SR2UARU Integrated Circuits (ICs)

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Power management integrated circuits (PMICs) are a key component in the design of electronic systems and are essential in providing energy supply and management, monitoring and control of critical systems. PMICs can be used to protect a system from over-current or under-voltage — and are frequently used to monitor and adjust the power supply in conditions such as low-power idle or high-power demands. Supervisors are PMICs that are specifically designed to monitor and manage the health of a system providing additional protection and system-level control.

SR2UARUs are a type of supervisor PMIC designed to protect systems from over-current and under-voltage conditions. These devices monitor the voltage, current and temperature of the system and provide additional features such as auto-restart and over-temperature protection. SR2UARUs are used in automotive, industrial and communications applications.

Working Principle

The SR2UARU supervisor PMIC works by constantly monitoring the system’s input power supply, regulation and output voltage. An internal comparator monitors the input voltage and shuts down the system if it falls below the pre-set threshold voltage. An over current protection circuit limits the amount of current sourced or sunk by the system. The SR2UARU also monitors the output voltage and can shut the system down if it exceeds the pre-set threshold.

Additionally, the SR2UARU contains temperature monitoring circuitry which can be used to shut down the system if the temperature exceeds a pre-determined limit. The SR2UARU monitors the internal temperature of the circuit and can also measure external temperatures of devices such as batteries or ICs.

If the system is subjected to any of the above conditions, such as over-voltage, under-voltage or over-temperature conditions, the SR2UARU will shut down the supply temporarily. After the critical conditions are no longer present, the SR2UARU will restart the system automatically. This feature allows for a more resilient and safer system design.

Application Field and Benefits

SR2UARUs are used in a wide range of automotive, industrial, and communication applications. Examples include automotive powertrain control modules and voltage regulators, industrial logic and processor modules, automotive navigation systems, and radio transceivers.

The benefits of the SR2UARU include improved system protection and reliability. The SR2UARU is able to detect and monitor abnormal input voltages or currents and shut the system down before they can cause damage or reduce system performance. The auto-restart feature also decreases system downtime and reduces servicing costs. By monitoring internal and external temperatures, users can also ensure that their system remains within safe operating temperatures.

The SR2UARU offers a single component solution to provide system-level monitoring and protection to users in a wide range of industries. The integrated features of the SR2UARU reduce component count and system complexity to help users save on design costs.

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