Wired Communications

Experts foresee a dramatic increase in demand for electric vehicles in the next several years.

Sales of electric vehicles are expected to surpass traditional internal combustion vehicles by the year 2038 or sooner. Some research suggests as early as 2028.

And, by 2025, electric vehicles will be cheaper than internal combustion vehicles.

That means designers and engineers need battery management systems designed for efficient battery capacity and increased battery lifetime.

This movement toward EVs, PHEVs, and HEVs, has directed the team at Pulse Electronics Networking BU to develop enhanced battery management system components.

The result? Take a look for yourself.


How BMS Components Work

Large battery packs typically use a “daisy chain” structure, with many cells linked in sequence. These cells can differ dramatically in their voltage from one to the next.

These components need to be strictly isolated from each other to ensure safe operation.

In many modern BMS systems, serial communication links between circuit boards are isolated with transformer coupling circuits, rather than capacitor couplings.

Because of the high number of transformer coupling circuits used in most BMS applications, and the importance of their performance to the life of the battery and the BMS, these components need to be reliable.

BMS Features and Benefits

The Pulse Electronics Networking BU team has designed several BMS transformers to use for EVs, PHEVS, and HEVs.

In addition to their durability, these components have several essential characteristics that distinguish them from competitors and predecessors:

  • Multiple options for working voltages and voltage isolation. Not all transformers are suited for all applications. Pulse offers a range of transformers for BMS, including HM2100NL, HM2101NL, HM2102NL, HM2103NL, HM2106NL, HM2112ZNL, and HM2113ZNL.
  • Meets AEC-Q200 requirements for automotive applications. The Automotive Electronics Council has put several industry standards in place to assure the reliability of electronic components used in vehicles. Our products meet AEC-Q200 standards. Our components are designed for durability, as well as their ability to resist thermal shocks and high temperature and humidity.
  • Operating temperatures from -40 C to 125 C. The temperature of a circuit can vary considerably. Pulse Electronics’ BMS transformers operate efficiently in a wide range of temperatures, to assure the battery’s reliability and safety in a variety of conditions.

To learn more about our battery management components, watch this video below:





No. of Channel

Working Voltage

HI-POT Isolation

Creepage Distance

Center Tap

Common Choke

Operation Temp

Supported IC

HM1188NL 2 100Vdc 1500Vms Yes Yes


Linear Tech 6820/6804/6811

HM1190NL 1 600Vdc 2500Vms Yes Yes -40~125°C Linear Tech
HM1331NL 2 1000Vdc 4000Vms Yes Yes


Linear Tech
HM2100NL 2 1000Vdc 4300Vdc >10mm No Yes -40~125°C

Linear Tech 6820/6804/6811

HM2101NL 1 1000Vdc 4300Vdc >5mm No Yes -40~125°C

Linear Tech 6820/6804/6811

HM2102NL 2 1000Vdc 4300Vdc >8mm Yes Yes -40~125°C

Linear Tech 6820/6804/6811

NXP MC33664/33771

HM2103NL 1 1000Vdc <4300Vdc >5mm Yes Yes -40~125°C

Linear Tech 6820/6804/6811

NXP MC33664/33771

HM2106NL 1 1000Vdc 4300Vdc >11mm Yes No -40~125°C

Linear Tech 6820/6804/6811

NXP MC33664/33771

HM2108NL 1 1000Vdc 4300Vdc >11mm Yes Yes -40~125°C

Linear Tech 6820/6804/6811

NXP MC33664/33771

HM1236NL 1 600Vdc 3200Vdc >7mm Yes   -40~125°C<


HM1237NL 2 600Vdc 2500Vac Yes Yes -40~125°C


HM1238NL 1 1000Vdc 4300Vdc Yes Yes



Battery Management System Schematics

Manufacturers are anticipating a high demand for electric vehicles on the horizon, and many stakeholders are taking a keen interest in solar energy.

The quality of the transformers and other components within BMS has a direct impact on the quality of the BMS itself. Components must meet strict industry standards, and be able to operate in a wide range of temperatures.

Pulse Electronics has designed several transformers that meet these criteria and offer engineers several options for working voltage and voltage isolation. With cost-effective, reliable, durable transformers like these, BMS technology is ready for the electric vehicle and energy storage systems.

We pride ourselves on being at the forefront of BMS to improve the safety, efficiency, and longevity of EVs, PHEVs, and HEVs.

For more information on the Pulse Electronics Networking BU components, download the datasheet or purchase the parts directly by clicking below.

Download Datasheet