TL7702BIDRE4

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Power management integrated circuits (PMICs) have seen considerable developments in the past few years, allowing for more efficient, intricate power management solutions. The TL7702BIDRE4 is a type of PMIC, specifically falling under the category of Supervisors. Understanding the application field and working principle of the TL7702BIDRE4 can help engineers design more efficient and practical power solutions.

Application Field

The TL7702BIDRE4 is a high-performance voltage supervisor, designed to monitor the power guide and reset levels of a system or system of circuits. It is a highly reliable, low-cost solution that is suitable for applications such as providing reset protection or power sequencing of electronic systems. It is a particularly useful device for mission critical systems, as it provides a fine-grained control over a system’s power supply, ensuring robust voltage monitoring and reliable power management.

The TL7702BIDRE4 is a pin compatible upgrade to the TL7702BID, providing an enhanced set of features and a number of improvements. It offers extended temperature range and improved accuracy, allowing for a more reliable reset protection and power sequencing. With the built-in open-drain output driver, the TL7702BIDRE4 can be used in environments with extreme temperatures and harsh conditions, making it a suitable choice for mission-critical and embedded systems. The device is also equipped with a soft-start circuit, allowing for a gradual power-up sequence.

The TL7702BIDRE4 is a highly versatile device, with an impressive range of features that make it suited for applications ranging from consumer electronics to medical, automotive and industrial equipment. It also offers a wide range of operating voltage and temperature conditions, from 3V to 58V and from -40°C to 125°C.

Working Principle

The TL7702BIDRE4 voltage supervisor is based on a comparator circuit, consisting of two voltage comparators and an open-drain output stage. The two voltage comparators compare the incoming supply voltage to two preset levels, known as the guide voltage and the reset voltage. When the incoming voltage exceeds the guide voltage, the device signals the incoming voltage is within the correct range and the system is powered on. When the incoming voltage drops below the reset voltage, the device signals the system must be reset and the output signal is activated. The open-drain output delivery a robust and precise signal, even under extreme environmental conditions.

The TL7702BIDRE4 also comes with a number of additional features, such as a Schmitt trigger input and a soft-start circuit. The Schmitt trigger input allows the device to respond to input signals at different voltage levels, while the soft-start circuit ensures that the system starts up gradually and smoothly.

The TL7702BIDRE4 is also equipped with an integrated over-voltage protection circuit, which prevents voltage fluctuations caused by power surges or by large current flows. The over-voltage protection circuit ensures that the system’s power remains within the preset ranges, providing reliable and controllable power delivery.

Conclusion

The TL7702BIDRE4 is a versatile and reliable PMIC, specifically designed for power management and reset protection. It offers an impressive set of features, including extended temperature range, improved accuracy and an open-drain output driver. The integrated Schmitt trigger and over-voltage protection circuits ensure reliable power delivery and safe startup, even under extreme environmental conditions. The TL7702BIDRE4 is a suitable choice for mission-critical and embedded systems, as well as for a broad range of applications in consumer electronics, medical, automotive and industrial equipment.

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