MP2645

MP2645

5-Cell Battery Active Balancer with Stackable Interface

Description

The MP2645 is a 5-cell, highly integrated, bidirectional buck-boost active balancer with a novel topology (MPS patented).

A single MP2645 can redistribute charge between 5 series cells, including Li-ion, Li-polymer, LiFePO4 batteries or supercapacitors. It can be configured for up to 3.75A of charge redistribution.

As an alternative to dissipating energy with passive balancing, the MP2645 efficiently moves charge between cells with much faster balancing and minimal heat generation. It can also compensate for cell capacity mismatch to extend battery runtime.

The device is easily controlled via a robust one-wire interface that supports up to 8 cascaded devices to balance packs of up to 33 series cells.
The MP2645 is available in a QFN-19 (4mmx4mm) package.

Features & Benefits

40V Max Stack Voltage
Up to 3.75A Balance Current
One-Wire Interface
Stackable Operation and Communication
Directly Powered from Battery Cells
Includes Watchdog
Pack Over-Voltage Protection (OVP)
Thermal Shutdown Protection

Active Part Numbers:

MP2645GRE-xxxx-Z MP2645GRE-xxxx-P MP2645GRE-0000-Z MP2645GRE-0000-P

Meaning of P & Z

Related Products

Optimized Performance with MPS Inductor

MP2643GR 2-Cell, 2A, Bidirectional Active Balancer, Third Generation

MPL

Optimized Performance with MPS Inductor

The MP2643 is a highly integrated, bidirectional active balancer that provides up to 2A of charge redistribution among Li-ion, Li-polymer, or lithium iron phosphate batteries in a two-series battery pack. As an alternative to dissipating energy with passive balancing, the MP2643 efficiently moves charge between cells to minimize balancing time and heat generation. The device can also compensate for cell capacity mismatch to extend battery runtime.

By combining multiple MP2643 devices, active balancing can be scaled to any number of series cells, and charge can be redistributed to and from any cells within the pack.

The MP2643 can balance adjacent cells using two modes: buck-balance mode and boost-balance mode. In buck-balance mode, the MP2643 transfers energy from the upper cell (CU) to the lower cell (CL). In boost-balance mode, the MP2643 transfers energy from CL to CU.

To guarantee safe operation, the MP2643 provides CL and CU over-voltage protection (OVP), under-voltage protection (UVP), and thermal shutdown.

The MP2643 is available in a QFN-26 (4mmx4mm) package.

MP2642GR

2-Cell, 1A, Bidirectional Active Balancer, Third Generation