DS1231-50

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PMIC-supervisors are integrated circuits that are designed to protect systems from catastrophic events. They provide a variety of features that help system controllers maintain link stability and reduce risk of data loss. One such device is the DS1231-50, a low-power supervisor device that can be used to monitor power supply conditions and reset microcontrollers, memory and other applications in a system. This article will discuss the application field and working principle of the DS1231-50.

The DS1231-50 is best suited for automotive and industrial applications that require precision monitoring of power supply conditions. The device\'s small, thin package makes it suitable for places with limited space, and its low power consumption ensures that it won’t drain system resources. The device can be placed in a variety of locations, such as on a circuit board, in an electromechanical unit or in a removable carrier, depending on the system\'s needs.

The DS1231-50 supports a variety of analog power supply monitoring functions. When the power supply corrupts, the device will immediately trigger a reset to the system and protect it from potential data loss. The device also supports manual reset if desired. Additionally, the device offers two output pins for manual reset and overvoltage protection.

The DS1231-50 has two monitoring voltages: an internal voltage and a user-programmable voltage. The internal voltage is used to monitor the power supply conditions, while the user-programmable voltage is used to monitor special conditions, such as a temperature alarm or a shut down alarm. The internal voltage range is between 1.25V to 2.5V with 0.5V increments, while the user-programmable voltage range is between 0.46V and 4.62V with 0.02V increments. The device supports reset delay time and time-out parameters to ensure safety and reliability.

The DS1231-50 has an on-chip comparator and EEPROM for storing user-programmable data. The comparator can compare the voltage from the power supply to the internal and user-programmable voltage. If the voltage is greater than the user-programmable voltage, the device will immediately trigger a reset. The EEPROM is used to store user-programmable data, including reset delay time, time-out, power-on reset, connector name, and other information.

The DS1231-50 also supports automatic power-on reset and power-down reset. Automatic power-on reset ensures the system controller is ready to go when the device detects a valid power supply. Power down reset ensures the system controller is reset prior to shutting down the system, adding an extra layer of protection. The device also supports dual-voltage detection, allowing it to monitor two different power supplies at the same time. This can be especially useful in automotive and industrial applications.

In summary, the DS1231-50 is a low-power supervisor device that is designed to protect systems from catastrophic events. It offers a variety of features, including precision monitoring of power supply conditions, reset functions, on-chip comparator and EEPROM, and dual-voltage detection. The device is well-suited for a variety of automotive and industrial applications and its small-size makes it suitable for places with limited space.

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