Specifications
| Attribute | Value |
| Package | Tube |
| Series | TinySwitch® |
| ProductStatus | Not For New Designs |
| OutputIsolation | Isolated |
| InternalSwitch(s) | Yes |
| Voltage-Breakdown | 700V |
| Topology | Flyback |
| DutyCycle | 67% |
| Frequency-Switching | 130kHz |
| Power(Watts) | 6.5 W |
| FaultProtection | Current Limiting, Over Temperature |
| ControlFeatures | EN |
| OperatingTemperature | -40°C ~ 150°C (TJ) |
| Package/Case | 8-DIP (0.300, 7.62mm) |
| SupplierDevicePackage | 8-PDIP |
Overview
Description
TNY255PN is a member of the TinySwitch-II family of integrated circuits designed for cost-effective and energy-efficient switch-mode power supplies. Manufactured by Power Integrations, this IC combines a high-voltage power MOSFET, oscillator, high-voltage switched current source, current limit, and thermal shutdown circuitry onto a single monolithic device. It is commonly used in small power adapters, chargers, and auxiliary supplies in appliances, offering up to 10 watts of power output.
The key features of the TNY255PN include its ability to support wide input voltage ranges, high efficiency with low standby power consumption, and built-in safety mechanisms like over-temperature protection. Its design simplifies the power supply architecture by reducing component count and size, which also helps in minimizing the overall cost.
The TNY255PN comes in a DIP-8 package, making it easy to handle and integrate into various designs. With its robust performance and reliability, it is a popular choice for engineers and designers aiming to develop compact, efficient, and cost-effective power solutions.
The key features of the TNY255PN include its ability to support wide input voltage ranges, high efficiency with low standby power consumption, and built-in safety mechanisms like over-temperature protection. Its design simplifies the power supply architecture by reducing component count and size, which also helps in minimizing the overall cost.
The TNY255PN comes in a DIP-8 package, making it easy to handle and integrate into various designs. With its robust performance and reliability, it is a popular choice for engineers and designers aiming to develop compact, efficient, and cost-effective power solutions.
Equivalent
The TNY255PN is a power conversion IC from the TinySwitch-II series by Power Integrations. Equivalent products can include other TinySwitch or similar series ICs like the TNY253PN, TNY254PN, and TNY256PN, which offer variations in power output and features. Additionally, comparable products from other manufacturers might be ON Semiconductor's NCP1200 series or Infineon's ICE2QR series, depending on the specific application requirements and specifications. Always check datasheets to ensure compatibility.
Features
The TNY255PN is a member of the TinySwitch-II family, designed for low-power offline switcher applications. Key features include:
1. Integrated High-Voltage MOSFET: It incorporates a 700V power MOSFET for efficient power conversion.
2. EcoSmart® Technology: Ensures energy efficiency by reducing power consumption during no-load and light-load conditions.
3. Auto-Restart: Offers protection against overload and open-loop conditions by automatically restarting after a fault.
4. Current Limit Circuitry: Provides inherent short-circuit protection by limiting the current.
5. On/Off Control: Simplifies circuit design by eliminating the need for loop compensation.
6. Low EMI: Reduces electromagnetic interference, aiding in meeting global emission standards.
7. High Reliability: Designed to withstand high operating temperatures and voltage spikes.
8. Under-Voltage Lockout: Prevents damage due to low input voltage conditions.
9. Compact DIP-8 Package: Suitable for space-constrained applications.
10. Flexible Design: Supports a wide range of applications, including adapters, chargers, and standby power supplies.
These features make the TNY255PN ideal for use in energy-efficient power supplies.
1. Integrated High-Voltage MOSFET: It incorporates a 700V power MOSFET for efficient power conversion.
2. EcoSmart® Technology: Ensures energy efficiency by reducing power consumption during no-load and light-load conditions.
3. Auto-Restart: Offers protection against overload and open-loop conditions by automatically restarting after a fault.
4. Current Limit Circuitry: Provides inherent short-circuit protection by limiting the current.
5. On/Off Control: Simplifies circuit design by eliminating the need for loop compensation.
6. Low EMI: Reduces electromagnetic interference, aiding in meeting global emission standards.
7. High Reliability: Designed to withstand high operating temperatures and voltage spikes.
8. Under-Voltage Lockout: Prevents damage due to low input voltage conditions.
9. Compact DIP-8 Package: Suitable for space-constrained applications.
10. Flexible Design: Supports a wide range of applications, including adapters, chargers, and standby power supplies.
These features make the TNY255PN ideal for use in energy-efficient power supplies.
Pinout
The TNY255PN is a member of the TinySwitch family by Power Integrations, designed for use in power supply applications. It comes in an 8-pin DIP (Dual In-line Package). The pin functions are as follows:
1. BYPASS/MULTI-FUNCTION (BP/M): Provides the connection for an external bypass capacitor for the internally generated 5.85 V supply.
2. DRAIN (D): Connected internally to the power MOSFET drain. This pin is the high-voltage power input.
3. DRAIN (D): Another connection to the power MOSFET drain.
4. DRAIN (D): Further connection to the power MOSFET drain.
5. DRAIN (D): Additional connection to the power MOSFET drain.
6. SOURCE (S): This pin is the power MOSFET source connection and also the primary reference point for the circuit.
7. SOURCE (S): Another connection to the power MOSFET source.
8. SOURCE (S): Additional connection to the power MOSFET source.
The TNY255PN aids in the simplification of low-power supply designs, offering high efficiency and reducing component count when compared to traditional linear or discrete switcher solutions.
1. BYPASS/MULTI-FUNCTION (BP/M): Provides the connection for an external bypass capacitor for the internally generated 5.85 V supply.
2. DRAIN (D): Connected internally to the power MOSFET drain. This pin is the high-voltage power input.
3. DRAIN (D): Another connection to the power MOSFET drain.
4. DRAIN (D): Further connection to the power MOSFET drain.
5. DRAIN (D): Additional connection to the power MOSFET drain.
6. SOURCE (S): This pin is the power MOSFET source connection and also the primary reference point for the circuit.
7. SOURCE (S): Another connection to the power MOSFET source.
8. SOURCE (S): Additional connection to the power MOSFET source.
The TNY255PN aids in the simplification of low-power supply designs, offering high efficiency and reducing component count when compared to traditional linear or discrete switcher solutions.
Manufacturer
The TNY255PN is manufactured by Power Integrations, Inc. Power Integrations is a semiconductor company that specializes in the development and production of high-performance electronic components. The company primarily focuses on designing and manufacturing integrated circuits used in power conversion. These products are typically employed in applications such as power supplies, chargers, LED lighting, and motor control across various industries. Power Integrations is known for its innovative solutions that improve energy efficiency and reduce electronic waste, aligning with the global push towards more sustainable energy practices.
Application
The TNY255PN is a highly integrated switch-mode power supply IC used in various applications, primarily for its efficiency and compact design. Common application areas include:
1. Consumer Electronics: Power adapters and chargers for devices like smartphones, tablets, and other portable electronics.
2. Home Appliances: Used in low-power power supplies for products like LED drivers, smart meters, and kitchen appliances.
3. Industrial Equipment: Employed in control systems, sensors, and automation devices requiring efficient power management.
4. Lighting: Utilized in LED lighting products for energy-efficient power conversion.
5. Computing: Powering auxiliary power supplies in PCs and peripheral devices.
Its versatility and compact footprint make it suitable for a variety of low-power applications.
1. Consumer Electronics: Power adapters and chargers for devices like smartphones, tablets, and other portable electronics.
2. Home Appliances: Used in low-power power supplies for products like LED drivers, smart meters, and kitchen appliances.
3. Industrial Equipment: Employed in control systems, sensors, and automation devices requiring efficient power management.
4. Lighting: Utilized in LED lighting products for energy-efficient power conversion.
5. Computing: Powering auxiliary power supplies in PCs and peripheral devices.
Its versatility and compact footprint make it suitable for a variety of low-power applications.
Package
The TNY255PN is a power conversion integrated circuit packaged in a DIP-8 (Dual In-line Package with 8 pins) format. This package type is commonly used for through-hole mounting on printed circuit boards.
