Specifications
| Attribute | Value |
| Package / Case | Tube |
| Series | TOPSwitch®-HX |
| Part Status | Active |
| Output Isolation | Isolated |
| Internal Switch(s) | Yes |
| Voltage - Breakdown | 700V |
| Topology | Flyback |
| Duty Cycle | 78% |
| Frequency - Switching | 66kHz, 132kHz |
| Power (Watts) | 81 W |
| Fault Protection | Current Limiting, Over Temperature, Over Voltage |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Supplier Device Package | TO-220-7C |
Overview
Description
The TOP255YN is part of the TOPSwitch-JX series by Power Integrations, designed for cost-effective, high-efficiency power supply applications. These integrated circuits are used in switch-mode power supplies and facilitate energy-efficient conversion. The TOP255YN combines a high-voltage power MOSFET with a controller in a single package, simplifying design and reducing component count.
Key features include multi-mode operation, which optimizes performance across various load conditions, and a built-in start-up circuit that reduces the need for external components. The device offers enhanced safety and reliability features, such as over-temperature and over-current protection, as well as frequency jittering to minimize electromagnetic interference (EMI).
Ideal for compact designs, the TOP255YN supports power supplies for consumer electronics, industrial applications, and other devices requiring efficient power management. Its compact TO-220 package allows for effective heat dissipation, contributing to overall system efficiency and longevity. With its integrated approach, the TOP255YN helps designers create robust, energy-efficient power solutions.
Key features include multi-mode operation, which optimizes performance across various load conditions, and a built-in start-up circuit that reduces the need for external components. The device offers enhanced safety and reliability features, such as over-temperature and over-current protection, as well as frequency jittering to minimize electromagnetic interference (EMI).
Ideal for compact designs, the TOP255YN supports power supplies for consumer electronics, industrial applications, and other devices requiring efficient power management. Its compact TO-220 package allows for effective heat dissipation, contributing to overall system efficiency and longevity. With its integrated approach, the TOP255YN helps designers create robust, energy-efficient power solutions.
Equivalent
The TOP255YN is a member of the TOPSwitch-GX family of integrated off-line switcher ICs by Power Integrations. Equivalent products or alternatives would include other models in the TOPSwitch-GX series, like TOP256YN or TOP257YN, depending on the specific application requirements. Additionally, you might consider other integrated switcher ICs from Power Integrations or similar products from manufacturers like ON Semiconductor or STMicroelectronics, ensuring they match the electrical and thermal specifications needed for your application.
Features
The TOP255YN is a member of the TOPSwitch-II family of power conversion ICs, designed for use in power supply applications. Key features include:
1. Integration: Combines high voltage power MOSFET and control circuitry, reducing component count and increasing reliability.
2. Efficiency: Offers high power efficiency with low standby power consumption, meeting energy efficiency standards.
3. Performance: Capable of delivering up to 30W with a wide input voltage range (85 to 265 VAC), suitable for global power applications.
4. Protection Features: Includes auto-restart for short-circuit and overload protection, over-temperature shutdown, and under-voltage lockout.
5. Flexibility: Supports various topologies like flyback, buck, and forward converters, providing design flexibility.
6. Programmability: Features programmable current limit for optimized power delivery.
7. Size and Cost Efficiency: Reduces the need for external components, lowering overall system cost and size.
8. Compliance: Designed to meet international safety and electromagnetic interference standards.
These features make the TOP255YN suitable for use in a wide range of consumer electronics, industrial, and power supply applications.
1. Integration: Combines high voltage power MOSFET and control circuitry, reducing component count and increasing reliability.
2. Efficiency: Offers high power efficiency with low standby power consumption, meeting energy efficiency standards.
3. Performance: Capable of delivering up to 30W with a wide input voltage range (85 to 265 VAC), suitable for global power applications.
4. Protection Features: Includes auto-restart for short-circuit and overload protection, over-temperature shutdown, and under-voltage lockout.
5. Flexibility: Supports various topologies like flyback, buck, and forward converters, providing design flexibility.
6. Programmability: Features programmable current limit for optimized power delivery.
7. Size and Cost Efficiency: Reduces the need for external components, lowering overall system cost and size.
8. Compliance: Designed to meet international safety and electromagnetic interference standards.
These features make the TOP255YN suitable for use in a wide range of consumer electronics, industrial, and power supply applications.
Pinout
The TOP255YN is a part of the TOPSwitch-GX family from Power Integrations, designed for off-line switcher applications. It is typically used in power supplies to efficiently convert high-voltage DC to low-voltage DC. The device is encapsulated in a TO-220 package, which typically features three pins, although the number can vary slightly depending on the specific model variant:
1. Source (S): This pin is the power ground connection and is typically connected to the return path of the power circuit.
2. Drain (D): This pin connects to the high-voltage input, and it is where the switching action occurs to regulate power.
3. Control (C): This pin is used to control the operation of the switch, typically interfacing with feedback circuits to regulate output voltage or current.
The device integrates a high-voltage power MOSFET and a control/logic circuit to simplify design and enhance performance.
1. Source (S): This pin is the power ground connection and is typically connected to the return path of the power circuit.
2. Drain (D): This pin connects to the high-voltage input, and it is where the switching action occurs to regulate power.
3. Control (C): This pin is used to control the operation of the switch, typically interfacing with feedback circuits to regulate output voltage or current.
The device integrates a high-voltage power MOSFET and a control/logic circuit to simplify design and enhance performance.
Manufacturer
The TOP255YN is manufactured by Power Integrations, Inc. Power Integrations is a semiconductor company that specializes in developing high-performance electronic components used in high-voltage power conversion systems. The company is well-known for its innovative solutions in power supply design, offering products that are crucial for efficient energy conversion, management, and control across a wide range of applications. These applications typically include consumer electronics, computers, communication devices, and industrial systems.
Power Integrations focuses on creating technologies that enable smaller, more energy-efficient power converters, which help in reducing the overall environmental impact of electronic devices. Their products are often characterized by their ability to minimize energy loss and reduce the size and weight of power converters, contributing to more sustainable and eco-friendly electronic designs.
Overall, Power Integrations is recognized for its contributions to reducing the energy consumption of electronic devices and its role in advancing power conversion technology.
Power Integrations focuses on creating technologies that enable smaller, more energy-efficient power converters, which help in reducing the overall environmental impact of electronic devices. Their products are often characterized by their ability to minimize energy loss and reduce the size and weight of power converters, contributing to more sustainable and eco-friendly electronic designs.
Overall, Power Integrations is recognized for its contributions to reducing the energy consumption of electronic devices and its role in advancing power conversion technology.
Application
The TOP255YN is a member of the TOPSwitch series of integrated switcher ICs designed for off-line switch mode power supplies. Application areas include:
1. AC-DC Power Supplies: Used in power adapters, chargers, and external power supplies for consumer electronics.
2. Industrial Power Supplies: Employed in industrial controls and instrumentation due to its robust performance.
3. LED Drivers: Suitable for driving LEDs in lighting applications owing to its high efficiency.
4. Household Appliances: Applied in small appliances requiring efficient and compact power solutions.
5. Standby Power Supplies: Used in standby or auxiliary power supplies to maintain low power consumption.
Overall, its high efficiency, reliability, and integration make it suitable for a wide range of power supply applications.
1. AC-DC Power Supplies: Used in power adapters, chargers, and external power supplies for consumer electronics.
2. Industrial Power Supplies: Employed in industrial controls and instrumentation due to its robust performance.
3. LED Drivers: Suitable for driving LEDs in lighting applications owing to its high efficiency.
4. Household Appliances: Applied in small appliances requiring efficient and compact power solutions.
5. Standby Power Supplies: Used in standby or auxiliary power supplies to maintain low power consumption.
Overall, its high efficiency, reliability, and integration make it suitable for a wide range of power supply applications.
Package
The TOP255YN is a Power Integrations IC that comes in a TO-220-7C package, which is a type of through-hole mounting package with 7 pins designed for power management applications.
