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UCC14240-Q1: boostrap

Brian Wang0928
Genius 14090 points
Part Number: UCC14240-Q1

Tool/software:

Team,

is one UCC14240 able to offer 3 bias powers with boostrap circuitry to drive upper IGBTs? If so, could you offer ref. design! Very thanks. 

application: AC inverter

Regards

Brian

  • 0
    TI__Mastermind 32975 points

    When considering power level, regulation accuracy, inrush current and HV safety isolation, the proposed configuration is not recommended with UCC14240. Depending on required power level and max ambient temperature, it may be ok to use a single UCC1420 for biasing three low-side referenced gate drivers (GD2, GD4, GD6).

    Steve