EV2672A-D-00B 2-Cell Boost Charger with 2A Charge Current Evaluation Board DESCRIPTION FEATURES The EV2672A-D-00B evaluation board is 4.0V to 5.75V Input Voltage Range designed to demonstrate the capabilities of the Compatible with Host-Control and MP2672A. The MP2672A is a highly integrated, Standalone Mode flexible, switch-mode battery charging Configurable Input Voltage Limit management device for 2-cell series Li-ion and Up to 2A Configurable Charge Current for 2- Li-polymer battery packs. The MP2672A can be Cell Battery used in a wide range of portable applications. Configurable Charge Voltage with 0.5% Accuracy When a 5V adapter or USB input is present, the No External Sense Resistor Required MP2672A charges the 2-cell battery in step-up Integrated Cell-Balancing Circuit and mode. Preconditioning for Fully Depleted Battery To effectively charge each application, the Flexible New Charging Cycle Initiation MP2672A automatically detects the battery Charging Operation Indicator voltage, and charges the battery in three 2 I C Port for Flexible System Parameter phases: pre-charge, constant current (CC) Setting and Status Reporting charge, and constant voltage (CV) charge. Negative Temperature Coefficient (NTC) Other charging features include charge Pin for Temperature Monitoring termination and auto-recharge. Built-In Charging Protection and To guarantee safe operation, the MP2672A Configurable Safety Timer limits the die temperature to a preset value Thermal Regulation and Thermal Shutdown (about 120C). Other safety features include input over-voltage protection (OVP), battery APPLICATIONS OVP, thermal shutdown, battery temperature Portable Handheld Solutions monitoring, and a configurable timer to prevent Point-of-Sale (POS) Machines prolonged charging of a dead battery. Bluetooth Speakers The MP2672A is available in a QFN-18 E-Cigarettes (2mmx3mm) package. General 2-Cell Applications ELECTRICAL SPECIFICATIONS All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive. For MPS green status, please visit the MPS website under Parameter Symbol Value Units Quality Assurance. MPS, the MPS logo, and Simple, Easy Solutions are trademarks of Monolithic Power Systems, Inc. or its subsidiaries. Input voltage V 4.5 to 6.0 V IN Pre-charge 6.4, VBATT PRE V 2 threshold I C-configurable Battery charge 8.4, voltage VBATT REG V 2 I C-configurable regulation Fast charge 2, I A CC 2 current I C-configurable EV2672A-D-00B Rev. 1.0 MonolithicPower.com 1 12/2/2020 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2020 MPS. All Rights Reserved. EV2672A-D-00B 2-CELL IN SERIES, 2A BOOST CHARGER EVAL BOARD EV2672A-D-00B EVALUATION BOARD Charge Efficiency Tests On the EVB Constant Current Charge Efficiency VIN = 5V (5A), VBATT ramping from 6.4V to 8.4V in a constant current loop 1 0.95 0.9 0.85 ICC=2A ICC=1A 0.8 6.4 6.9 7.4 7.9 8.4 V (V) BATT Top Layer Constant Voltage Charge Efficiency VIN = 5V (5A), VBATT = 8.4V, charge current decreases until charging is done in a constant voltage loop 1 0.95 0.9 0.85 ICC=1A ICC=2A 0.8 00.5 11.5 2 I (A) BATT Bottom Layer (LxWxH) 6.35cmx6.35cmx0.16 cm Board Number MPS IC Number EV2672A-D-00B MP2672AGD EV2672A-D-00B Rev. 1.0 MonolithicPower.com 2 12/2/2020 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2020 MPS. All Rights Reserved. EFFICIENCY EFFICIENCY