S-80139ANPF-JCYTFG

S-80139ANPF-JCYTFG is a supervisor device designed for embedded system with power-on reset (POR) and watchdog reset function. This monolithic device pair can provide excellent protection and reset in a short time and of consume low current. It is typically used in high reliability and safety-critical system.

Application Field

The application field of the S-80139ANPF-JCYTFG covers broadly in the medical, industrial, automotive and communication markets, providing superior reset and protection capability. In these applications, it is used to detect the microprocessor (MCU) reset and abnormal power supply related dysfunctional conditions, thus helping to protect the system and ensure that it functions properly.

The device is suitable for resetting MCUs, embedded system and battery backup systems. Additionally, the S-80139ANPF-JCYTFG is able to detect undervoltage and overvoltage, current leakage protection and pre-determined low power supply voltage for powering the system.

The device can also be used to monitor the system power supply and reset the MCU when it detects a malfunctioning supply. This ensures that the system behaves properly before the supply voltage recovers. The device is able to detect a malfunction of the system, then reset the MCU and re-start the system as soon as it is able to detect the healthy supply voltage.

Working Principle

The S-80139ANPF-JCYTFG consists of two dies: a reset generator and watch dog timer. When both devices are enabled, they form a composite device to provide reset, watch dog timing and overvoltage/undervoltage protection function. The device is powered by an external supply voltage and includes two power pins.

The reset generator contains a programmable reset timer which continuously monitors the system voltage and will reset the MCU when it detects a low system voltage or an overvoltage. This functionality ensures that the MCU will be reset when the system is malfunctioning. The device also provides a reset pulse when detecting a malfunction. This reset pulse is designed to be programmable, allowing the user to specify the duration of the pulse.

The watchdog timer monitors the system regularly and if it detects a malfunction, it will push a reset signal to the MCU. This function is used to prevent the system from entering a lockup condition. This watch dog timer is designed to be programmable, allowing the user to select the frequency of the timer and the type of reset (active low, active high, active and passive).

The S-80139ANPF-JCYTFG can operate in two modes, a manual reset mode or an automatic mode. The manual reset mode provides an easy way to issue a reset command in order to restart the system. The automatic mode allows the watchdog timer to trigger a reset whenever the system detects a malfunction. This ensures that the system will be restarted, preventing it from getting into an unexpected state.

The S-80139ANPF-JCYTFG also provides protection against overcurrent, reverse voltage and short circuit conditions, as well as under voltage protection. These features help to protect the MCU from unexpected conditions, ensuring that the system can operate safely and reliably.

In conclusion, the S-80139ANPF-JCYTFG is a highly reliable, low-power consumption and cost-effective supervisor device that is suitable for embedded system with power-on reset (POR) and watchdog reset function. It is able to detect a range of abnormal supply voltages, and reset the MCU to ensure that the system behaves properly when it is able to detect the healthy supply voltage. This device is designed to provide superior reset and protection capability in a range of different application fields.