ISO5125I-45

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Introduction:

ISO5125I-45 is a kind of DC DC Converter, which is suitable for use in a variety of applications, especially in the data processors, industrial control systems, radar, guidance systems, medical and communications systems, as well as in energy storage systems. The ISO5125I-45 is designed to provide high efficiency, low noise and high reliability. It is also designed to provide a high degree of protection against damage due to electrical discharge, excessive power dissipation, and input short circuits.

Application Field:

The ISO5125I-45 DC-DC Converter series provides a wide range of input and output voltage combinations from 3.3 Vdc to 12 Vdc, with rated output current up to 30 A. The operating frequency is 250 kHz, with a basic regulation of 0.4% max down to 0.2%. The full line of ISO5125I-45 DC-DC Converters provides a wide range of output ranges, protection features and low EMI levels.The full featured series includes input under voltage protection, short Circuit protection, input overvoltage protection regimes, remote ON/OFF control, soft switching, and inrush current limiting. The built-in power switch and the low EMI “spread spectrum” modulation circuit, allow the ISO5125I-45 DC-DC Converter series to be suitable for MIL-STD-461 E, F, G, and DD requirements.

Working Principle:

The ISO5125I-45 DC-DC Converter utilizes a push-pull chopper topology with a pair of synchronous MOSFETs to control the output voltage. A high frequency pulse width modulation (PWM) switching is applied to realize the power conversion.The ISO5125I-45 DC-DC Converters have a constant switching frequency of 250 kHz, with an adjustable switching duty cycle of 0–100 %. The output voltage is stabilized with the current mode control, which has line/load regulation and fast transient response characteristics.The current mode control provides tight input/output voltage regulation, no overshoot, low output ripple and no need for external noise filter, making the ISO5125I-45 series suitable for sensitive applications. Built-in protection features include thermal shutdown, input overvoltage/undervoltage protection, current foldback and short circuit protection, as well as soft start “inrush” current limiting.

Conclusion:

The ISO5125I-45 is an ideal DC-DC converter for applications requiring high efficiency and optimal performance. With its wide range of input and output voltage combinations, impressive line/load regulation, protection features, and low EMI levels, the ISO5125I-45 series will serve any application with the highest quality.

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