NCP1235AD065R2G

AC DC Converters, Offline Switchers Overview

The NCP1235AD065R2G is a fixed frequency current-mode controller designed for offline flyback converters. It operates at a switching frequency of 65 kHz and supports a maximum duty cycle of 85%. The device features a bootstrap supply voltage range of 8.8 V to 35 V, with a typical operating supply current of 1.4 mA. It provides an output drive capability of up to 500 mA and maintains operation within a temperature range of -40°C to +125°C. Packaged in a compact SOIC-7 surface-mount format, it integrates essential protections including overvoltage lockout and thermal shutdown.

AC DC Converters, Offline Switchers Feature Summary

• Fixed frequency current-mode control architecture
• Integrated bootstrap supply regulation
• Built-in overvoltage lockout protection
• Thermal shutdown capability

AC DC Converters, Offline Switchers Applications

• Offline flyback power supplies
• AC-DC converter designs
• Adapter and charger applications

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix 'D065' against the manufacturer datasheet to confirm the exact switching frequency variant. Ensure the SOIC-7 package outline matches your PCB footprint requirements. Confirm RoHS compliance status through official documentation before finalizing procurement specifications.

AC DC Converters, Offline Switchers Selection Notes

Select this component for cost-sensitive flyback designs requiring fixed frequency operation. Compare rise and fall times against switcher requirements. Evaluate the 65 kHz frequency against EMI constraints relative to higher or lower frequency alternatives in the same series.

AC DC Converters, Offline Switchers Part Context

This part belongs to the NCP123x family of current-mode controllers from onsemi. These devices are engineered for high-performance offline power supplies. The family shares common architectural features while varying in switching frequency and specific protection thresholds to suit diverse application needs.

AC DC Converters, Offline Switchers Replacement Considerations

Check NCP1239ED65R2G for similar 65 kHz performance. Verify pin compatibility and electrical parameters against NCP1234BD65R2G if alternative sourcing is required.