TOP256YN

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TOP256YN

IC OFFLINE SW FLYBACK TO220-7C

  • Nhà sản xuất
  • Ông. Phần #TOP256YN
  • Gói TO-220-7C
  • Bảng dữ liệu
  • Có sẵn5859

100% gốc & amp; Mới

24 giờ sẵn sàng để vận chuyển

Bảo hành 365 ngày

RFQ & amp; Nhận thêm Giảm giá

Thông số kỹ thuật

Package Tube
Series TOPSwitch®-HX
ProductStatus Active
OutputIsolation Isolated
InternalSwitch(s) Yes
Voltage-Breakdown 700V
Topology Flyback
DutyCycle 78%
Frequency-Switching 66kHz, 132kHz
Power(Watts) 119 W
FaultProtection Current Limiting, Over Temperature, Over Voltage
OperatingTemperature -40°C ~ 150°C (TJ)
Package/Case TO-220-7 Formed Leads, 6 Leads
SupplierDevicePackage TO-220-7C

Tổng quan

Description

The TOP256YN is an integrated circuit designed for offline switching power supplies, particularly in LED lighting and other power conversion applications. It features a high-voltage power MOSFET and a controller in a single package, which simplifies design and reduces component count.
Key characteristics include a wide input voltage range, typically from 85 to 265 VAC, and various output power capabilities. Its built-in over-voltage, over-current, and thermal protection features enhance safety and reliability. The device operates in a quasi-resonant mode, improving efficiency and reducing electromagnetic interference (EMI).
The TOP256YN is ideal for applications requiring compact and efficient power supplies, such as adapters, chargers, and small appliances. It comes in a DIP-8 package, facilitating easy integration into various designs. Overall, the TOP256YN offers a cost-effective solution for efficient power management in modern electronic devices.

Features

The TOP256YN is a high-voltage integrated circuit designed for offline switch mode power supplies (SMPS). Key features include:
1. Integrated High-Voltage Startup: Eliminates the need for an external startup resistor, reducing component count and board space.

2. PWM Control: Implements pulse width modulation (PWM) for efficient regulation of output voltage.
3. Wide Input Voltage Range: Operates across a broad input voltage range (typically up to 90-265 VAC), suitable for various applications.
4. Frequency Jittering: Reduces electromagnetic interference (EMI) by varying the switching frequency.
5. Over-Temperature Protection: Provides reliable operation by shutting down the device under thermal stress.
6. Short-Circuit Protection: Features auto-restart functionality during overload conditions.
7. Low Standby Power Consumption: Minimizes power loss in idle mode, enhancing energy efficiency.
These features make the TOP256YN suitable for applications in adapters, chargers, and other compact power supply solutions.

Package

The TOP256YN is packaged in a DIP-8 (Dual In-line Package with 8 pins) format.

Pinout

The TOP256YN is a power integrated circuit (IC) designed for off-line switch mode power supplies. It features a total of 8 pins. Here’s a brief overview of the pin functions:
1. Pin 1 (DRAIN): The collector of the internal power switch, connected to the transformer.
2. Pin 2 (SOURCE): The source of the power switch; connected to the ground.
3. Pin 3 (GND): Ground reference for the IC.
4. Pin 4 (SENSE): Used for feedback to regulate output voltage.
5. Pin 5 (VDD): Supply voltage pin where the IC receives its power.
6. Pin 6 (RAMP): Connects to an external capacitor to set the operation's timing.
7. Pin 7 (COMPARATOR): Input for voltage regulation; monitors feedback voltage.
8. Pin 8 (ENABLE): Used to enable/disable the device, facilitating power management.
The TOP256YN primarily serves applications in low-power adapters, chargers, and various consumer electronics.

Manufacturer

The TOP256YN is manufactured by Power Integrations, Inc. Power Integrations is a leading company in the field of high-performance analog and mixed-signal integrated circuits, primarily focusing on power conversion and energy efficiency. They specialize in providing innovative solutions for power supply applications, particularly in the areas of LED lighting, consumer electronics, and renewable energy. The company is known for its expertise in switch-mode power supply (SMPS) technology and has a strong emphasis on reducing energy consumption and improving the environmental impact of electronic devices. Their products are widely used across various industries, making them a key player in the semiconductor market.

Application

The TOP256YN is a high-voltage converter IC primarily used in power supply applications, including LED drivers, adapters, and chargers. Its integrated features support isolated and non-isolated designs, making it suitable for consumer electronics, telecommunications, and industrial equipment. The device enhances efficiency and reliability in low-power applications, providing compact solutions for various power management needs.

Equivalent

The TOP256YN chip, a high-voltage PWM controller, has several equivalent products including the TOP255YN, TOP254YN, and TOP263YN from the same manufacturer, Power Integrations. Other compatible alternatives from different manufacturers may include the TL494, UC3843, and NCP1200, depending on specific application requirements. Always verify specifications to ensure compatibility.

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