S-1000C30-N4T1G

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Supervisors - S-1000C30-N4T1G Application Field and Working Principle

The S-1000C30-N4T1G is a microcontroller supervisor IC for system reset and voltage monitoring applications. It monitors one or two power supply voltages up to 3.6V, providing an adjustable reset timeout under any combination of VCC input conditions and a watchdog timer reset. The device also features an active-high and an active-low reset output.

Application Field

The S-1000C30-N4T1G is ideal for keeping a system running when two or more batteries are disconnected and for monitoring a 3.6V system power supply voltage. It can also be used in low-power systems, in GSM phones and other wireless devices, and as a watchdog timer to detect system lockups.

It is also commonly used in applications such as battery charging systems, where it can be used to detect overcharging or over-discharging of batteries, in sleep mode systems where it can be used to monitor the current state of the system, and in automotive electronics, where it can be used to monitor the current state of the vehicle.

Working Principle

The S-1000C30-N4T1G works by using two internal voltage supervisors to monitor input voltages at two predetermined thresholds. The lower thresholds are typically used for resetting a microcontroller if it falls below a specified level, and the higher thresholds are used for monitoring higher voltages. It can also be used for other types of applications such as a watchdog timer, where it can be used to detect lockups in the system or undervoltage or overvoltage conditions.

If the input voltage drops below the lower threshold the device will assert a reset signal. This can be used to reset the microcontroller or other control circuitry. It can also be used to indicate an undervoltage or overvoltage condition, depending on the application. When an undervoltage or overvoltage condition is detected the device will assert an active low signaling the faulty power condition.

The device also features an adjustable reset timeout. This allows the microcontroller to be held in reset state for a specified period of time before the reset is de-asserted. This can be used in sleep mode systems to temporarily reset the system, and allows the microcontroller to detect the correct sleep mode conditions before restarting.

Finally, the device also features a watchdog timer reset. This is used to detect system lockups and allow the system to reset and restart. This can be used in applications such as battery chargers, to detect overcharging or over-discharging of batteries and ensure the system does not become locked up.

Conclusion

The S-1000C30-N4T1G is a versatile microcontroller supervisor IC that is ideal for system reset and voltage monitoring applications. It is widely used in battery charging systems, sleep mode systems, automotive electronics, and other wireless devices such as GSM phones. It uses two internal voltage supervisors to monitor input voltages and contains an adjustable reset timeout and a watchdog timer reset.

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