TOP257YN,Energy-Efficient Off-Line Switcher,TO-220-7C, 5.5-36V

The TOP257YN - TO-220-7C is a member of the TOPSwitch-HX family by Power Integrations, designed for highly efficient and compact power supplies. It integrates a 700V MOSFET, high-voltage switched current source, oscillator, and control logic into a single IC. With multi-mode operation, the TOP257YN maximizes efficiency across all load conditions, making it an ideal choice for adapter, open-frame, and industrial power supply designs.

This device is capable of delivering up to 85W in adapter designs and 157W in open-frame designs at 230VAC, offering flexibility in a wide range of power applications. The advanced protection features, including thermal shutdown, under-voltage lockout, and overvoltage protection, ensure reliable operation under all conditions. Additionally, the programmable current limit feature allows designers to optimize the peak power limit, making the TOP257YN a versatile choice for high-power applications.

The TO-220-7C package is designed for low thermal impedance, and its compact form factor makes it suitable for space-constrained designs. With integrated frequency jittering, the TOP257YN significantly reduces EMI, reducing the cost of external filters. Whether used in adapters, open-frame power supplies, or other high-power applications, the TOP257YN delivers robust performance with minimal energy loss.

• Frequency Jittering: Reduces EMI, allowing lower filter cost and ensuring regulatory compliance.
• High Power Capability: Supports up to 157W in open-frame designs and 85W in adapter designs at 230VAC, ensuring excellent performance across a wide power range.
• Multi-Mode Operation: Maximizes efficiency at all loads, reducing energy consumption and meeting global energy standards.
• Advanced Protection Features: Integrated with overvoltage, thermal shutdown, and under-voltage lockout to safeguard against fault conditions.
• Compact TO-220-7C Package: Offers low thermal impedance and easy mounting, suitable for applications where space is a constraint.
• Programmable Current Limit: Provides accurate programmable current limit for peak power efficiency.