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Temperature switch IC touts 1.65V operating voltage

Posted: 05 Jul 2011 ?? ?Print Version ?Bookmark and Share

Keywords:temperature switch? lowest power consumption? extends battery life?

Seiko Instruments Inc. has announced the availability of its S-5844 series temperature switch ICs. With its low operating voltage of 1.65V and ultra-small package of 1 x 1mm, Seiko Instruments claim that the S-5844 ICs offer the world's lowest power consumption. The series has a typical current consumption of 180nA that extends battery life and device operating time, which makes it ideal for use in smartphones, cellular phones, notebook PCs, tablet PCs and other battery operated portable device designs.

The S-5844 series has a wide temperature range 40C to 125C and allows for a wide range of applications. Temperature switch ICs are used to monitor temperature to keep devices functioning within a normal operating temperature range. The mobile/portable device market has been growing rapidly. The demand for additional functionality and higher processing speeds has increased heat generation. In addition to high density mounting and long battery life, these advanced devices require heat management to protect against malfunction.

S-5844 series

Seiko Instrument's S-5844 series of temperature switch ICs.

The S-5844 series temperature switch ICs detect the specified temperature and protects the device from heat generation by inverting its output when the temperature threshold is reached. The output voltage is restored when the temperature drops to the specified release temperature. This enables the device to avoid temperatures above its design limits, improving safety and efficiency while reducing total design cost.

The series utilizes a super-small HSNT-4(1010) package (1 x 1 x 0.4mm), enabling high density mounting. The SNT-4A package (1.2 x 1.6 x 0.5 mm) is also available.





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