DS1819CR-10-U

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PMIC - Supervisors are specialized integrated circuits (ICs) used to protect microcontrollers, processors, or systems from power or electrical faults. They monitor system states and provide a way to control power systems. The DS1819CR-10-U is a supervisor IC that can provide over-voltage protection and over-current protection in low power applications.

Applications

The DS1819CR-10-U is a precision integrated protection device, designed to protect electronic circuits from over-voltage and over-current faults. The IC may be used in industrial systems, consumer electronics, automotive electronics, internet of things (IoT), and other applications where extreme precision and reliability in voltage and current protection is important.

For example, in consumer electronics, the DS1819CR-10-U can be used to protect against power supply over-voltage and over-current conditions, preventing device malfunctions, power surges, and potentially dangerous situations. In automotive applications, the supervisor IC can be used to protect from over-voltage in electrical power systems, and to monitor and detect any discrepancies in voltage, current, or temperature. It can also monitor the fault conditions of down to 6.25V supply, over-voltage, or an IMVP-6 compliant current conditions.

Features

The DS1819CR-10-U supervisor IC has several features that make it ideal for use in various low power applications.

• It provides over-voltage protection and over-current protection, using a precision integrated circuit design.
• It is a small, low power IC and requires very low quiescent current (1.7µA) to operate.
• It is compliant with IMVP-6 voltage protection requirements.
• It has an adjustable over-voltage protection window that is accessible through a serial interface.
• It has an adjustable over-current protection window that is also accessible through a serial interface.
• It offers two selectable Undervoltage Lockout (UVLO) trip points that can be programmed through an interface.
• It has an internal temperature range of -40 to +85°C.
• It is provided in a small 6-lead SOT-23 package.

Working principle

The DS1819CR-10-U supervisor IC works by continuously monitoring the operating voltage and current of the system. When either of these exceed the set limits, the supervisor IC will automatically shut down the system and reset it when the fault condition is cleared. The over-voltage and over-current protection windows are adjustable and can be programmed through the serial interface. The two selectable Undervoltage Lockout (UVLO) trip points can also be programmed through the same serial interface.

The DS1819CR-10-U supervisor IC is also capable of monitoring junction temperature and it provides overtemperature protection with an alarm output. The alarm output can be used to signal an over-temperature alert, or to control external devices.

Conclusion

The DS1819CR-10-U is an advanced IC designed for low power applications. It provides over-voltage and over-current protection and monitors the junction temperature of the system. It has several features that make it suitable for various applications such as industrial systems, consumer electronics, automotive electronics, and internet of things (IoT). Its adjustable over-voltage and over-current protection windows and selectable Undervoltage Lockout (UVLO) trip points can be programmed through the serial interface.

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