仕様
| 属性 | 値 |
| Package / Case | Tube |
| Series | TOPSwitch®-GX |
| Part Status | Not For New Designs |
| Output Isolation | Isolated |
| Internal Switch(s) | Yes |
| Voltage - Breakdown | 700V |
| Topology | Flyback |
| Duty Cycle | 66.5% |
| Frequency - Switching | 66kHz ~ 132kHz |
| Power (Watts) | 45 W |
| Fault Protection | Current Limiting, Over Temperature, Over Voltage |
| Control Features | Frequency Control |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Supplier Device Package | TO-220-7C |
概要
Description
The TOP243YN is an integrated circuit from the TOPSwitch-GX family, designed by Power Integrations for use in energy-efficient power supply applications. As a switch-mode power supply controller, it simplifies the design of flyback, forward, boost, and buck-boost converters. This IC incorporates several functions, including an integrated high-voltage MOSFET, PWM controller, and fault protection features, which reduce component count and overall system cost.
Key features of the TOP243YN include a wide input voltage range, high efficiency across the load spectrum, and robust protection mechanisms such as over-temperature, over-current, and over-voltage protections. The design supports multiple power conversion topologies and is suitable for applications ranging from consumer electronics to industrial systems.
The TO-220-3 package of the TOP243YN allows for efficient thermal management, making it suitable for both standalone and heatsink-attached configurations. This IC is favored for its ability to deliver reliable performance in power supplies, offering designers a compact, cost-effective, and versatile solution for various power management needs.
Key features of the TOP243YN include a wide input voltage range, high efficiency across the load spectrum, and robust protection mechanisms such as over-temperature, over-current, and over-voltage protections. The design supports multiple power conversion topologies and is suitable for applications ranging from consumer electronics to industrial systems.
The TO-220-3 package of the TOP243YN allows for efficient thermal management, making it suitable for both standalone and heatsink-attached configurations. This IC is favored for its ability to deliver reliable performance in power supplies, offering designers a compact, cost-effective, and versatile solution for various power management needs.
Equivalent
The TOP243YN is a member of the TOPSwitch-GX family by Power Integrations, used for power conversion applications. Equivalent or similar products include other members of the TOPSwitch-GX series like TOP242YN and TOP244YN depending on specific power requirements. Additionally, you can consider chips from the LinkSwitch or TinySwitch series by Power Integrations for lower power applications. Always check the datasheets to ensure compatibility with your specific application.
Features
The TOP243YN is a member of the TOPSwitch family of integrated offline switcher ICs by Power Integrations. Key features include:
1. Integrated Design: Combines a high-voltage power MOSFET with a PWM control in a single IC, reducing component count and simplifying design.
2. Wide Input Voltage Range: Supports universal AC input (85 - 265 VAC) and can handle a wide range of DC input voltages.
3. High Efficiency: Offers high efficiency operation due to low energy loss components, facilitating designs with minimal heat dissipation requirements.
4. High Switching Frequency: Operates at a fixed frequency, typically around 66 kHz, which helps in reducing the size of the magnetic and filter components.
5. Enhanced Protection Features: Includes built-in features like over-temperature protection, over-voltage protection, and cycle-by-cycle current limiting.
6. Low Standby Power: Designed to minimize power consumption during standby or no-load conditions.
7. Compact Package: Available in a TO-220 package, which is suitable for applications with space constraints.
These features make the TOP243YN suitable for use in power supplies for consumer electronics, industrial applications, and other devices requiring efficient power conversion.
1. Integrated Design: Combines a high-voltage power MOSFET with a PWM control in a single IC, reducing component count and simplifying design.
2. Wide Input Voltage Range: Supports universal AC input (85 - 265 VAC) and can handle a wide range of DC input voltages.
3. High Efficiency: Offers high efficiency operation due to low energy loss components, facilitating designs with minimal heat dissipation requirements.
4. High Switching Frequency: Operates at a fixed frequency, typically around 66 kHz, which helps in reducing the size of the magnetic and filter components.
5. Enhanced Protection Features: Includes built-in features like over-temperature protection, over-voltage protection, and cycle-by-cycle current limiting.
6. Low Standby Power: Designed to minimize power consumption during standby or no-load conditions.
7. Compact Package: Available in a TO-220 package, which is suitable for applications with space constraints.
These features make the TOP243YN suitable for use in power supplies for consumer electronics, industrial applications, and other devices requiring efficient power conversion.
Pinout
The TOP243YN is a member of the TOPSwitch-GX family, which is used for efficient and compact switch-mode power supply designs. This device comes in a TO-220 package and typically has 3 pins. Here’s a brief overview of its pin functions:
1. Drain (D): This pin is connected to the internal high-voltage power MOSFET drain. It is used for switching the input power to the transformer.
2. Source (S): This pin serves as the return path for the primary current and is the control circuit common. It is also the reference pin for the control circuit.
3. Control (C): This pin is used for controlling the operation of the internal high-voltage MOSFET. It provides the feedback input for regulating the output voltage and current. It can also be used for implementing various protection functions.
These pins are critical for the functioning of the device, allowing it to regulate power efficiently in various applications such as power adapters and power supplies for consumer electronics.
1. Drain (D): This pin is connected to the internal high-voltage power MOSFET drain. It is used for switching the input power to the transformer.
2. Source (S): This pin serves as the return path for the primary current and is the control circuit common. It is also the reference pin for the control circuit.
3. Control (C): This pin is used for controlling the operation of the internal high-voltage MOSFET. It provides the feedback input for regulating the output voltage and current. It can also be used for implementing various protection functions.
These pins are critical for the functioning of the device, allowing it to regulate power efficiently in various applications such as power adapters and power supplies for consumer electronics.
Manufacturer
The TOP243YN is manufactured by Power Integrations, Inc. Power Integrations is a semiconductor company that specializes in the design and development of high-performance electronic components for power conversion. The company is known for its innovative solutions that enhance energy efficiency in a wide range of electronic devices, including consumer electronics, appliances, industrial applications, and more. Power Integrations focuses on integrating high-voltage analog and mixed-signal integrated circuits, enabling compact and efficient power supply designs.
Application
The TOP243YN is a member of the TOPSwitch-II family of power conversion integrated circuits. It is primarily used in applications requiring efficient AC to DC power conversion. Typical applications include:
1. AC-DC Power Supplies: Used in adapters, battery chargers, and open-frame power supplies.
2. Consumer Electronics: Employed in TVs, DVD players, and set-top boxes for efficient power management.
3. Home Appliances: Found in kitchen appliances and other household devices for power supply functions.
4. Industrial Systems: Utilized in low-power industrial equipment requiring reliable power conversion.
5. Standby and Auxiliary Power Supplies: Used for maintaining power efficiency in standby modes.
These applications benefit from the device's high efficiency, reduced component count, and compact design.
1. AC-DC Power Supplies: Used in adapters, battery chargers, and open-frame power supplies.
2. Consumer Electronics: Employed in TVs, DVD players, and set-top boxes for efficient power management.
3. Home Appliances: Found in kitchen appliances and other household devices for power supply functions.
4. Industrial Systems: Utilized in low-power industrial equipment requiring reliable power conversion.
5. Standby and Auxiliary Power Supplies: Used for maintaining power efficiency in standby modes.
These applications benefit from the device's high efficiency, reduced component count, and compact design.
Package
The TOP243YN is a Power Integrations integrated circuit from the TOPSwitch-GX series and typically comes in a TO-220 package. This package type is suitable for through-hole mounting and is commonly used for power management applications.
