TC54VN1802EZB

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TC54VN1802EZB has been developed as a voltage supervisor in order to reduce complexity in PMIC applications. It provides a low-voltage reset signal that can trip when the supply voltage drops below a programmable level. This enables the part to be used for a variety of applications, such as system power-on reset, power-Sequencing and over-voltage detection. In this article, the application field and working principle of TC54VN1802EZB will be discussed in detail.

The TC54VN1802EZB is a high-performance and reliable voltage supervisor specially designed for PMIC applications. It features operating voltage range from 1.5V to 6V, which makes it suitable for a broad range of power management solutions. The parts feature an active-high reset signal output, which can trip when the supply voltage drops below the programmable threshold voltage. The reset signal output can be programmed to be either asynchronous or synchronous with the supply voltage.

In addition to its main power-on reset feature, the TC54VN1802EZB also provides over-voltage detection and power-Sequencing functions. The Over-voltage detection threshold can be programmed to detect any voltage up to 6V with the accuracy of +/-10mV. The Power-Sequencing feature of the part allows it to be used for relative power supply control, ensuring that certain rails are powered before others.

The working principle of TC54VN1802EZB is based on a voltage comparator, which compares the input voltage with the programmed threshold voltage. When the voltage at the input falls below the set threshold voltage, the output signal is asserted, indicating a low-voltage condition. The programming of the reset signal is done by controlling the voltage threshold and the output type, which can be asynchronous or synchronous with the supply voltage.

The TC54VN1802EZB can be used in a variety of applications, including system power-on reset, power-Sequencing and over-voltage detection. In system power-on reset applications, the part is used to detect a voltage drop below the programmed threshold, which can be used to activate power-on reset. In power-Sequencing applications, the part is used to ensure that certain power rails are supplied before others, by delaying the reset signal output until all the required power rails have been supplied. Finally, in over-voltage detection applications, the part is used to monitor and detect voltage greater than the programmed threshold voltage, which can be used to protect the system from over-voltage conditions.

In conclusion, the TC54VN1802EZB is a high-performance and reliable voltage supervisor designed for PMIC applications. It features operating voltage range from 1.5V to 6V and provides reset, over-voltage detection and power-Sequencing functions. The reset signal output can be programmed to be either asynchronous or synchronous with the supply voltage. The part can be used for a variety of applications, such as system power-on reset, power-Sequencing and over-voltage detection.

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