MP2639B 1S Cell Li-ion or Li-polymer Switching Charger Compatible with Wide Input Range and Integrated Programmable OTG FEATURES DESCRIPTION 4.5V to 16V Input Voltage Range The MP2639B is a highly integrated, flexible Integrated Both Input-Current-Based and switch-mode battery charging management Input-Voltage-Based Power Management device for a single-cell Li-ion and Li-Polymer Functions battery used in a wide range of portable Up to 5A Programmable Charge Current applications. 4.35V Charge Voltage with 0.5% Accuracy The MP2639B works in three modes: charge Up to 3A Programmable Boost Output mode, discharge mode, and sleep mode. (See Current Table 1) Up to 16V Programmable Boost Output When the input power supply is available, the Voltage MP2639B operates as a switching charger to Negative Temperature Coefficient Pin for charge a 1S battery from a wide input power Temperature Monitoring range of 5V to 16V, which can cover a USB PD Programmable Timer Back-Up Protection voltage level. The MP2639B automatically Discharge Mode Load Trace Compensation detects the battery voltage and charges the Thermal Regulation and Thermal Shutdown battery in three phases: pre-charge, constant Internal Battery Reverse Leakage Blocking charge, and constant voltage charge. Other Integrated Short-Circuit Protection for Boost features include charge termination and auto- Mode recharge. 4 LEDs Battery Level and Status Indication When the input is absent, the MP2639B can 4mmx4mm QFN-26 Package provide a wide boost voltage to IN by adjusting APPLICATIONS the feedback voltage at FB. When working with the PD controller, the MP2639B can support a Power Station Applications USB PD standard output voltage level. USB PD Power Banks Mobile Internet Devices To guarantee safe operation, the MP2639B All MPS parts are lead-free, halogen free, and adhere to the RoHS limits the die temperature to a preset value of directive. For MPS green status, please visit MPS website under Quality 120C. Other safety features include input over- Assurance. MPS and The Future of Analog IC Technology are Registered voltage protection, battery over-voltage Trademarks of Monolithic Power Systems, Inc. protection, thermal shutdown, battery ADAM (Analog Digital Adaptive Modulation), AAM (.) are Trademarks of Monolithic Power Systems, Inc. temperature monitoring, and a programmable timer to prevent prolonged charging of a dead battery. MP2639B Rev. 1.01 www.MonolithicPower.com 1 11/14/2019 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2019 MPS. All Rights Reserved. MP2639B SWITCH MODE BATTERY CHARGER W/ BIDIRECTIONAL OPERATION TYPICAL APPLICATION Table 1: Operation Mode Table MODE Active Operation Mode Topology Pin SW (1) High Discharge Mode Q2 Step-up Low Charge Mode Q1 Step-down -------- Note: (1) MODE=high and pushing PB to start the discharge. MP2639B Rev. 1.01 www.MonolithicPower.com 2 11/14/2019 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2019 MPS. All Rights Reserved.