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Isolated auxiliary power of 3.3V and 15V from 40V - 75V

Question asked by mabonga on May 28, 2018
Latest reply on May 29, 2018 by Fil

Am designing a solar pv inverter. I need to bias isolated gate driver, two microcontrollers and sigma delta modulators.The gate drivers are to have a bias voltage of 15V and 3.3V. The microcontrollers are to get biased with 3.3V. The sigma delta modulators are to get biased with 15V and 3.3V. With your line of power management ICs, which isolated controllers would be best for my design for an input voltage of 40V to 75V?