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TNY274PN
+BOMIC OFFLINE SWITCH FLYBACK 8DIP
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ManufacturerPower Integrations
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Mfr. Part #TNY274PN
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Datasheet TNY274PN DataSheet
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Package DIP-8
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In Stock5393
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Specifications
| Attribute | Value |
| 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) | 11 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 |
Overview
Description
Key features of the TNY274PN include:
1. Integrated Design: Combines a high-voltage power MOSFET, oscillator, high-voltage switched current source, current limit, and thermal shutdown circuitry within a single package.
2. Efficient Performance: Provides up to 75% energy efficiency, reducing heat generation and improving reliability.
3. Low Standby Power: Supports designs with low standby power consumption, which is critical for meeting energy efficiency standards.
4. Enhanced Protection: Features over-temperature protection, output short-circuit protection, and auto-restart for fault conditions.
5. Versatile Applications: Suitable for power supplies in the range of 10W, adaptable for use in a wide range of electronic devices.
Overall, the TNY274PN is valued for its compact footprint, robust protection features, and efficiency in small power applications.
Equivalent
1. Fairchild/ON Semiconductor's FSQ-series.
2. NXP's TEA152x family.
3. STMicroelectronics' VIPer-series.
Ensure compatibility in terms of input voltage range, output power, and package type when selecting an equivalent. Always compare the datasheets to verify specifications and performance.
Features
1. Integrated Functions: It combines a high-voltage power MOSFET, oscillator, high-voltage switching current source, current limit, and thermal shutdown circuitry, reducing the need for external components.
2. Design Flexibility: Supports flyback, forward, and other converter topologies, making it versatile for various applications.
3. EcoSmart Technology: Features energy-efficient operation with very low power consumption during no-load and light-load conditions, meeting stringent energy standards.
4. Auto-Restart Protection: Provides safe operation by automatically reducing output power during overload, short circuit, or open-loop conditions.
5. Programmable Current Limit: Allows designers to optimize power supply designs for specific applications by adjusting the current limit.
6. High-Voltage Startup: Capable of starting up directly from the rectified DC voltage without any external bias winding.
7. Thermal Shutdown: Protects the IC from damage due to excessive temperature, enhancing reliability.
These features make the TNY274PN suitable for compact, efficient, and cost-effective power supply designs in consumer electronics and industrial applications.
Pinout
1. EN/UV (Enable/Undervoltage): This pin serves as both an enable input and an undervoltage lockout sensor.
2. BP (Bypass): Connects to an external capacitor to set the internal current limit and provide a stable reference voltage.
3. D (Drain): This pin connects to the primary winding of the transformer and handles the switching of the internal MOSFET.
4. S (Source): Ground reference for the device, connected internally to the control circuit.
5. BP/M (Bypass/M): Provides the connection for a bypass capacitor to reduce noise and set the current limit.
6. F (Feedback): Monitors the output voltage and adjusts the duty cycle for regulation.
7. R (Remote ON/OFF): Allows remote on/off control of the device.
8. NC (No Connection): This pin is not internally connected and is used for mechanical support only.
This IC is primarily used for efficient power conversion applications, allowing for reduced system cost and increased reliability.
Manufacturer
Application
1. AC-DC Power Supplies: Ideal for low-power devices such as chargers, adapters, and auxiliary supplies.
2. Consumer Electronics: Utilized in powering small appliances, set-top boxes, and LED drivers.
3. Industrial Controls: Suitable for powering control circuitry in industrial equipment.
4. Household Appliances: Used in small appliances like coffee machines and air purifiers.
5. Standby Power Systems: Helps in reducing power consumption in standby modes for various devices.
Its design allows for high efficiency and low standby power, making it suitable for energy-conscious applications.