Overview
The TNY276PN is an AC/DC switching converter from Power Integrations, part of the TinySwitch-III series. This component is designed for high efficiency and flexibility, making it suitable for a wide range of off-line power supply applications. It incorporates a 700 V power MOSFET, oscillator, high voltage switched current source, and current limit (user selectable), along with thermal shutdown protection. The TNY276PN is known for its energy efficiency, meeting all global energy efficiency regulations, and its enhanced safety and reliability features.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Power Integrations |
| Part Number | TNY276PN |
| Input Voltage Range | 85 VAC to 265 VAC |
| Output Power | 15 W (peak/open), 10 W (adapter) at 230V ±15%, 7 W (adapter) at 85-265V |
| Topology | Flyback |
| Switching Frequency | 140 kHz |
| Operating Temperature Range | -40°C to +150°C |
| Storage Temperature Range | -65°C to +150°C |
| Package Style | PDIP-7 |
| Mounting Method | Through Hole |
| Isolation | Isolated |
| Breakdown Voltage-Max | 700 V |
| No-Load Power Consumption | 150 mW at 265 VAC (without bias winding), 50 mW with bias winding |
Key Features
- EcoSmart™ technology for extremely energy efficiency and compliance with global energy efficiency regulations.
- Enhanced safety and reliability features, including accurate hysteretic thermal shutdown protection with automatic recovery.
- Simple ON/OFF control with no loop compensation needed.
- Self-biased: no bias winding or bias components required.
- Frequency jittering reduces EMI filter costs.
- Pin-out simplifies heat sinking to the PCB, with SOURCE pins electrically quiet for low EMI.
- Tight I2f parameter tolerance reduces system cost.
- Output overvoltage shutdown with optional zener.
- Improved auto-restart delivers 3% of maximum power in short-circuit and open loop fault conditions.
Applications
The TNY276PN is suitable for various off-line power supply applications, including:
- Adapters and chargers.
- Set-top boxes and other consumer electronics.
- Industrial control systems and automation equipment.
- Medical devices requiring high efficiency and reliability.
- General-purpose off-line power supplies where energy efficiency and safety are critical.
Q & A
- What is the input voltage range of the TNY276PN?
The input voltage range is 85 VAC to 265 VAC.
- What is the maximum output power of the TNY276PN?
The maximum output power is 15 W (peak/open), with 10 W (adapter) at 230V ±15% and 7 W (adapter) at 85-265V.
- What is the switching frequency of the TNY276PN?
The switching frequency is 140 kHz.
- What is the operating temperature range of the TNY276PN?
The operating temperature range is -40°C to +150°C.
- Does the TNY276PN require a bias winding or bias components?
No, the TNY276PN is self-biased and does not require a bias winding or bias components.
- What safety features does the TNY276PN include?
The TNY276PN includes enhanced safety features such as accurate hysteretic thermal shutdown protection with automatic recovery, output overvoltage shutdown with optional zener, and improved auto-restart in fault conditions.
- Is the TNY276PN compliant with global energy efficiency regulations?
- What is the package style and mounting method of the TNY276PN?
- What is the breakdown voltage of the TNY276PN?
- How does the TNY276PN reduce EMI filter costs?
