TOP258PN

Part points

• The TOP258PN is a high-performance integrated power supply chip designed for offline switch mode power supplies. It incorporates a power MOSFET, controller, and other important circuitry into a single chip. The chip offers excellent efficiency, low standby power consumption, and a wide input voltage range. It is commonly used in various applications, including LED lighting, industrial power supplies, and consumer electronics.

• Equivalent

  Some equivalent products of the TOP258PN chip include TNY280PN, TOP247YN, and TNY278PN.

• Features

  The TOP258PN is an integrated offline switcher that includes a fully-integrated power MOSFET, PWM controller, fault protection, frequency jittering, and more. It operates with high efficiency, low standby power, and provides a wide input voltage range. The device offers comprehensive protection features, including thermal shutdown, input undervoltage lockout, and overvoltage protection.

• Pinout

  The TOP258PN is a 7-pin, offline switcher IC. The pin functions are as follows: 1. VCC: Power supply for internal control circuitry. 2. DRAIN: High-voltage power MOSFET drain pin. 3. SOURCE: Power MOSFET source pin. 4. GND: Ground/common reference. 5. FB: Feedback pin for voltage regulation and protection. 6. SV: Start-up and fault protection pin. 7. DRAIN/SENSE: Sense and control pin for IC operation and current sensing.

• Manufacturer

  The manufacturer of the TOP258PN is Power Integrations. Power Integrations is a semiconductor company that specializes in developing integrated circuits and systems for high-power electronic devices. They primarily focus on providing solutions for power supply applications, offering products that maximize energy efficiency, reliability, and performance.

• Application Field

  The TOP258PN is a high-voltage integrated power supply circuit that is often used in flyback power supply designs. It is commonly found in applications such as LED lighting, industrial control systems, home appliances, telecom equipment, and automotive electronics.

• Package

  The TOP258PN chip is available in a package type called PDIP-7. It comes in a form of a rectangular black plastic housing with seven pins. The size of the chip is relatively small, with dimensions of approximately 9.9mm x 6.3mm x 3.3mm.