Battery Management

Application / Battery Management
BATTERY PROTECTION & CONTROL

MOSFET Solutions for Battery Management

Low-voltage MOSFETs provide controlled charge, discharge and protection paths between the battery pack and the connected system.

Power semiconductor applications in motor drives, solar energy, EV charging and energy storage
BATTERY POWER PATH

How MOSFETs Protect and Control a Battery Pack

The battery controller monitors the pack and drives back-to-back MOSFETs in the main current path. The switches connect normal charge and discharge current, then isolate the pack when unsafe conditions are detected.

01

Battery Cells

Series and parallel cells store the energy used by the connected system.

02

Measurement & Control

The controller monitors pack conditions and decides when current may safely flow.

03

Back-to-Back MOSFETs

MOSFETs connect or isolate the charge and discharge paths in both directions.

04

Protected System Output

The load receives controlled battery power while the pack remains protected.

DEVICE PATHS

MOSFET Options for Battery Protection Paths

Low-Voltage MOSFETs

For charge, discharge and protection switches where low conduction loss and board space matter.

TO-220 MOSFET package

N-Channel MOSFETs

A broad product path for battery disconnect, pre-charge and bidirectional switching functions.

What to Share for Device Matching

Share the pack architecture, charge and discharge requirements, transient conditions, switching arrangement, package preference and board cooling approach. Technical documents are available upon request.