UCC3882PWTR-1

UCC3882PWTR-1 is a special purpose voltage regulator device which is commonly used in applications that require precise voltage control. It is typically used in various I/O circuits, power distribution and clock generation and monitoring systems. The device is classified under the PMIC (Power Management Integrated Circuit) category, Voltage Regulators and Special Purpose subcategory.

Device Features

The UCC3882PWTR-1 is a switching regulator device that offers precise voltage regulation and protection, featuring an adjustable 3A peak sink current limit, an adjustable 1.32A source current limit, and an overvoltage protection of 600V. It has a single adjustable output voltage, provides variable slew rate, and a soft-start power up option. It is available in space saving Wettable Flank-type (WTR) package.

Working Principle

The UCC3882PWTR-1 is a highly efficient, single-channel, adjustable output voltage converter that belongs to a class of regulators known as switching converter regulators. It works on the fundamental way of controlling the output voltage by dropping the voltage that is input to an adjustable power converter. The power converter is a switching bridge that synchronizes switching from one direction to another to regulate the output voltage. The control element used in this design is an error amplifier which is fed by two voltage inputs: one from the output voltage source and the other from the feedback node.

As far as the control action is concerned, the output current regulation is implemented by the current limit controller circuit which is connected to the power switches. In order to perform overvoltage protection, the switch controller has two voltage comparators: one is connected to the error amplifier output, and the other one is connected to the sense resistance.

Since the UCC3882PWTR-1 operates in the switching mode, it consumes lesser power than conventional linear regulators. Moreover, it reduces the power dissipation in the system since only switched elements are used. However, due to the switching current and voltage, the device produces electromagnetic noise which means appropriate shielding and noise filtering must be employed for the device to be used in sensitive circuits. In order to reduce the power consumption of the device and switch loss, it is recommended to use a separate transformer or inductors with proper magnitude of current to reduce the circulating currents in the converter.

Applications

The UCC3882PWTR-1 device is mainly used in applications that require precise voltage control such as power management devices, microprocessor cores, I/O ports, clock generation and monitoring systems, etc. It is also used in a variety of home electronics, telecommunications, portable electronic device, automotive, and industrial control applications where extreme efficiency and/or robustness are of prime importance.

Conclusion

The UCC3882PWTR-1 is a special purpose voltage regulator device which is classified under the PMIC, Voltage Regulators and Special Purpose subcategory. It offers precise voltage regulation and protection and is available in a Wettable Flank-type package. This device works on the fundamental way of controlling the output voltage by dropping the voltage that is input to an adjustable power converter. It is mainly used in applications that require precise voltage control and is also used in a variety of home electronics, telecommunications, portable electronic device, automotive and industrial control applications.