A Robust Design Against Failure Propagation of an All-in Multi-chip Hybrid DC-DC Converters Controller

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A Robust Design Against Failure Propagation of an All-in Multi-chip Hybrid DC-DC Converters Controller

Bigongiari, Franco / Bacci, Maurizio / Casali, Elena / Fontani, Lorenzo / Inversi, Maurizio / Migliaro, Mario / Levacq, David / Triggianese, Mariel / Polo, Cesar Boatella

Abstract

A new approach to design low/medium Power Supply Unit (PSU) has been developed. It is based on the design of a custom ASIC that integrates all the control and protection functions, leaving outside transformers and power MOSFET. The ASIC has been designed in a 150nm High Voltage CMOS Rad Hard technology and it is composed of three different dice placed inside the same cavity package. A CQFP64 package has been used to assembly the ASIC. Selection of suitable materials and the design approach used have allowed to obtain a component robust against temperature and electrical failure propagation. The ASIC has been tested in the temperature range from −40°C to +125 °C and the behavior under single event and total ionization has been evaluated as well. A validation campaign based on the design of a PSU exploiting the ASIC functionality has been performed.

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Document information

Title :

A Robust Design Against Failure Propagation of an All-in Multi-chip Hybrid DC-DC Converters Controller

Contributors:

Bigongiari, Franco (author) / Bacci, Maurizio (author) / Casali, Elena (author) / Fontani, Lorenzo (author) / Inversi, Maurizio (author) / Migliaro, Mario (author) / Levacq, David (author) / Triggianese, Mariel (author) / Polo, Cesar Boatella (author)

Published in:

2019 European Space Power Conference (ESPC) ; 1-6

Publication date :

2019-09-01

Size :

1907428 byte

ISBN :

978-1-7281-3328-7 , 978-1-7281-2126-0

DOI :

https://doi.org/10.1109/ESPC.2019.8932022

Type of media :

Conference paper