DPA424P

Special Purpose Regulators Overview

The DPA424P is a highly integrated DC-DC converter IC from the DPA-Switch family, designed for isolated power applications with input voltages ranging from 16 V to 75 V DC. It features an integrated 220 V high-frequency MOSFET and PWM control circuitry within a single package. The device supports through-hole DIP-B packaging with eight pins and operates at a fixed switching frequency of 425 kHz. It provides one isolated output channel and is rated for operation between -40°C and +150°C. Built-in auto-restart protects against output overload or open-loop conditions, while line undervoltage detection ensures compliance with ETSI standards.

Special Purpose Regulators Feature Summary

• Integrates a 220 V high-frequency MOSFET and PWM controller to eliminate up to 50 external components
• Includes built-in auto-restart protection for output overload and open-loop fault conditions
• Features line undervoltage detection capability to meet ETSI regulatory standards

Special Purpose Regulators Applications

• Power over Ethernet (PoE) powered devices
• Telecom equipment power supplies
• Industrial isolated DC-DC conversion modules

Special Purpose Regulators Procurement Notes

Verify the specific suffix designation when ordering, as package type and thermal characteristics vary across the DPA-Switch family. Confirm that the selected variant matches the required mounting style and thermal management strategy for the target application environment. Ensure compatibility with existing PCB footprints and assembly processes before finalizing procurement specifications.

Special Purpose Regulators Selection Notes

Select this component for designs requiring a compact, highly integrated solution for low-power isolated conversion within the 16-75 VDC input range. The through-hole DIP-B package is suitable for prototyping or applications where surface mount density is not the primary constraint. Consider thermal dissipation requirements carefully, as the plastic package limits power handling compared to metal-tabbed alternatives in the same series.

Special Purpose Regulators Part Context

This part belongs to the DPA-Switch family, which offers highly integrated solutions for DC-DC converters. The family includes various packages such as surface-mount G packages, through-hole P packages, and thermally efficient TO-263 R packages. The DPA424P specifically utilizes the through-hole configuration, providing a robust option for designs prioritizing mechanical stability or legacy manufacturing processes over miniaturization.

Special Purpose Regulators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.