Monolithic Power Systems MP2759

Description

Much of today’s electric equipment – such as industrial medical equipment, robot vacuums, drones, and high power speakers – require multiple batteries for power. Some of these devices require the ability to adjust the charging current in real time to fine-tune the device’s performance under different operation modes. For example, many battery manufacturers require specific charging current levels at different temperatures to guarantee battery safety. Although the MP2759 has JEITA to adjust the charging current,a microcontroller (MCU) can enhance user configuration.This reference design showcases a method to adjust the charging current in real time with a PWM signal from an MCU. This design is based on the MP2759, a highly integrated switching charger designed for applications with 1-cell to 6-cell series Li-ion or Li-polymer battery packs.

Features

• Up to 36V Operation Input Voltage
• Up to 3A Charge Current
• 1-Cell to 6-Cell Series with 3.6V, 4.0V, 4.1V, 4.15V, 4.2V,4.35V, or 4.4V Battery Regulation Voltage for Each Cell
• Input Current Limit Regulation
• Input Minimum Voltage Regulation
• Supports OR Selection Power Path Management
• 0.5% Battery Regulation Voltage Accuracy
• Charge Operation Indicator
• Input Status Indicator
• Battery Over-Voltage Protection (OVP)
• Charging Safety Timer
• Battery Thermal Monitoring and Protection with JEITA Profile

Typical applications

• Wireless Speakers
• Industrial Medical Equipment
• Robots and Portable Vacuum Cleaners

More information

• IC product information