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LM5022-Q1: External power supply to have a larger MOSFET drive voltage

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Part Number:LM5022-Q1

Hello,

I designed a BOOST converter with the following specifications:

Vin 30/40 V

Vout 325 V

Iout 600mA

f 200 kHz

I am using LM5022-Q1 as IC.  I need to undestand how to use an external power supply in order to use a large MOSFET drive voltage. Since, the internal one (Vcc pin) reaches 7V and I d like to use a drive voltage of 10 V or 15 V.  May someone can help me to desing it?

Thank you,

GERARDO SAGGESE


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