Automotive battery packs use daisy chain connections, for the extremely high number of cells used in each pack. Potential voltages differences require high component isolation strength. The serial communication from board-to-board requires an isolation transformer.
E&E Magnetics provide all the magnetics needed for Isolation, Communication and filtering including BMS transformers covered here.
BMS Transformer Modules
- Provide hi-pot isolation up to 4300V
- Provide EMI suppression
- Support serial daisy chain isoSPI, SPI
- Operating temp.: -40°C to +125°C/+150 °C
- Compact size with 7.62 x 9.27 x 5.72mm
- AEC-Q200 for automotive applications
Model Information
| Part No | Working Voltage | HI-POT Isolation | Creepage Distance | CMC | Operating Temp | Works with |
| A21V00037F | 1000Vdc | 4300Vdc | >5mm | YES | -40°C to 125°C | LTC6820, LTC6804, LTC6811, MC33664, MC33771, MC33772 |
| A21V00038F | 1000Vdc | 4300Vdc | >5mm | YES | -40°C to 125°C | LTC6820, LTC6804, LTC6811, MC33664, MC33771, MC33772 |
| A21V00039F | 1000Vdc | 4300Vdc | >5mm | YES | -40°C to 150°C | BQ79606 |
| A21V00040F | 1000Vdc | 4300Vdc | >5mm | YES | -40°C to 125°C | LTC6820, LTC6804, LTC6811,LTC6813 MC33664, MC33771, MC33772, MC33773 |
Note: Other options are available, and custom parts can be developed upon request.
Contact our power specialists to find out more about EEMPL transformers and other products for Automotive EV applications.
