NCP1053XP136

Overview

The NCP1053XP136 is an offline switch featuring a flyback topology with an internal high-voltage MOSFET rated at 700V. It operates as a fixed-frequency PWM controller at 100kHz, supporting up to 40W of output power. The device utilizes a 7-pin PDIP package for through-hole mounting and includes comprehensive fault protection mechanisms such as current limiting, open-loop detection, overload protection, and thermal shutdown.

Feature Summary

• Integrates a high-voltage startup circuit and internal power MOSFET for simplified design
• Provides robust protection against over-current, over-load, and excessive temperature conditions
• Supports isolated flyback converter architectures with fixed frequency operation

Applications

• Offline AC/DC power supplies
• Flyback converter designs
• General purpose power switching applications

Procurement Notes

Verify component authenticity through authorized channels due to discontinued status. Confirm RoHS compliance and packaging details against the official datasheet. Ensure handling procedures account for the specific PDIP package requirements during assembly.

Selection Notes

Select this component for isolated flyback applications requiring integrated high-voltage switching. Consider the 700V breakdown voltage and 100kHz switching frequency when designing transformer parameters. Evaluate thermal management needs given the 150°C junction temperature rating.

Part Context

Part of the NCP105x series from onsemi, designed for cost-effective offline power conversion. The NCP1053 variant specifically targets applications needing integrated protection features within a compact DIP package, simplifying bill of materials compared to discrete solutions.

Replacement Considerations

NCP1053P100G is a documented alternative within the same series offering similar functionality in a compatible package configuration.