Power Integrations

TOP257EN  

AC DC Converters, Offline Switches

TOP257EN Description

The TOP257EN is a high-performance, offline switch flyback converter IC designed by Power Integrations. It offers a robust solution for AC-DC conversion applications, with a power output of 157W and a wide range of switching frequencies (66kHz and 132kHz). This versatile component is mounted through-hole, providing a reliable connection in various electronic systems. With a breakdown voltage of 700V and a duty cycle of 78%, the TOP257EN ensures efficient power conversion and reliable operation in demanding environments.

TOP257EN Features

• ECCN: EAR99
• Topology: Flyback
• Mounting Type: Through Hole
• Voltage - Breakdown: 700V
• Product Status: Active
• Internal Switch(s): Yes
• Power (Watts): 157W
• Fault Protection: Current Limiting, Over Temperature, Over Voltage
• Frequency - Switching: 66kHz, 132kHz
• REACH Status: REACH Unaffected
• Manufacturer: Power Integrations
• Duty Cycle: 78%
• HTSUS: 8542.39.0001
• Package: Tube
• Output Isolation: Isolated
• RoHS Status: RoHS Compliant
• Base Product Number: TOP257
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Unique features and advantages of the TOP257EN include its high breakdown voltage, which allows it to handle high-voltage inputs without compromising performance. The internal switch reduces the need for external components, simplifying the design process and reducing costs. The isolated output ensures safety in applications where electrical isolation is crucial.

TOP257EN Applications

The TOP257EN is ideal for a variety of applications where efficient AC-DC conversion is required. Some specific use cases include:

1. Telecommunications Equipment: The high breakdown voltage and reliable operation make it suitable for power supplies in telecommunications equipment, ensuring stable power delivery even in high-voltage environments.
2. Industrial Automation: The TOP257EN's robust design and fault protection features make it an excellent choice for powering industrial automation systems, where reliability and safety are paramount.
3. Medical Devices: The isolated output and over-voltage protection make the TOP257EN suitable for medical devices, where patient safety is a top priority.

Conclusion of TOP257EN

In conclusion, the TOP257EN is a versatile and reliable offline switch flyback converter IC that offers high performance and safety features. Its unique combination of high breakdown voltage, internal switch, and isolated output make it an ideal choice for a wide range of applications, including telecommunications, industrial automation, and medical devices. With its robust design and compliance with RoHS and REACH regulations, the TOP257EN is a dependable solution for AC-DC conversion needs.

TOP257EN Documents

Download datasheets and manufacturer documentation for TOP257EN

PCN Assembly/Origin :

Added Assembly Site 10/Jul/2023      

Datasheets :

TOP252-62      

Reference Design Library :

DER-187: 13V @ 2.69A, 90 ~ 264 VAC in