3A Switching Charger with NVDC Power Path Management For Single Cell Li+ Battery The Future of Analog IC Technology DESCRIPTION FEATURES The MP2617A / MP2617B is a monolithic 4V to 10V Operating Input Voltage switch mode battery charger with power path Smart Power Path Management management for single-cell Li-ion batteries in a Five Control Loops: Input Current Limit, wide range of tablet and other portable devices. Input Voltage Limit, Constant Charge It integrates a synchronous BUCK regulator to Current, Terminal Battery Control and provide regulated voltage for powering the Thermal Fold-Back. system output and at the same time charging 1.6MHz Switching Frequency the battery. This device supports both USB and Programmable Input Current Limit high power DC adapter input. In USB mode, the Programmable Charge Current input current limit can be programmed to Single Input for USB and AC adapter 450mA or 825mA via the logic pins to cover the Cover USB2.0 and USB3.0 Input USB2.0 and USB3.0 specifications. When the Specification adapter input is present, the input current can Fully Integrated Power Switches also be limited in order to avoid overloading of No External Blocking Diode and Sense the DC adapter. Input current limit can be Resistor Required programmed up to 3A. Charging Operation Indicator The smart power path management allows Built-in Programmable Charging Timer MP2617A and MP2617B to regulate the system Thermal Limiting Regulation on Chip voltage for powering an external load and Battery Temperature Monitor charging the battery independently and Tiny Package Features Small Size. simultaneously. This allows immediate system operation even under missing or deeply APPLICATIONS discharged battery. When the input current limit Smart Phone is reached, the system load is satisfied in E-Book priority, then the charger will take the remaining GPS current to charge the battery. Additionally, the Portable Media Player smart power path control allows an internal Portable Hand-held Solution connection from battery to the system in order Tablet PC to supplement additional power to the load in the event the system power demand increases All MPS parts are lead-free, halogen free, and adhere to the RoHS directive. For MPS green status, please visit MPS website under Quality over the input limited power or the input is Assurance. removed. MPS and The Future of Analog IC Technology are Registered Trademarks of Monolithic Power Systems, Inc. The MP2617A / MP2617B features high integration with all the power switches integrate inside. No external MOSFET, blocking diodes, or current sense resistor is required. Two status monitor output pins are provided to indicate the battery charge status and power source status. Other features include trickle charge, battery temperature monitoring, timer and thermal limiting regulation on chip. The MP2617A / MP2617B is available in QFN 3mmx4mm package. MP2617A, MP2617B Rev. 1.24 www.MonolithicPower.com 1 4/26/2019 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2019 MPS. All Rights Reserved. MP2617A, MP2617B SINGLE CELL SWITCHING CHARGER WITH POWER PATH TYPICAL APPLICATION ON OFF AC adapter VILIM M0 M1 EN L SYS Load /USB input SW IN R3 C1 C3 C CHGOK SYS BST R4 ACOK SYS R1 VCC SYSFB C R T1 IN PGND C2 NTC R2 I CHG BATT vBATT TMR R T2 C BATT C ISET TMR MP2617A/B R ISET AGND ILIM R NTC R ILIM 0 MP2617A MP2617B 100 80 60 40 20 0 0 0.5 1 1.5 2 2.5 3 3.5 MP2617 Family Table Features MP2617A MP2617B Battery Charge Full Voltage 4.35V 4.2V MP2617A, MP2617B Rev. 1.24 www.MonolithicPower.com 2 4/26/2019 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2019 MPS. All Rights Reserved.