UCQ-2.5/40-D24PB-C

DC DC Converters

A DC DC Converter is a device which is designed to convert a DC input voltage source to a different level DC output voltage. This makes it a versatile electrical component that can be used for a variety of applications, ranging from power isolation and voltage regulation to powering electronic equipment located in remote areas.

The UCQ-2.5/40-D24PB-C is an example of a DC DC Converter which is specifically designed to provide 40W of output power with an operating input voltage from 2.5V up to 40V. It features an unusually high efficiency of up to quadruple the efficiency of similarly rated products, and offers remote on/off control with a 0V signal and protection from over-current and over-temperature.

Application Field

The UCQ-2.5/40-D24PB-C DC DC Converter is best suited for applications in which high efficiency and a wide operating range are required. It is particularly useful for powering devices located remotely where long power lines may reduce system efficiency and limit output power, and can also be used to step down a higher voltage DC source to a useful output level.

As this Converter can operate from a wide range of input voltages, it is also suitable for applications on board of ships, motor vehicles, and other mobile equipment.

Working Principle

The UCQ-2.5/40-D24PB-C DC DC Converter follows a switching topology which combines high efficiency with low standby current. Its internal circuit is composed of several devices, including a step-down transformer, a power switch, control circuits, and protection circuits.

When the power switch is enabled, the input voltage is transferred through the transformer, the control circuits regulate the voltage output in relation to the current passing through the converter, and the converter itself passes a regulated output voltage through the output terminals.

If at any point an over-current or temperature fault is detected in the converter, the internal protection circuits will shut down the power switch and the safety latch circuit will maintain the converter in this state, until a valid 0V signal is received on the remote on/off pin.

The UCQ-2.5/40-D24PB-C also features an adjustable output over-voltage protection circuit, allowing the output voltage to be limited based on the system requirement, and thereby avoiding any damage that would result from over-voltage on the output terminal.