TOP221-227 is the third generation TOPSwitch-II series product launched by ST. This series of products adopts three-terminal packaging, which has the characteristics of low cost, high efficiency and small size. It is suitable for applications such as TV, monitor, audio amplifier.
This document describes the TOPSwitch-II family of three-terminal off-line PWM switches, specifically the TOP221-227 series. It details the internal structure, including the power MOSFET, PWM controller, and various protection circuits like auto-restart and current limiting. The family extends the power range from 100W to 150W for single voltage input and 50W to 90W for wide range input.
| Power Range (Single Voltage Input) | 100W to 150W |
|---|---|
| Power Range (Wide Range Input) | 50W to 90W |
| Oscillator Frequency | 100 kHz |
| Auto-restart Duty Cycle | typically 5% |
The series is available in TO-220 (Y) package, 18L PDIP (P) package, and 8L SMD (G) package.
The device achieves very low AC/DC losses with up to 90% efficiency.
Yes, it includes built-in Auto-restart and Current limiting, as well as Latching Thermal shutdown.