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Home > Technology List > Photo Detect IC consumes 0.1 nA typ at 5.5 V supply.

Photo Detect IC consumes 0.1 nA typ at 5.5 V supply.

Update Time: 2019-12-19 12:15:08

- Innovative S-5470 Series ICs Combined with Photovoltaic Device Achieve World's First Zero-power Consumption Light/Dark Detection Switch -

TOKYO -- Seiko Instruments (SII) announced on July 23 the new S-5470 series of photo detect ICs that enable design of light/dark detection switch circuits with zero power consumption (nW class) when combined with a photo diode, LED, or other photovoltaic devices.

Due to the photo voltaic effect, photodiodes and LEDs generate tiny electrical current when exposed to light. Conventional ICs require amplifiers to sense the minute current, and consume significant power to operate. In contrast, SII's new S-5470 series ICs detect the same minute current without the need for amplifiers using SII's unique low-power CMOS technology. This approach has achieved zero-power consumption (nW class) circuit designs. It also enables the design of shading detection switches based on illumination differences between two photo voltaic devices.

Typical applications include auto power-off functionality detecting light/dark conditions, automatic lighting during darkness, and non-contact switching when the device is covered by a hand. Some examples would be a wireless mouse that turns itself on when the user grasps it for use; smartphones that activate when their covers are opened; clocks that inactivate chimes during periods of darkness; equipment that operates when its box is opened, and the like.

The S-5470 series ICs feature super-low power consumption: 0.1 nA (typ.) at a 5.5V supply voltage; can be used with a number of different photovoltaic devices including photo diodes, LEDs, solar batteries, etc.; wide operating voltage range: 0.9V-5.5V; and small SOT-23-5 package (2.9x2.8x1.3 mm.)

Detailed information: http://datasheet.sii-ic.com/en/photo_ic/S5470_E.pdf

Please visit: English: http://www.sii-ic.com/en/ Chinese Simplified: http://www.sii-ic.com/cn/

About Seiko Instruments Inc. (SII) Major subsidiary of Seiko Holdings Corporation (TSE: 8050). Develops, manufactures and sells electronic components, communication products and solutions, printers, watches, precision components and machine tools, and measurement and analysis instruments. For more details, please visit http://www.sii.co.jp/corp/eg/index.html

Contact: Tomohiro Io Corporate Communications Dept. Seiko Instruments Inc. Tel: +81-43-211-1111 e-mail: pr@sii.co.jp Online Inquiry: http://speed.sii.co.jp/pub/corp/pr/inq_menu_en.jsp

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