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Voltage detector from Seiko aimed at automotive apps

09 Jun 2014

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Seiko Instruments Inc. has announced a series of voltage detector with SENSE pin geared for automotive use that enhances reliability in voltage monitoring and CPU reset functions for safer system operation. According to the company, the S-1910x series monitors a supply voltage and send reset signals if the supply voltage drops below the set point, allowing equipment and devices to recover safely.

An added SENSE pin is featured that allows stable output even when the SENSE pin voltage drops to zero. The innovative S-1910x series is the perfect match for voltage monitoring and CPU reset functions needed in automotive entertainment systems, audio systems, navigation systems and information displays, noted the company.

The S-1910x series was specifically developed to meet the demanding high quality requirements for automotive use, and will be AEC-Q100 certified. The S-1910x series has a wide operating voltage range from 0.95-10V, broad operating temperature range from -40°C to 105°C, low current consumption of 500nA, and a detection voltage range 1.2-5V in 0.1V steps. Further detection voltages can be set by the customer through the use of a resistance divider or diode. The S-1910x has options available with a delay circuit or without a delay circuit, and comes in the lead-free and halogen-free SOT-23-5 package.

Datasheets:

With delay circuit - S-19104/19106 Series

http://datasheet.sii-ic.com/en/voltage_detector/S19104_19106_E.pdf

Without delay circuit - S-19102/19108 Series

http://datasheet.sii-ic.com/en/voltage_detector/S19102_19108_E.pdf




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