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TNY285DG
+BOMIC OFFLINE SWITCH FLYBACK 8SO
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ManufacturerPower Integrations
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Mfr. Part #TNY285DG
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Datasheet TNY285DG DataSheet
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In Stock6033
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Specifications
| Attribute | Value |
| Series | TinySwitch®-4 |
| PartStatus | Discontinued at DigiKey |
| BaseProductNumber | TNY285 |
| OutputIsolation | Isolated |
| InternalSwitch(s) | Yes |
| Voltage-Breakdown | 725V |
| Topology | Flyback |
| DutyCycle | 67% |
| Frequency-Switching | 124kHz ~ 140kHz |
| FaultProtection | Current Limiting, Open Loop, Over Temperature, Over Voltage, Short Circuit |
| ControlFeatures | EN |
| OperatingTemperature | -40°C ~ 150°C (TJ) |
| Package | 8-SOIC (0.154", 3.90mm Width), 7 Leads |
| SupplierDevicePackage | SO-8C |
| MountingType | Surface Mount |
| Packaging | Tube |
| Power(Watts) | 8.5 W |
Overview
Description
Key features include built-in over-temperature protection, over-voltage protection, and under-voltage lockout, ensuring reliable operation. The device utilizes a proprietary technology that minimizes component count and board space, which is particularly beneficial in designs for consumer electronics, LED drivers, and industrial equipment.
The TNY285DG offers excellent efficiency, often exceeding 80%, and operates in a high-frequency range that reduces the size of external components like transformers and filters. Its ease of use and integration make it a popular choice for designers looking to implement compact, energy-efficient power supplies in their products.
Equivalent
Features
1. Wide Input Voltage Range: It operates from 85V to 265V AC, making it suitable for universal input applications.
2. Built-in High-Voltage Start-Up Circuit: This eliminates the need for an external start-up resistor, enhancing efficiency.
3. Integrated Power MOSFET: It includes a 7W, 132 kHz power MOSFET, reducing component count and PCB space.
4. Low Standby Power: Designed for energy efficiency, it helps meet energy-saving regulations.
5. Over-Temperature Protection: It features built-in thermal shutdown to protect against excessive heat.
6. Short-Circuit Protection: Provides reliability by preventing damage during fault conditions.
7. Adjustable Output Voltage: Allows customization for various applications.
8. Compact Footprint: Ideal for space-constrained designs.
Overall, the TNY285DG is suitable for adapters, chargers, and auxiliary power supplies in consumer electronics.
Pinout
1. Pin 1 (DRAIN): Connects to the drain of the external MOSFET for switching.
2. Pin 2 (SOURCE): Connects to the source of the MOSFET, also used for providing ground reference.
3. Pin 3 (GND): Ground reference for the IC.
4. Pin 4 (VCC): Power supply input for the IC.
5. Pin 5 (CS): Current sense pin for feedback to regulate output power.
6. Pin 6 (COMP): Compensation pin for feedback loop stability.
7. Pin 7 (RAMP): Connects to an external capacitor for frequency modulation.
8. Pin 8 (VREF): Provides a reference voltage for external components.
This IC is commonly used in low-power switch-mode power supplies, offering high efficiency and compact design.
Manufacturer
Application
1. Consumer Electronics: Power adapters for devices like chargers and small appliances.
2. Industrial Equipment: Power supplies for sensors and control systems.
3. LED Drivers: Efficient power supply for LED lighting applications.
4. Home Automation: Powering smart home devices and IoT equipment.
5. Telecommunications: Power supplies for networking devices and communication equipment.
Its features include low standby power consumption and high efficiency, making it suitable for energy-sensitive applications.