industry news
Subscribe Now

Power Monitoring IC From Microchip Adds Advanced Features for High-Accuracy Power Measurement in Commercial and Industrial Designs

CHANDLER, Ariz., April 21, 2015 [NASDAQ:  MCHP] — Microchip Technology Inc., a leading provider of microcontroller, mixed-signal, analog and Flash-IP solutions, today added a new member to its power-monitoring IC portfolio, the MCP39F511.  This highly integrated and accurate single-phase power-monitoring IC, designed for the real-time measurement of AC power, combines the most popular power calculations with unique advanced features, making it ideal for use in high-performance commercial and industrial products such as lighting and heating systems, smart plugs, power meters and AC/DC power supplies. 

To learn more about the MCP39F511, visit http://www.microchip.com/MCP39F511-042115a.  View a short video on Microchip’s metering products, here: http://www.microchip.com/Metering-042115a.

“The MCP39F511 power-monitoring IC is an ideal complement to Microchip’s successful energy measurement portfolio,” said Bryan J. Liddiard, marketing vice president of Microchip’s Analog and Interface Products Division.  “We listened to our customers’ feedback and added the most requested features to better support engineers in their next generation of designs, including power-hungry applications such as data centers and advanced applications such as smart energy and the growing Internet of Things.”

To address industry requirements for better accuracy across current loads, additional power calculations, and event monitoring of various power conditions, the MCP39F511 power-monitoring IC provides all of the popular standard power calculations combined with advanced features.  The import and export of active energy accumulation, four-quadrant reactive energy accumulation, zero-crossing detection and dedicated PWM output have now been integrated on-chip, along with the ability to measure active, reactive and apparent power, RMS current and RMS voltage, line frequency, and power factor.

Allowing for more accurate power measurements, which is critical to higher-performance designs, this new device is capable of just 0.1 % error across a wide 4000:1 dynamic range.  Additionally, its 512 bytes of EEPROM allow operating-condition storage.  The MCP39F511 also includes two 24-bit delta-sigma ADCs with 94.5 dB of SINAD performance, a 16-bit calculation engine, and a flexible two-wire interface.  A low-drift voltage reference, in addition to an internal oscillator, is integrated to reduce implementation costs.  This unique combination of features and performance allows designers to add highly accurate power-monitoring functions to their end applications with minimal firmware development, speeding development time. 

Development Support

The MCP39F511 is supported by Microchip’s MCP39F511 Power Monitor Demonstration Board (Part # ADM00667), which is available now for $150 via any Microchip sales representative or authorized worldwide distributor, or from microchipDIRECT (http://www.microchip.com/microchipDIRECT-042115a). 

Pricing & Availability

The MCP39F511 is available now for sampling and volume production, in a 28-lead, 5×5 mm QFN package.  It is priced at $1.82 each, in 5,000-unit quantities.  For additional information, contact any Microchip sales representative or authorized worldwide distributor, or visit Microchip’s Web site at http://www.microchip.com/MCP39F511-042115a.  To purchase products mentioned in this press release, go to microchipDIRECT or contact one of Microchip’s authorized distribution partners.

Follow Microchip

About Microchip Technology

Microchip Technology Inc. (NASDAQ:  MCHP) is a leading provider of microcontroller, mixed-signal analog, and Flash-IP solutions, providing low-risk product development, lower total system cost and faster time to market for thousands of diverse customer applications worldwide.  Headquartered in Chandler, Arizona, Microchip offers outstanding technical support along with dependable delivery and quality.  For more information, visit the Microchip website athttp://www.microchip.com/Homepage-042115a.

Leave a Reply

featured blogs
Apr 24, 2026
A thought experiment in curiosity, confusion, and cosmic consequences....

featured paper

Quickly and accurately identify inter-domain leakage issues in IC designs

Sponsored by Siemens Digital Industries Software

Power domain leakage is a major IC reliability issue, often missed by traditional tools. This white paper describes challenges of identifying leakage, types of false results, and presents Siemens EDA’s Insight Analyzer. The tool proactively finds true leakage paths, filters out false positives, and helps circuit designers quickly fix risks—enabling more robust, reliable chip designs. With detailed, context-aware analysis, designers save time and improve silicon quality.

Click to read more

featured chalk talk

Analog Output, Isolated Current, & Voltage Sensing Using Isolation Amplifiers
Sponsored by Mouser Electronics and Vishay
In this episode of Chalk Talk, Simon Goodwin from Vishay and Amelia Dalton chat about analog output, and isolated current and voltage sensing using isolation amplifiers. Simon and Amelia also explore the fundamental principles of current and voltage sensing and the variety of voltage and current sensing solutions offered by Vishay that can get your next design up and running in no time.
Apr 27, 2026
33 views