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bipolar process for large current application?

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zarric

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hello,everyone.

the sanyo bipolar process CR23 is especilly amied for large current circuit. but spice model (Gummel-Poon model) only provide npn model with emitter area(10.5um*10.5um).
i used it to design a class ab audio amplifier with peak output current about 3A.

how can i use it to design power stage ? parallel many many that npn or merged with large emitter area??
 

Ask a process guy who is responsible for the models and/or (layout) devices. I think your large emitter area will be considered unknown modeling territory.

And try to get ALL your current densities (metal, transistors, vias and contacts) down to acceptable levels.
 

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