MP2696B 4-11V, 3.5A Single-Cell Switching Charger QFN-21

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MP2696B 4-11V, 3.5A Single-Cell Switching Charger QFN-21

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MPS Battery Management charger QFN-21 Power Management

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MP2696B 4-11V, 3.5A Single-Cell Switching Charger QFN-21

The MPS MP2696B is a Single-Cell Switching Charger. It operates from a 4 V to 11 V input, is rated for 3.5 A and handles 1s battery stacks. It is supplied in a QFN-21 package.

The MP2696B is a highly integrated, flexible, switch-mode, battery-charging, power-path management device designed for a single-cell Li-ion and Li-polymer battery.

Key Specifications

Part Number	MP2696B
Function	Single-Cell Switching Charger
Input Voltage	4 V to 11 V
Current Rating	3.5 A
Battery Cells	1s
Interface	I²C
Package	QFN-21
Ordering Codes	MP2696B

Features

4.0V to 11V Operating Voltage Range
Up to 16V Sustainable Input Voltage
500mA to 3.6A Configurable Charge Current
3.6V to 4.45V Configurable Charge Regulation Voltage with ±0.5% Accuracy
500mA to 3.5A Configurable Input Current Limit with ±10% Accuracy
Minimum Input Voltage Loop for Maximum Adapter Power Tracking
Ultra-Low 25μA Battery Discharge Current in Idle Mode
Analog Voltage Output IB Pin for Battery Current Monitoring
SYS Plug-In Detection
SYS No Load Detection

Typical Application Circuit

Applications

Sub-Battery Applications

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.