Greater Accuracy With Low-Cost Multi-Channel Temp Sensor Family

Measurements of Lower Temps, Outdoor & Industrial Uses with MCP990X Family ICs

MCP9903/MCP9904 temperature sensors

MCP9903/MCP9904 high accuracy, low cost, System Management Bus (SMBus) temp sensors

CHANDLER, AZ, USA — /PRNewswire/ — Microchip Technology Inc. has announced the MCP990X family of System Management Bus (SMBus) temp sensor ICs for monitoring of up to four channels in cold, outdoor and industrial low-temperature applications.

Such uses range from freezers and refrigerators to base stations and remote radio units.

With ±1 °C maximum accuracy for both external and internal diode temperatures over the measurement range from -40 °C to +65 °C, these ICs provide a low-cost, highly flexible solution where precision is needed at lower temperatures.

Advanced features of the MCP990X family include remote diode temperature measurement with resistance error correction that compensates for voltage drops from connectors and long board traces, enabling accurate readings of up to 20 inches away from the IC.

Injected system noise from components such as DC-DC converters and backlight inverters is also minimized with a sample-frequency hopping filter, allowing for easier placement and routing.

The combination of these features with options for dual, triple and quad temperature monitoring provides for a wider range of measurement opportunities for an entire system with a single IC.

“Extending our thermal-management portfolio to include a focus on colder remote and industrial applications gives us a unique offering in the industry,” said Bryan J. Liddiard, marketing vice president of Microchip’s Mixed-signal and Linear Products Division.

“These devices complement system designs for our extensive line of microcontrollers as well, helping to ease development time based on the sensing and processing needs of end products.”

Compact package options that take up less silicon space on the PCB and allow for smaller system solutions and better product design for temperature critical applications include a 2×2 footprint for the MCP9902 dual channel temperature sensor. The IC is the smallest temperature sensor in Microchip’s portfolio and 33 percent smaller than the company’s previous generation dual temperature sensor. Additionally, a 3×3 footprint package is available for the MCP9903 triple and MCP9904 quad temp sensors.

Development Support

Microchip also introduced the MCP9902 Evaluation Board (part # ADM00615) today, to enable development with the MCP9902 low temp sensor. This board is available now for $35.00 from microchipDIRECT (http://www.microchipdirect.com/ProductSearch.aspx?Keywords=MCP990X) and any of Microchip’s authorized worldwide distributors.

Pricing and Availability

All three members of the MCP990X are available today for sampling and volume production, starting at $0.46 each in 5,000-unit quantities.

The MCP9902 is offered in an 8-pin, 2×2 WDFN package.

The MCP9903 and MCP9904 are available in a 10-pin, 3×3 DFN package.

For additional information, contact any Microchip sales representative or authorized worldwide distributor, or visit Microchip’s website at http://www.microchip.com/MCP990x. To purchase products mentioned in this press release, go to microchipDIRECT or contact one of Microchip’s authorized distribution partners.

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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 at http://www.microchip.com.

Note: The Microchip name and logo is a registered trademark of Microchip Technology Incorporated in the U.S.A. and other countries. All other trademarks mentioned herein are the property of their respective companies.

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