Microchip expands family of live-updateable controllers for digital power

Microchip announces the new dsPIC33EP128GS808 family of high-performance, live-updateable dsPIC Digital Signal Controllers (DSCs). The new devices offer up to 128 KB of dual-partition Flash memory with live-update capability, advanced analogue features and enhanced Core Independent Peripherals (CIPs) suitable for high-end digital power applications such as AC/DC power supplies, DC-DC converters, power inverters and advanced lighting applications.


These devices offer high-resolution pulse width modulators optimised for digital power applications. In addition, the devices include advanced analogue features and peripherals. There are five separate high-speed 12-bit Analogue-to-Digital Converter (ADC) modules, each with 300 ns conversion latency. Up to 22 input channels are shared across these five ADC units. There are also four analogue comparators, each with their own dedicated 12-bit reference Digital-to-Analogue Converter (DAC); and two programmable gain amplifiers to reduce external component count.


New features include a peripheral trigger generator which is a user-programmable state machine that can respond to events faster than a firmware-driven implementation while off-loading the processor for other tasks. In addition, a four-channel Direct Memory Access (DMA) unit is included to further increase the controller’s overall system performance. These devices also have configurable logic cells that can be used to create combinatorial Pulse Width Modulation (PWM) signals for advanced applications or to minimise the need for external glue logic in the design. They also contain up to two CAN communication interfaces for automotive and industrial applications. The new additions to the family of dsPIC® DSCs include variants which are offered in an 80-pin package giving designers increased memory and more interface pins to fulfil the requirements of more sophisticated designs.


The family is supported by Microchip’s free Digital Compensator Design Tool (DCDT), advanced SMPS libraries, evaluation platforms and reference designs to help accelerate the overall process of designing a digital power supply. The dsPIC33EP128GS808 family is also supported by the MPLAB ecosystem including the MPLAB® X Integrated Development Environment (IDE) and XC16 compiler.


Fourteen parts in the dsPIC33EP128GS808 family are available today to sample or purchase. The parts are available in a TQFP, QFN and SOIC package options with 28-, 44-, 48-, 64-, and 80-pin variants.




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