Microchip Debuts Most Accurate 2-Wire Thermal Sensors in SOT-23 Package

11/23/2004 - Microchip Technology Inc., a leading provider of microcontroller and analog semiconductors, announced the industry’s most accurate digital-temperature sensors in space-saving SOT-23 packages. With a +/-1 degree Celsius maximum temperature error, these devices retrieve temperature data, digitally convert it and communicate the information to the microcontroller or central processing unit. This gives designers the ability to better protect their applications and to respond to thermal changes faster as the device accurately measures temperature, protects and/or calibrates the system and provides thermal information using minimal board space.

Microchip’s MCP980X devices convert and communicate the temperature data in about 30 milliseconds (for 9-bit resolution) via an industry standard I2CTM or SMBus interface enabling fast identification of thermal issues within the system. Available in a SOT-23 package and no external components necessary, designers can minimize board space and component count while offering sophisticated thermal protection to their applications.

These digital-temperature sensors only use 200 microamps of operating current and have a shutdown current of 0.1 microamp, which extend battery life. With a one-shot temperature measurement mode the devices wake up only when the temperature needs to be read and then go back to sleep, which also minimizes power consumption.

The devices offer high resolution (up to 12-bits) which allows for quick anticipation of temperature changes and detection of minor trends in degree changes. This flexible temperature resolution adjusts the conversion time depending on the system needs, assuring that the temperature is read and communicated faster to the outside world.

The SMBus system timeout available on the MCP9802/3 devices enable better system reliability by preventing the communication bus from locking up.

Microchip’s digital-temperature sensors are ideal for telecom and networking equipment, office equipment, notebook and servers, battery management, HVAC, process control and general-purpose temperature measurement and thermal protection.

The MCP9800/2 are available in a SOT-23 package and feature internally set slave addresses. The MCP9801/3 are available in MSOP-8 and SOIC-8 packages and offer user-programmable slave addresses. The MCP9802/3 offer an SMBus timeout. Pricing for the MCP9800 in 1,000-piece units in the 5-pin SOT-23 package is $0.86 USD each, the MCP9801 in the 8-pin MSOP and SOIC packages is $0.81 USD each, the MCP9802 in the 5-pin SOT-23 package is $0.91 USD each and the MCP9803 in the 8-pin MSOP and SOIC packages is $0.86 USD each. Samples and volume production are available now. For more information, contact any Microchip sales representative, authorized Microchip distributor around the world or visit www.microchip.com/MCP9800

Microchip Technology Inc. (NASDAQ: MCHP) is a leading provider of microcontroller and analog semiconductors, 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 www.microchip.com.

The Microchip name and logo, are registered trademarks of Microchip Technology Inc. in the USA and other countries. I2C is a trademark of Philips. SPI is a trademark of Motorola.

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