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LM34936: Can our four switch buck boost controller work in bidirection mode?

Howard Zou
Genius 12365 points
Part Number: LM34936

Hi,

my customer need 14-20V input, 12V output buck circuit designed for battery charge and discharge system.

When discharging the battery, the energy will flow from 12V to 14-20V, can our device support that?

For example, the renesas has bidirectional buck-boost controller.

https://www.renesas.com/br/en/about/press-center/news/2018/news20181003.html

  • 0
    TI__Genius 12365 points

    Hi,

    anybody would reply to the post?

  • 0 in reply to Howard Zou
    TI__Guru* 78320 points

    Hi Howard,

    I remember I answered this a few days ago, but seemingly it did not get through.  I also checked e2e yesterday and your post did not show up as "not answered".   

    Anyway, the answer is no.  It is a unidirectional controller, not suitable for bidirectional solutions.  You may check with the battery charging group (they have BQ products) and they may have something suitable for  your applications. 

    Thanks,

    Youhao Xi, Applications Engineering