VNV28N04

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Power Distribution Switches, Load Drivers, and other components commonly refer to a range of electronic components which can be used to power and control multiple disparate devices within the same system. One such class of components, called PMICs (Power Management and Control Integrated Circuits), contain both the power switching and voltage regulation sections necessary for powering a range of different devices. A specific example of this is the VNV28N04, a power management and control integrated circuit (PMIC) providing power over multiple channels. This PMIC is capable of supplying up to 28V output voltage, with ±10% accuracy, at up to 4A current. Additionally, it offers an integrated system reset and thermal shutdown capability.

The VNV28N04 is a voltage regulator and offers a ‘P-channel’ type configuration, meaning there is one P-channel MOSFET power switch and one N-channel MOSFET power switch operating at 28V. This type of configuration is often used in high power applications, due to the fact that the N-channel MOSFET has a higher current capacity than the P-channel MOSFET, allowing for more efficient power management. Additionally, the VNV28N04 has an integrated buck-boost converter, providing both a boost/buck step-down voltage conversion, and a buck switch operation for an optimized power performance. The buck-boost converter also allows for an intuitive voltage range setting, using an external resistor divider, simplifying the power control for the user.

A great way to gauge the performance of a PMIC is to examine how it handles overvoltage, undervoltage, and overtemperature events, and the VNV28N04 offers an array of protections upon these different failure conditions. The circuit contains both thermal and voltage protection, and understands when the current-limit is exceeded and will offer overcurrent protection. Additionally, it is fully RoHS certified, as well as safety and reliability certified.

The key features of the VNV28N04 can be summarized as follows:

• The VNV28N04 provides power over multiple channels and up to 28V output voltage, with ±10% accuracy, at up to 4A current.
• It has an integrated buck-boost converter that provides both a boost/buck step-down voltage conversion, and buck switch operation for an optimized power performance.
• The circuit contains both thermal and voltage protection and understands when the current limit is exceeded and will offer overcurrent protection.
• It is fully RoHS certified, as well as safety and reliability certified

The applications for the VNV28N04 are varied, as its combination of functions makes it a valuable asset for power management. Its application fields may include portable devices, automotive systems, and IoT applications. Due to its low quiescent current operation and applications in buck/boost mode, It’s also used in LED displays or LED lighting applications, providing a much smoother brightness control with its buck/boost switching.

In summary, the VNV28N04 is a power management and control integrated circuit (PMIC) capable of providing reliable and efficient power over multiple channels with up to 28V output voltage, with accuracy of ±10%, at up to 4A current. It offers an array of features, such as integrated buck-boost converter, thermal and voltage protection, and RoHS certification, making it ideal for numerous applications where power management is essential.

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