VI-24H-EX-F1

DC DC Converters

DC-DC converters are electrical circuits designed to convert power from one voltage level to another. The VI-24H-EX-F1 DC-DC converter is a single output, high-efficiency PoE module with integrated Ethernet switching and LDO. It provides up to 24V and 3A of power in a wide input voltage range. It also allows for multiple configurations using the Digital Control Pin, in order to customize the output voltage and current.

Application Field and Working Principle

The VI-24H-EX-F1 is ideal for powering Ethernet-based devices such as security cameras, VoIP phones, access points, lighting, sensors and gateways. It can also be used in industrial, medical, networking, automotive, energy and other sectors requiring high efficiency and reliability.

The VI-24H-EX-F1 DC-DC converter is a switch-mode power supply that uses a step-down transfer of energy from the main voltage to the output voltage. The module has a ‘flyback’ circuit topology, which uses two coils. The main coil draws power from the main input voltage and the auxiliary coil transfers the power to the output side. The switch regulates the circuit by alternating the current between the two coils, thus providing the required output voltage and current.

The module has a synchronous rectification circuit, with all components working in their designed state. It also has a built-in pulse-width modulation (PWM) circuitry that controls the effective switch resistance and provides a reliable and constant output. It also includes an integrated LDO to optimize the efficiency of power conversion.

The VI-24H-EX-F1 is also equipped with over-current, over-voltage, and short-circuit protection to guard against damage caused by a fault condition. Moreover, the DC-DC converter also includes ESD protection, reverse input protection, and thermal shutdown to ensure performance, safety and reliability.

Conclusion

The VI-24H-EX-F1 DC-DC converter is an efficient and reliable device that uses a high-efficiency step down power conversion technique to deliver up to 24V and 3A of power. It also has several protective features, such as ESD protection, reverse input protection, over-current, over-voltage, and short-circuit protection, to ensure safe operation and reliable performance. The VI-24H-EX-F1 is ideal for powering Ethernet-based devices such as security cameras, VoIP phones, access points, lighting, sensors, and gateways.