产品概览
The TNY280PN from Power Integrations is a TinySwitch-III series off-line flyback switcher integrating a 700V power MOSFET, oscillator, and control circuitry. Using simple ON/OFF control without loop compensation, it delivers up to 20W (enclosed adapter, 230VAC) or 14W (universal input). The DIP-8 through-hole package enables easy heat sinking to the PCB. Features include selectable current limit, frequency jittering for reduced EMI, and auto-restart protection.
主要规格
| 类型 | Off-Line Flyback Switcher |
| 拓扑结构 | Flyback (ON/OFF control) |
| Internal MOSFET | 700V |
| Output Power (Enclosed, 230V) | 20W |
| Output Power (Enclosed, 85-265V) | 14W |
| Output Power (Open Frame, 230V) | 36.5W |
| 开关频率 | 132 kHz (with jitter) |
| 输入电压范围 | 85 – 265 VAC |
| 包装 | DIP-8 (Through-Hole) |
| Operating Temp | -40 to 150 C (Tj) |
特点
- Integrated 700V power MOSFET reduces BOM count
- Simple ON/OFF control, no loop compensation needed
- Selectable current limit via BP/M capacitor value
- Frequency jittering reduces EMI filter cost
- No-load consumption < 150 mW at 265VAC
- Auto-restart limits output to < 3% during faults
- Built-in thermal shutdown with automatic recovery
- Self-biased: no bias winding required
应用
- Cell phone and PDA chargers
- Digital camera and portable audio adapters
- PC standby and auxiliary power supplies
- Home appliance power supplies
- Industrial and metering power supplies