The SX8733 is a 3 mm x 3 mm device that 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 SX8733 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.

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 3x3 mm MLPD6 leadless 6-pins package that is RoHS and WEEE compliant.

Pricing: $0.35 each in 10,000-piece lots.
Availability: The SX8733 (order code: SX8733EWLTRT) is available immediately in production quantities.
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Semtech Corp., www.semtech.com