BD4735G-TR

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PMIC (Power Management Integrated Circuit) supervisors are a class of chips designed to monitor the power supply of an electronic system. They are designed to detect fault conditions such as over-current, over-voltage, under-voltage and open-circuit, protecting the component from damage. The BD4735G-TR is an example of one such component, and is a supervisor manufactured by ROHM Semiconductors for use in automotive, communications, consumer and industrial applications. In this article, we\'ll look at the application field and working principle of the BD4735G-TR.

The BD4735G-TR is a broadband supervisor circuit with a wide range of operating conditions for both input and output. It is designed to perform well even under high temperatures, and its built-in fault detection circuit monitors the voltage of three main supplies (VCC, VDD, and VREF). In addition, it is also equipped with a Reset and RESETB pin, as well as a REGTEMP pin for temperature compensation.

The BD4735G-TR is designed for use in automotive, communications, consumer and industrial applications. Its wide operating range and its high temperature-tolerance make it ideal for use in vehicles or outdoor applications, where ambient temperatures can fluctuate widely. In addition, its fault detection circuit can detect various voltage irregularities, protecting the system from over-voltage, over-current, and open-circuit conditions.

The device also provides an RESET and RESETB pin. When the output voltage reaches an abnormal value, these pins can be used to reset the device. The REGTEMP pin allows for temperature compensation, ensuring that the chip remains stable even under extreme temperatures.

The working principle of the BD4735G-TR is based on the use of a Buffer Amplifier, Comparator, Voltage Divider, and Reference Voltage. The Buffer Amplifier is used to amplify the input voltage, while the Comparator is used to compare the amplified voltage to the Reference Voltage. The Voltage Divider is used to divide the input voltage across a resistive load.

The Reference Voltage is selected to match the desired fault voltage. When the amplified voltage reaches the fault voltage, a signal is sent to the RESET and RESETB pin. This triggers the reset or fault detection circuit, which then shuts-off the power supply.

TheBD4735G-TR is a highly-reliable supervisor circuit specifically designed for use in automotive, communications, consumer and industrial applications. Its wide operating range and high temperature-tolerance make it ideal for use in a variety of challenging environments. In addition, its built-in fault detection circuit provides protection from a wide range of voltage irregularities.

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