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TNY278GN
+BOMIC OFFLINE SWITCH FLYBACK 8SMD
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Nhà sản xuấtPower Integrations
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Ông. Phần #TNY278GN
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Bảng dữ liệu TNY278GN DataSheet
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Gói SMD-8
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Có sẵn4919
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Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package | Tube |
| Series | TinySwitch®-III |
| ProductStatus | Discontinued at Digi-Key |
| OutputIsolation | Isolated |
| InternalSwitch(s) | Yes |
| Voltage-Breakdown | 700V |
| Topology | Flyback |
| DutyCycle | 65% |
| Frequency-Switching | 132kHz |
| Power(Watts) | 28 W |
| FaultProtection | Current Limiting, Open Loop, Over Temperature, Over Voltage, Short Circuit |
| ControlFeatures | EN |
| OperatingTemperature | -40°C ~ 150°C (TJ) |
| Package/Case | 8-SMD (7 Leads), Gull Wing |
| SupplierDevicePackage | SMD-8C |
Tổng quan
Description
Key features of the TNY278GN include its high efficiency, due to variable switching frequency and frequency jittering, which help minimize electromagnetic interference (EMI). It also offers robust protection features like output short circuit, over-temperature, and over-voltage protection, enhancing the reliability of the applications it is used in.
The TNY278GN is suitable for use in a wide range of applications, such as chargers, adapters, and consumer electronics, where compact size and high energy efficiency are priorities. Its design supports both flyback and buck-boost configurations, allowing for versatile power supply solutions.
Equivalent
1. LinkSwitch series ICs by Power Integrations.
2. LNK6XX series by Power Integrations.
3. TOPSwitch series by Power Integrations.
4. Fairchild's (now ON Semiconductor) FSQ series.
Always verify specific requirements and compatibility before selecting an alternate part.
Features
1. Energy Efficiency: It operates at high efficiency across a wide load range, reducing energy consumption in standby and active modes.
2. Integrated Design: The device combines a 700V power MOSFET, oscillator, high-voltage switch, current limit, and thermal shutdown circuitry in a single package.
3. Wide Input Voltage Range: It supports universal input ranges, making it suitable for global applications.
4. Primary-Side Regulation: This feature eliminates the need for an optocoupler, simplifying design and reducing cost.
5. Current Mode Control: Offers enhanced transient response and better line/load regulation.
6. Auto-Restart Protection: Protects against output short circuits and overloads by reducing power delivery in fault conditions.
7. EcoSmart Technology: Ensures low standby power consumption, meeting stringent global efficiency standards.
8. Package: Available in a small 8-pin DIP or SMD package, aiding in compact PCB design.
The TNY278GN is ideal for use in chargers, adapters, and other low-power applications requiring reliability and efficiency.
Pinout
1. DRAIN (Pin 1, 2, 3): High voltage power MOSFET drain connection. This pin is connected to the primary winding of the transformer.
2. BYPASS/MULTI-FUNCTION (Pin 4): This pin is used for connecting an external bypass capacitor for the internally regulated 5.85 V supply. It also provides a connection for line undervoltage and overvoltage programming and remote on/off control.
3. FEEDBACK (Pin 5): This pin is used for sensing the output voltage through an optocoupler to regulate the power supply output.
4. SOURCE (Pin 6, 7, 8): This pin is the return path for the primary current and is connected to the primary side ground.
The TNY278GN is designed for efficiency and low standby power, ideal for use in low power adapters, chargers, and other small power supply applications.