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Original question:

[FAQ] UCC27624: Can I use a Low Side driver as a High Side driver?

LMG1020: How to use it for high side and low side operation

Hridya TV
Prodigy 185 points
Part Number: LMG1020
Other Parts Discussed in Thread: LMG1210

Tool/software:

https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1082920/faq-ucc27624-can-i-use-a-low-side-driver-as-a-high-side-driver

As mentioned in the above forum, how can i use the second methodology mentioned?

  • 0
    TI__Genius 9790 points

    Hello,

    LMG1020 can be used as a high side driver using an isolated floating supply as shown in the diagram. The driver ground pin, IN- pin, and floating supply negative is connected to the switch node/high side FET source. The floating supply positive is connected to VDD. A level shifter may be needed in the IN+ input to translate the ground referenced signal to the floating supply referenced input.

    If you need to drive a GaN half bridge configuration, our LMG1210 device includes a low side driver and high side driver with level shifter.

    Thank you,

    Walter