TC54VN3002EZB

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PMIC Supervisors are power management integrated circuits (PMICs) solutions designed to protect and maintain the power integrity of devices or systems. They provide under-voltage protection and over-voltage protection against power spikes and input supply malfunctions.

One such PMIC Supervisor is the TC54VN3002EZB. It is a robust and reliable over-voltage supervisor IC that provides precision voltage monitoring and reset circuit for applications operating from 1.65V to 5.5V. It has an active low output that can be used to reset and restore system power, ensuring optimal power supply performance.

Application Field

The TC54VN3002EZB is suitable for cell-phone standby power monitoring, battery-powered applications, lens modules and wearable devices requiring high accuracy over-voltage protection. It is also suitable for embedded systems, such as digital television receivers and set-top boxes, automotive systems, office equipment and digital cameras.

The TC54VN3002EZB a compact SOT23-5 package that consumes minimal board space while still providing efficient and reliable power management.

Working Principle

The TC54VN3002EZB relies on two main components to perform its over-voltage protection. These components are the error amplifier and the comparator.

The error amplifier is a differential amplifier that amplifies the difference in voltage between its inputs. It has an operational gain of 69dB and is used to compare the voltage reference from the external circuitry and the voltage from the power supply.

The comparator compares the amplified difference with the over-voltage threshold. If the voltage is exceeding the over-voltage threshold, the reference voltage is output and the reset circuit is activated. The reset circuit then pulls the reset pin low, cutting off power to the system.

The TC54VN3002EZB also has a thermal protection circuit that ensures the device temperature never exceeds its maximum limit. This thermal protection circuit is designed to protect the device and other components from damages caused by excessive heat.

In addition, the TC54VN3002EZB features the advanced power-on reset (POR) circuitry. This circuitry ensures that the system is reset even during rapid job switch. It also features an over-temperature protection (OTP) to protect the device from high temperatures.

The TC54VN3002EZB has an enable input pin as well. This pin allows the user to control the reset function by providing a logic level high signal at the EN pin. With the enable pin, the user can power up the system with the reset command already enabled and thus prevent any undesired power on reset.

The TC54VN3002EZB is an efficient, robust and reliable over-voltage protection IC that provides a high level of accuracy and protection. Its small form factor and low power consumption make it ideal for embedded, battery-powered and portable applications. With all its features combined, it is the ideal solution for providing over-voltage protection in a variety of environments.

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