Overview
The TNY279PN is an energy-efficient, off-line switcher integrated circuit (IC) manufactured by Power Integrations. It belongs to the TinySwitch-III family, which combines a high-voltage power MOSFET switch with a power supply controller in a single device. This IC is designed to provide a flexible and cost-effective solution for AC/DC power conversion, making it suitable for a wide range of industrial, commercial, and residential applications.
Key Specifications
| Attribute | Value |
|---|---|
| Manufacturer | Power Integrations, Inc. |
| Package/Case | DIP-7 (Through Hole) |
| Switching Frequency | 132 kHz |
| Supply Current | 510 µA |
| Operating Temperature Range | -40°C to +150°C |
| Output Power | 25 W (85-265 VAC), 32 W (230 VAC) |
| Voltage Input Range | 85 - 265 VAC |
| Efficiency | Up to 90% |
| No-Load Power Consumption | < 150 mW at 265 VAC (without bias winding), < 50 mW with bias winding |
Key Features
- High-Voltage Power MOSFET and Controller: Combines a 700 V power MOSFET, oscillator, high voltage switched current source, current limit (user selectable), and thermal shutdown circuitry in one device.
- Energy Efficiency: Meets all global energy efficiency regulations with low no-load power consumption (<150 mW at 265 VAC without bias winding, <50 mW with bias winding).
- Enhanced Safety and Reliability: Features accurate hysteretic thermal shutdown protection, improved auto-restart, output overvoltage shutdown with optional Zener, and line undervoltage detect threshold set using a single optional resistor.
- Low EMI: SOURCE pins are electrically quiet, and frequency jittering reduces EMI filter costs.
- High Bandwidth and Fast Turn-On: Provides fast turn-on with no overshoot and excellent transient load response.
- Extended Creepage and Single-Sided PCB Layout: Enhances field reliability and enables single-sided printed circuit board layout.
Applications
- Chargers and Adapters: For cell phones, cordless phones, PDAs, digital cameras, MP3/portable audio devices.
- Industrial and Commercial Power Supplies: Suitable for various industrial and commercial applications requiring efficient and reliable power conversion.
- Residential Power Supplies: Used in residential applications such as power adapters and small appliances).
Q & A
- What is the TNY279PN?
The TNY279PN is an energy-efficient, off-line switcher IC from the TinySwitch-III family by Power Integrations.
- What is the input voltage range of the TNY279PN?
The input voltage range is 85 - 265 VAC.
- What is the maximum output power of the TNY279PN?
The maximum output power is 25 W (85-265 VAC) and 32 W (230 VAC).
- What are the key safety features of the TNY279PN?
Key safety features include accurate hysteretic thermal shutdown protection, improved auto-restart, output overvoltage shutdown with optional Zener, and line undervoltage detect threshold set using a single optional resistor.
- How efficient is the TNY279PN?
The TNY279PN has an efficiency of up to 90% and meets all global energy efficiency regulations.
- What is the no-load power consumption of the TNY279PN?
The no-load power consumption is less than 150 mW at 265 VAC without bias winding and less than 50 mW with bias winding.
- What are the typical applications of the TNY279PN?
Typical applications include chargers and adapters for portable devices, industrial and commercial power supplies, and residential power supplies.
- What is the operating temperature range of the TNY279PN?
The operating temperature range is -40°C to +150°C.
- What is the switching frequency of the TNY279PN?
The switching frequency is 132 kHz.
- Is the TNY279PN RoHS compliant?
Yes, the TNY279PN is lead-free and RoHS compliant.
