MP2672 4-5.75V Boost Charger QFN-18

MP2672 4-5.75V Boost Charger QFN-18

The MP2672 is a highly integrated, flexible switch-mode battery charger IC for a Lithium-ion battery with two cells in series, which is used in a wide range of portable applications.

Key Specifications

Features

• 4.0V to 5.75V Input Operation Voltage
• Up to 14V Sustainable Voltage
• Up to 2A Programmable Charge Current for Battery with 2 Cells in Series
• Compatible with Host Control and Standalone Mode
• NVDC Power Path Management
• Programmable Input Voltage Limit
• Programmable Charge Voltage with 0.5% Accuracy
• No External Sense Resistor Required
• Integrated Cell Balancing Circuit for Cell Mismatch
• Preconditioning for Fully Depleted Battery

Typical Application Circuit

Applications

• Portable Handheld Solutions
• POS Machines
• Bluetooth Speakers
• E-Cigarettes

Design Notes

• Cell measurement accuracy is specified over temperature — calibrate the sense path if the gauge reports state of charge rather than raw voltage.
• Balance current is limited by the bleed resistor and the pack wiring; check the resulting balance time for the capacity mismatch you expect.
• Protection thresholds should sit inside the cell maker's absolute limits with margin for measurement error.
• Keep the sense lines separate from the power path to avoid IR drop corrupting readings.

Common Questions