MC34025DW

AC DC Converters, Offline Switchers Overview

The MC34025DW is a high-speed double-ended PWM controller manufactured by onsemi. It operates within an input voltage range of 8.8 V to 30 V, with a nominal supply of 15 V. The device supports current mode control and utilizes pulse width modulation techniques. It is housed in a 16-pin DIP package (DIP16) and functions as a switching controller for dual output voltage applications. The component is rated for a maximum operating temperature of 70 °C and can deliver up to 2 A of output current.

AC DC Converters, Offline Switchers Feature Summary

• Supports current mode control architecture
• Features high-speed double-ended PWM operation
• Capable of dual output voltage switching control

AC DC Converters, Offline Switchers Applications

• Dual output power supply designs
• Offline AC-DC switching controllers
• Regulator circuits requiring current mode feedback

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific datasheet revision and RoHS compliance status prior to procurement, as historical documentation indicates potential non-compliance variants. Confirm the package type matches the required DIP16 form factor. Ensure the supplier provides official traceability documents for the onsemi manufacturing origin. Cross-reference the part number suffix to confirm it corresponds to the standard DW variant without additional functional modifications.

AC DC Converters, Offline Switchers Selection Notes

Select this component for applications requiring precise current mode regulation in double-ended topologies. Consider the 70 °C maximum junction temperature limit when designing thermal management solutions. Evaluate the 8.8 V minimum input threshold against the system's brown-out conditions. Compare performance requirements against single-ended alternatives like the MC34023 if only one output channel is necessary.

AC DC Converters, Offline Switchers Part Context

This part belongs to the MC34025 series of high-speed PWM controllers from onsemi. It is functionally related to the MC34023 single-ended variant and shares design principles with other industry-standard controllers such as the UC1823. The DW designation specifically identifies the plastic dual in-line package configuration used in through-hole mounting applications.

AC DC Converters, Offline Switchers Replacement Considerations

Public confirmed substitutes include the MC34025DWG and MC34025DWR2G. Other compatible devices identified in public records are the UC1823 and UCC3829-1.