Single-Chip Digitally Enhanced Power Analog Solution for DC-DC Power Conversion

Single-Chip Digitally Enhanced Power Analog Solution for DC-DC Power Conversion

A Digitally Enhanced Power Analog product for DC-DC power conversion is now available from Microchip Technology Inc. The single-chip solution controls DC-DC converters and is capable of accepting a high voltage input (up to 42V) while simultaneously regulating a wide output voltage range (300 mV to several hundred volts, depending on topology). The device is ideal for industrial and automotive environments and is particularly suited for battery charging and LED drive applications. 

The MCP19215 is a dual controller, offering the ability to control two flyback, SEPIC, boost and/or Ćuk circuits simultaneously. The two circuits can even be different topologies. Alternatively, it can be configured to control one power train bidirectionally, maintaining voltage or current regulation in either direction through the power converter. This allows the circuit to dynamically switch between constant voltage and constant current operation, while also switching the direction of the power conversion. The benefits of this include the ability to use the same power supply to control both power in to and power out of a storage device (like a battery or a super-capacitor) while fuel gauging. In addition, it can switch automatically between sourcing and sinking power with a fast response time. This will maintain power on critical system voltage rails in a server or automation application, or conserve power in a renewable energy or automotive application.

All of the major performance parameters are completely configurable within the microcontroller core that is managing the analog control loops within the device. Current limit, operating frequency, fault responses, and over- and under-voltage lockouts can all be tailored to the application.

More information: Microchip