MP2672

MP2672

2A Boost Charger with NVDC Power Path Management and Cell Balancing for 2-Cell Li-Ion Batteries in Series

Datasheet

Description

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

If an input power supply is present, the MP2672 operates in boost mode to charge the battery with two cells in series. If charging is enabled, the MP2672 automatically detects the battery voltage and charges the battery in three phases: pre-charge, constant-current charge, and constant-voltage charge. Other features include charge termination and auto-recharge.

The device has a narrow voltage DC (NVDC) power structure. With a deeply discharged battery, the MP2672 regulates the system output to a minimum voltage level. This powers the system instantly while simultaneously charging the battery via the battery FET. The MP2672 also provides a cell balance function. This monitors the voltage across each cell, then equalizes the cell’s voltages if the difference between the two cells exceeds the mismatch threshold.

The MP2672 has two configuration modes: standalone mode and host control mode. In standalone mode, the charging parameters can be configured via the hardware pins. In host control mode, the charging parameters can be configured via the I²C registers.

Diverse and robust protections include a thermal regulation loop for decreasing the charge current in case the junction temperature exceeds the thermal loop threshold, and JEITA-compliant battery temperature protection. Other safety features include input over-voltage protection (OVP), battery OVP, thermal shutdown, battery temperature monitoring, a watchdog timer, and a configurable backup timer to prevent prolonged charging of a dead battery.

The MP2672 is available in a QFN-18 (2mmx3mm) package.

Features & Benefits

4V to 5.75V Input Voltage (V_IN) Range
Up to 14V Sustainable Voltage
Up to 2A Configurable Charge Current for Battery with 2 Cells in Series
Compatible with Host Control Mode and Standalone Mode
Narrow-Voltage DC (NVDC) Power Path Management
Configurable V_IN Limit
Configurable Charge Voltage with 0.5% Accuracy
No External Sense Resistor Required
Integrated Cell Balancing Circuit for Cell Mismatch
Preconditioning for Fully Depleted Battery
Flexible New Charging Cycle Initiation
Charge Operation Indicator in Standalone Mode
Missing Battery Detection
I²C Interface for Flexible System Parameter Setting
Status Reporting in Host Control Mode via the I²C
Negative Temperature Coefficient Pin for Temperature Monitoring Compliant with JEITA Standards
Built-In Charging Protection
Built-In Configurable Safety Timer
MOSFET Cycle-by-Cycle Over-Current Protection (OCP)
Thermal Regulation
Thermal Shutdown
Available in a QFN-18 (2mmx3mm) Package

Active Part Numbers:

MP2672GD–xxxx-P MP2672GD–xxxx-Z MP2672GD-0000-P MP2672GD-0000-Z

Meaning of P & Z

Related Products

EVKT-MP2672 The EVKT-MP2672 is an evaluation kit for the MP2672, which can be controlled by the GUI to charge and discharge 2-cell batteries.

The EVKT-MP2672 is an evaluation kit for the MP2672, which can be controlled by the GUI to charge and discharge 2-cell batteries. Its layout accommodates most commonly used components. The default function of this board is preset for host-control mode, and the battery regulation voltage is preset to 8.4V for the 2-cell Li-Ion batteries.

$100.00
+ tax

EV2672-D-01A

2-cell Boost Charger EV Board with 2A Charge Current and NVDC

MP2672 I2C Evaluation GUI

The MP2672 is highly customizable. Users can configure the MP2672 via the downloadable I²C GUI.

EVKT-USBI2C-02

Communication Interface Device USB to I²C/PMBus, included with product evaluation kit or can be purchased separately.