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The
ModuS U6 process has been extended to allow a swift design and
economic production of ASICs for applications at supply voltages up
to 100V.
This allows to operate the electronics in domestic appliances at a
higher voltage, provides a large safety margin against supply
voltage fluctuations in unregulated supply networks and allows to
drive actors requiring a higher voltage directly from the IC.
For the ASIC design of applications at higher voltage on the supply
line as well as on input or output signals, a variety of circuit
blocks is available; e.g. linear regulators, output drivers and
various comparators and operational amplifiers. Because high voltage
transistors can be integrated, components that needed to be mounted
as discretes on the PCB with conventional ASICs can now be saved.
PDF
Both NPN and PNP transistors are available with a
collector-to-emitter breakdown voltage, base open, of more than
135V, thus permitting to avoid awkward and error-prone concepts like
cascodes or stacked switches.
Since high-voltage components can be combined seamlessly with
low-voltage components, a high integration density can be
achieved.The heat to be dissipated can be kept low, as besides the
high voltage cells also components with ultra low power consumption
are available, such as gates.
For example, an H-bridge which is part of the ASIC can drive a piezo
actor with voltages up to ±50V. The operational amplifier can
sense signals up to close to the supply voltage.
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