DPA425G-TL

Special Purpose Regulators Overview

The DPA425G-TL is a highly integrated isolated DC-DC converter IC from the DPA-Switch family by Power Integrations. It operates with a wide input voltage range of 16 V to 75 V DC and delivers up to 25.5 W of output power. The device integrates a 220 V high-frequency MOSFET, PWM control, and comprehensive protection circuits into a single package. Key electrical parameters include an output voltage of 16 V and an output current of 4.3 mA for Channel 1. It supports pin-selectable switching frequencies of 300 kHz or 400 kHz and functions within a temperature range of -40 °C to +150 °C.

Special Purpose Regulators Feature Summary

• Integrates a 220 V high-frequency MOSFET with all control and fault protection circuitry in a single monolithic IC.
• Features built-in auto-restart protection for output overload and open-loop conditions without external sensing components.
• Includes line undervoltage detection capabilities that meet ETSI standards for telecom applications.

Special Purpose Regulators Applications

• PoE-powered devices
• Telecom central office equipment
• VoIP and digital feature phones

Special Purpose Regulators Procurement Notes

Verify the specific suffix 'G' against official manufacturer documentation to confirm package type and availability, as standard listings often reference 'GN' or 'R' variants. Confirm RoHS compliance status directly with the supplier. Ensure the selected variant matches the required thermal management solution for the target application environment.

Special Purpose Regulators Selection Notes

Select this component for designs requiring a compact, low-component-count isolated DC-DC solution. The wide input voltage range suits distributed power architectures. Consider the thermal performance of the G package relative to the expected load. Verify compatibility with the desired switching frequency setting via pin selection.

Special Purpose Regulators Part Context

This part belongs to the DPA425 series within the DPA-Switch family. These ICs are designed to eliminate up to 50 external components, reducing board space and cost. The family offers various package options, including surface mount and through-hole configurations, to accommodate different power levels and design constraints.

Special Purpose Regulators Replacement Considerations

Check for direct substitutes such as DPA424GN-TL or DPA426R-TL based on specific power and package requirements. Verify pinout compatibility and electrical parameter overlaps before substitution.