MP2695 4-11V Single-Cell Switching Charger QFN-21

MP2695 4-11V Single-Cell Switching Charger QFN-21

The MP2695 is a highly integrated, flexible, switch-mode battery charging management device designed for a single-cell Li-ion and Li- polymer battery used in a wide range of portable applications.

Key Specifications

Features

• 4.0V to 11V Operation Voltage Range
• Up to 16V Sustainable Input Voltage
• 500mA to 3.6A Programmable Charge Current
• 3.6V to 4.45V Programmable Charge Regulation Voltage with ±0.5% Accuracy
• 100mA to 3A Programmable Input Current Limit with ±10% Accuracy
• Minimum Input Voltage Loop for Maximum Adapter Power Tracking
• Ultra-Low 25μA Battery Discharge Current in Idle Mode
• Comprehensive Safety Features: o Fully-Customizable JEITA Profile with Programmable Temperature Threshold o Charge Safety Timer o Input Over-Voltage Protection o Thermal Shutdown
• Analog Voltage Output IB Pin for Battery Current Monitor
• Status and Fault Monitoring

Typical Application Circuit

Applications

• Bluetooth Speakers

Design Notes

• Charge current accuracy depends on the sense resistor tolerance, so use a 1% or better part and keep its traces Kelvin-connected.
• Wire the NTC input for JEITA profile control if the pack is charged over temperature.
• Set the input current limit to what the adapter can actually deliver; a limit above the adapter rating causes the input rail to collapse mid-charge.
• Termination current and recharge threshold dominate cycle life in shallow-cycling products.

Common Questions