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IC OFFLINE SWITCH FLYBACK 8DIP
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제조업체폴 잉터
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제조업체 부품 #TNY278PN
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데이터시트 TNY278PN DataSheet
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패키지 DIP-8
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재고3810
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사양
| 속성 | 가치 |
| Package / Case | Tube |
| Series | TinySwitch®-III |
| Part Status | Active |
| Output Isolation | Isolated |
| Internal Switch(s) | Yes |
| Voltage - Breakdown | 700V |
| Topology | Flyback |
| Duty Cycle | 65% |
| Frequency - Switching | 132kHz |
| Power (Watts) | 28 W |
| Fault Protection | Current Limiting, Open Loop, Over Temperature, Over Voltage, Short Circuit |
| Control Features | EN |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Supplier Device Package | 8-PDIP-C |
개요
Description
Key features of the TNY278PN include:
1. Efficiency: It offers high efficiency across a wide load range, which is essential for minimizing power loss and heat generation.
2. Simplicity: The integration of control and feedback functions within the IC allows for fewer external components, simplifying design and reducing costs.
3. Protection: Includes built-in protection features like over-temperature and over-voltage protection to enhance reliability and longevity.
4. Applications: Commonly used in consumer electronics, chargers, adapters, and other devices requiring compact and efficient power conversion solutions.
The TNY278PN, with its compact DIP-8 package, is particularly suited for applications where space and cost efficiency are priorities.
Equivalent
Features
1. Integrated Controller and MOSFET: Combines a controller and high-voltage MOSFET into a single package, simplifying design and reducing component count.
2. EcoSmart Technology: Offers energy-efficient operation with very low standby power consumption.
3. Cycle-by-Cycle Current Limit: Provides robust protection by limiting current on a cycle-by-cycle basis, enhancing reliability.
4. Auto-Restart: Automatically restarts after fault conditions like overload or short circuit, ensuring safety and protection.
5. Thermal Shutdown: Includes a built-in thermal shutdown feature to prevent overheating.
6. Enhanced Performance: Delivers better transient response and improved efficiency compared to older designs.
7. Primary-Side Regulation: Enables primary-side control, eliminating the need for an optocoupler for feedback.
8. Wide Input Voltage Range: Supports a broad range of input voltages, enhancing versatility and application potential.
Overall, it provides a compact, efficient, and cost-effective solution for power supply designs.
Pinout
The TNY278PN comes in an 8-pin DIP (Dual In-line Package). The pin functions are as follows:
1. BP/M (Bypass/Multi-Function): Connects to an external bypass capacitor to stabilize the internal supply voltage and can also be used for line undervoltage, overvoltage, and external current limit settings.
2. D (Drain): This is the high-voltage power MOSFET drain connection, which is connected to the primary winding of the transformer.
3. S (Source): This is the power MOSFET source connection, which acts as a return path for the power switch’s current.
4. EN/UV (Enable/Undervoltage): This pin is used to enable or disable the power MOSFET based on the input conditions. It can also be used to implement line undervoltage protection.
Multiple pins may be tied together for specific functional configurations, such as increased power capability or enhanced thermal performance.
Manufacturer
Application
1. AC-DC Power Supplies: Used in chargers, adapters, and auxiliary power supplies for consumer electronics.
2. Standby Power Supplies: Ideal for TVs, set-top boxes, and other devices in standby mode due to its low standby power consumption.
3. Industrial Equipment: Used in power management for various industrial devices.
4. Home Appliances: Suitable for powering small household appliances.
Its features, including high efficiency, reduced component count, and built-in protection mechanisms, make it suitable for space-constrained and cost-effective designs.