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Temp sensor monitors two app processor ASICs

Posted: 15 Feb 2010 ?? ?Print Version ?Bookmark and Share

Keywords:temperature sensor? application processor? ASIC?

SX8733 temp sensor

From Semtech Corp. comes the SX8733 temperature sensing and monitoring device with the small size, low power draw, high precision and integrated functionality necessary to monitor system temperature in computers, printers, video projectors, servers, routers and other consumer electronics both when they are operating and are in sleep mode.

The SX8733 combines one integrated temperature sensor with monitoring electronics to directly connect up to two temperature diodes. It is suitable for monitoring one or two application processor ASICs in addition to its own temperature for applications such as appliances or computers enabling the system to safely and reliably go into energy saving sleep mode without a concern of overheating.

The device drives the sensing diodes with a variable current and converts that into temperature information. It reads sequentially up to two external sensors and its internal sensor; the external sensors can be discrete diodes or transistors to monitor the temperature of active mechanics like hard drives, or these can be temperature diodes embedded in VLSI ASICs.

In addition, the SX8733 is addressed through SMBus protocol; it can autonomously set or reset alarms if the sensor temperature exceeds programmed thresholds, allowing for controlled cooling while the system is shut down.

The SX8733 comes in a 3mm x 3mm MLPD6 leadless 6-pin package that is RoHS- and WEEE-compliant. Pricing is $0.35 each in 10,000-piece lots. The SX8733 is available immediately in production quantities.

- Ismini Scouras
eeProductCenter





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