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TOP246YN
+Lista de MateriaisIC OFFLINE SW FLYBACK TO220-7C
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FabricanteIntegrações de Potência
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Peça do Fabricante #TOP246YN
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Pacote TO-220
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Especificações
| Atributo | Valor |
| 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) | 125 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 |
Visão Geral
Description
Key features of the TOP246YN include its high efficiency and low power consumption, thanks to its integrated EcoSmart technology. It offers protection features like over-voltage, over-current, and over-temperature safeguards, enhancing reliability. The device also supports a wide input voltage range and provides a built-in startup circuit, eliminating the need for external components and reducing the overall parts count and cost.
Its TO-220 package allows for easy heat dissipation, making it ideal for compact designs that require a robust solution. Overall, the TOP246YN is valued for its versatility, efficiency, and reliability in power supply design.
Equivalent
1. TOP247YN - A similar switcher with slight variations in power handling.
2. LNK series from Power Integrations, such as LNK306 or LNK364.
3. ON Semiconductor's NCP series, like NCP1200 or NCP1252, which offer similar functionalities.
When selecting an equivalent, ensure the specifications like output power, switching frequency, and package type match your requirements.
Features
1. Integrated Off-line Switcher: Combines a high-voltage power MOSFET and a controller in one package.
2. Power Efficiency: Features high efficiency with low standby power consumption, ideal for energy-saving designs.
3. Frequency Jittering: Minimizes EMI by spreading the frequency spectrum.
4. Cycle-by-Cycle Current Limiting: Provides protection against overload and short circuit conditions.
5. Thermal Shutdown: Includes an over-temperature protection mechanism.
6. Under-Voltage Lockout: Ensures the IC operates safely by halting operation below a certain voltage level.
7. Auto-Restart: Provides a safe recovery from fault conditions such as open-loop or short circuit.
8. Programmable Current Limit: Allows setting of the current limit through an external resistor.
9. Soft Start: Reduces stress on the power supply components during startup.
10. Wide Range of Input Voltages: Suitable for various AC or DC input conditions.
These features make the TOP246YN particularly suitable for applications such as power adapters, chargers, and standby power supplies.
Pinout
Here are the key functions of the pins:
1. SOURCE (Pin 1): This serves as the ground reference for the controller and the power switch.
2. SOURCE (Pin 2): Another connection to ground, often internally connected to Pin 1.
3. SOURCE (Pin 3): Further supports grounding, ensuring stable operation.
4. SOURCE (Pin 4): Offers additional ground connection similar to Pins 1-3.
5. CONTROL (Pin 5): Used for control circuitry and current limit programming.
6. FREQUENCY (Pin 6): Sets the switching frequency; may not be physically present in TO-220.
7. DRAIN (Pin 7): Connects to the high-voltage power MOSFET drain and is the main input for power.
The TOP246YN is used for efficient energy conversion and regulation in power supply designs, offering high flexibility and integration.
Manufacturer
Application
1. Power Supplies: Used in switched-mode power supplies (SMPS) for consumer electronics like TVs, DVD players, and set-top boxes.
2. Adapters/Chargers: Ideal for AC-DC adapters and battery chargers for portable devices.
3. Industrial Electronics: Employed in industrial automation and control systems.
4. Lighting: Used in LED drivers for energy-efficient lighting solutions.
5. Home Appliances: Found in power circuits of appliances like refrigerators and washing machines.
Its high efficiency, minimal external components, and wide input voltage range make it versatile for these applications.