MP2731 Wide Input Range, 4.5A, 2 I C-Controlled SW Charger with NVDC Power Path and USB OTG DESCRIPTION FEATURES The MP2731 is a 4.5A, highly integrated switch- 3.7V to 16V Operating Input Voltage Range mode battery charge management device for Up to 22V Sustainable Voltage single-cell Li-ion or Li-polymer batteries. This High-Efficiency, 4.5A, 1.35MHz Buck device works with NVDC system power path Charger: Up to 92% Charge Efficiency management, and is suitable for a variety of with 3A Charge Current: applications, including smartphones, tablets, o Configurable DP/DM for Flexible Fast wireless cameras, and other portable devices. Its Charge Protocol Support low-impedance power path optimizes efficiency, USB OTG with 4.8V to 5.5V Adjustable reduces battery charging time, and extends Output: Up to 3.0A Output, Up to 93% 2 battery life. The I C serial interface allows the Efficiency with 1.5A Output device to be flexibly controlled due to its charging NVDC Power Path Management: and system settings. o Instant-On Works with No Battery or Deeply Discharged Battery The MP2731 supports a wide range of input o Ideal Diode Operation in Battery sources, including standard USB host ports and Supplement Mode high-powered wall adapters with fast charge High Battery Discharge Efficiency with capabilities. The MP2731 provides USB input 14m BATFET Up to 8.5A type detection via the DP/DM pins. 2 I C Port for Flexible System Parameter The device supports USB On-The-Go (OTG) Setting and Status Reporting operation by supplying default 5V on the input Fully Integrated Power MOSFETs and bus with an output current limit up to 3.0A. Current Sensing The MP2731 initiates and completes a charging Dedicated DISC Pin to Control Shipping cycle without software control. It automatically Mode and System Reset detects the battery voltage and charges the 13A Low Battery Leakage Current in battery in different stages. The charger Shipping Mode automatically terminates when a full charge is Integrated ADC for Monitoring Input detected. When the charged battery drops below Voltage, Input Current, Battery Voltage, the recharge threshold, the charger Charge Current, System Voltage, and automatically starts another charging cycle. Battery Temperature Charging Status Indicator The charger provides various safety features for Safety Features Including Configurable battery charging and system operations, JEITA for Battery Temperature Protection including a charging safety timer, battery for Charge Mode, Battery Charging Safety temperature monitoring, over-voltage and over- Timer, Thermal Regulation and Thermal current protections. When any fault occurs, the 2 Shutdown, Watchdog Monitoring I C charger asserts an INT signal to host. The device Operation, and Input/System Over-Voltage provides BATFET disable control to enter Protection shipping mode, as well as system reset functionality via the DISC pin. APPLICATIONS The MP2731 is available in a QFN-26 Tablet PCs (3.5mmx3.5mm) package. Smartphones Wireless Cameras Other Portable Devices All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive. For MPS green status, please visit the MPS website under Quality Assurance. MPS, the MPS logo, and Simple, Easy Solutions are trademarks of Monolithic Power Systems, Inc. or its subsidiaries. MP2731 Rev. 1.2 MonolithicPower.com 1 9/22/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2021 MPS. All Rights Reserved. 2 MP2731 4.5A SW CHARGER WITH I C CONTROL, NVDC POWER PATH, USB OTG TYPICAL APPLICATION PMID C2 VREF 10F IN C3 C1 10F 1F USB/ BST PGND Adapter System C4 Port 47nF Output DP SW L1 DM 1.0H C5 22F SYS MP2731 BATT C6 Li-Ion VNTC 22F OTG Battery Pack CE Host NTC INT SCL STAT VREF SDA ILIM AGND DISC MP2731 Rev. 1.2 MonolithicPower.com 2 9/22/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2021 MPS. All Rights Reserved.