Introduction to Digital Power Conversion
XMC4000/1000 Family
Comparison of Power Conversion Methods
Application Guide
12
V1.0, 2015-01
2.3.2.3
ASIC controller versus MCU / DSP / DSC controllers
Here we outline some of the guiding properties to be considered, for the type of controller to choose
when selecting for High-end versus Low-end.
ASIC
ASIC controllers offer gate drivers and fixed optimized solutions at the lowest possible cost. They are
easy to use and they fit Low-end switch mode converters very well.
However, on the downside, they only handle known changes in load and input conditions during run-
time, and reusability is limited because they are a customized solution.
Positive properties:
Custom design for known conditions
Fixed and optimized settings
Lowest possible cost
Easy to use
Embedded gate drivers
Form factor
MCU / DSP / DSC
An MCU, DSP or DSC controller brings a platform approach, a smart system with high computation
capability, and embedded power conversion orientated peripherals.
Condition changes are handled in run-time, ensuring the highest efficiency and correct real-time
performance. These features mean that the MCU, DSP or DSC solution is particularly suited to High-
end power converters.
Positive properties:
Platform approach (Reuse, Extend)
When highest efficiency is required
Mixed power mode capability
Variable load / inputs
Programmable dwith software IP
Flexible communication
