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TPS2372-4EVM-006: alternative schematics for FDMQ8205A

Part Number: TPS2372-4EVM-006
Other Parts Discussed in Thread: CSD19538Q2, TPS2372-3EVM-757

Hi TI Team,

I am planning to use TPS2372-4EVM-006 evolution board as reference for my design. Nowadays, it is hard to find FDMQ8205A or alternative part.

I have to do schematics with discrete components. can you give me any alternative schematics for bellow picture. I am not going to use power adapter as a secondary power supply, so I think I don' need to use BR_OFF pin, isn't it?

Thank you All ti team,


  • Hi Ömer,

    1) One alternate solution we suggest is to use a Class 8 half-FET bridge. I have included an image of this bridge below. The FET shown is CSD19538Q2 and the diode shown in the VS-30BQ100TRPBF, which may be difficult to find, however as long as the diode is rated for 100 V and 3 A, it should be a suitable replacement. Due to the uses of diodes, this solution will be less efficient than the quad FET bridge, however it can be built using discrete components.

    2) Yes, since you are not using a power adapter, there should be no need for the BR_OFF pin.

    Best regards,

    Nahiyan Muzaffar

  • Hi Nahiyan,

    I saw similar design on TPS2372-3EVM-757.This is 60W version. But I wasn't sure. 

    Thank you very much,