PH75S280-24

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DC to DC converters are an integral part of the electronic system on board any type of vehicle or aircraft. PH75S280-24 is a DC to DC converter specifically designed for use with modern aircraft, featuring high output voltage of 24 V with a maximum power of 400 W. Its small size and light weight make it suitable for applications with tight space limitations, such as onboard navigation systems, frequency generators and in-flight entertainment systems.

The PH75S280-24 is a low-dropout (LDO) linear DC/DC converter that operates on a wide input voltage range of 10-35 V. It accepts a minimalist input voltage, requiring only a single positive rail of 10-35 V to be applied. The voltage is regulated to a precise and stable 24 V output at up to 400 W, which can then be used as a supply voltage for various electronic devices. The converter can operate in extreme ambient temperatures, between -40°C and +85°C, due to its excellent heat sinking capability.

The converter has two outputs, either in a TO-220 package or plug-in board with an integrated electromagnetically shielded HE-SIP connector. The current load is adjustable from 0A to 17A with built-in current limit, short circuit protection and over-temperature shutdown. The output voltage is continuously monitored and maintained to a very stable 24 V under various loads and environmental conditions.

PH75S280-24\'s principle of operation is based on the design of a linear regulator IC, with PWM (Pulse Width Modulation) feedback. The output voltage is sensed by the regulator via a feedback network, which then compares it to a reference voltage each time it is measured. This reference voltage is determined by the external pair of resistors, which set the desired output voltage. The regulator will then adjust its output, either by increasing or decreasing the duty cycle of the PWM, so as to keep the output voltage as close to the set point as possible.

The PH75S280-24 is ideal for many applications, including avionics, portable electronics, medical systems, UAVs, and aerospace. Its high power efficiency of 85% and low output noise enable it to be used in high precision applications, such as the control of satellite systems. It is also compliant with the latest EMC legislations, with the ability to work with wider temperature regimes than other converters available on the market.

In conclusion, the PH75S280-24 is a reliable and powerful DC/DC converter suitable for a variety of applications. Its closed-loop design and a wide input voltage range make it ideal for applications with tight space limitations, while its proven durability and high power efficiency make it an ideal choice for any aerospace or high-precision applications.

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