FAQ Frequently Asked Questions

How to calculate Min and Max of Watchdog output "L" time

The following is an example of Watchdog output "L" time Min, Typ, and Max by CDLY capacity. Refer to...

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How to calculate Min and Max of Watchdog output "L" time

The following is an example of Watchdog output "L" time Min, Typ, and Max by CDLY capacity. Refer to...

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How to calculate Min and Max of Watchdog double-pulse detection time

The following is an example of Watchdog double-pulse detection time Min, Typ, and Max by CDLY capaci...

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How to calculate Min and Max of Watchdog output "L" time

The following is an example of Watchdog output "L" time Min, Typ, and Max by CDLY capacity. Refer t...

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Is there a recommended output capacitance (CL) for the S-19212 Series when using a ceramic capacitor? Also, what's the reason for this selection?

The S-19212 Series recommends an output capacitance of 1μF or more. We've confirmed that the device ...

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For the S-19110 Series, what is the recommended order or time difference for applying voltage to the VDD and SENSE pins during power-on?

There are no operational issues as long as the SENSE pin voltage rises either at the same time as, o...

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What kind of problems occur in the S-19110 Series when large voltage dividing resistors are connected to the SENSE pin?

If the resistance values of the external voltage dividing resistors (Rup, Rdown) connected to the SE...

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For the S-19509 Series, in what frequency range should the ESR of the output capacitor (CL) be considered?

The frequency range that affects the stability of the IC is 1kHz to 10MHz. Please ensure that the ES...

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Does the S-19509 Series alone support functional safety (ASIL)?

The S-19509 Series is not ASIL-compliant on its own, as it is a product developed under QM (Quality ...

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When the EN (Enable) pin of the S-19509 Series is OFF, will voltage from the VOUT (Output) side flow back to the VIN (Input) side and damage the IC?

A reverse current from VOUT to VIN does occur through the parasitic diode inside the IC, but this wi...

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