双极性晶体管

二极管

ESD保护、TVS、滤波和信号调节ESD保护

MOSFET

氮化镓场效应晶体管(GaN FET)

绝缘栅双极晶体管(IGBTs)

模拟和逻辑IC

汽车应用认证产品(AEC-Q100/Q101)

48 V Battery Management System (BMS)

48 V batteries tend to be created using Li-ion multi-cell battery packs using 8-16 cells. From a safety perspective, but also to ensure the best efficiency and longest battery life these battery packs need to be carefully monitored and controlled. This requires accurate voltage, temperature and current as well as battery state of charge (SoC) and state of health (SoH) monitoring. In addition for most efficient battery use, good cell balancing and battery optimization is a must.

car-blueprint-multiple-highlights
  • 框图
  • Design considerations
  • Product listing
  • Videos
  • 支持

框图

V ccA V ccB B uc k c o n v e r t e r D C / D C f o r M C U c o r e s u pp l y charge balancing M O SFE T s cell 1 cell 2 24/36/48 V multi-cell bat t e r y cell n BMS IC aaa-035590 C A N- F D b u s S en s o r s ( d i gi t a l ) P T C h e a t e r 5 V L D O 3 . 3 V < 1 . 8 V A i r / W a t e r c o olin g Sensors(analog) Highlighted components are Nexperia focus products.

Charge balancing MOSFETs

推荐产品 (1)

Zener diodes

推荐产品 (1)

TVS diodes

推荐产品 (1)

e-fuse / regulation

推荐产品 (1)

Autosense translators

推荐产品 (1)

Analog switch

推荐产品 (1)

ESD protection

推荐产品 (1)

Buck converter

Related sub-systems (1)

MCU core supply

Related sub-systems (1)

选择元件

想要查看本应用中，所使用的 Nexperia 元件的更多信息，请选择上面的元件或单击框图中的元件（蓝色突出显示的部分）。

Design considerations

  • Depending on the current being drawn some systems can use internal cell balancing topologies, but where there is a higher current then external MOSFETs are recommended.
  • Engineers also have a choice between passive and active cell balancing, although active cell balancing is often more complex give, its need for charge storage elements
  • Zener diodes utilized in the cell balancing stage protect the FETs and battery cell

Product listing

Charge balancing MOSFETs

Zener diodes

TVS diodes

e-fuse / regulation

Autosense translators

Analog switch

ESD protection

Buck converter

MCU core supply

LFPAK88: The automotive Power MOSFET driving power density to the next level

Providing a true alternative to D²PAK, Nexperia’s LFPAK88 delivers industry leading power density in truly innovative 8mm x 8mm footprint.

支持

Design handbooks

Boards

Documentation and videos