Question 1

What is the manual reset function? (Voltage Detectors (Reset ICs))

Accepted Answer

The manual reset function is a function that can forcibly output a reset signal by inputting a signal to the MR (Manual Reset) pin of the reset IC.By utilizing this function, the reset signal can be switched regardless of voltage. For example, by connecting the MR pin to an external switch of an electronic device, the output of the reset IC can be controlled at the user's will.

Question 2

What is the supply voltage divided output? (Voltage Detectors (Reset ICs))

Accepted Answer

The supply voltage divided output is a function that divides the sense pin voltage (Vsense) of the regulator into Vsense/6, Vsense/8, Vsense/12 or Vsense/14 and outputs the voltage. For example, this function makes it possible that the IC connects to a low voltage microcontroller A/D converter directly and the microcontroller monitors a battery voltage.

Question 3

What is a Detection delay time/Release delay time? (Voltage Detectors (Reset ICs))

Accepted Answer

The "detection delay time" refers to the time from when the voltage of the monitored object falls below the detection voltage to when the reset signal is output. On the other hand, the "release delay time" refers to the time from when the voltage reaches the detector threshold to when the reset signal is released.

Question 4

What is  the detection voltage input pin (SENSE pin) ? (Voltage Detectors (Reset ICs))

Accepted Answer

The voltage input to the SENSE pin, not the supply voltage of the reset IC, is monitored and detected. By providing a separate input pin for the monitored voltage from the VDD pin (=power supply pin), the reset IC is not affected by the monitored voltage and can stably output a reset signal even if the monitored voltage drops to 0V.

Question 5

Are there any concerns regarding leaving the NC (No Connection) pin open for the S-19110 Series? (Voltage Detectors (Reset ICs))

Accepted Answer

There are no issues with using the NC pin left open.

Question 6

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? (Voltage Detectors (Reset ICs))

Accepted Answer

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

Question 7

What kind of problems occur in the S-19110 Series when large voltage dividing resistors are connected to the SENSE pin? (Voltage Detectors (Reset ICs))

Accepted Answer

If the resistance values of the external voltage dividing resistors (Rup, Rdown) connected to the SENSE pin are too high, the effect of the internal resistance of the SENSE pin becomes prominent. As a result, the variation in the detection and release voltages may become very large. Please confirm if this variation is within the acceptable range for your application.

FAQ Frequently Asked Questions

Product Category

What is the manual reset function?

What is the supply voltage divided output?

What is a Detection delay time/Release delay time?

What is the detection voltage input pin (SENSE pin) ?

What is the manual reset function?

Are there any concerns regarding leaving the NC (No Connection) pin open for the S-19110 Series?

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?

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