TOPSwitch Family Three-terminal Off-line PWM Switch is a high-performance switch power supply chip that integrates PWM controller and 700V MOSFET. It is packaged in a standard DIP package and has the characteristics of small, efficient and reliable.
The document details the Power Integrations TOPSwitch Family, specifically models TOP209 and TOP210. These devices integrate a high voltage N-channel MOSFET with a controlled turn-on gate driver and a voltage mode PWM controller into an industry standard eight pin DIP package. They are intended for off-line power supply applications in the 0 to 8 W (or 0 to 5 W universal) range, replacing linear supplies or discrete switcher solutions.
| Nominal Oscillator Frequency | 100 kHz |
|---|---|
| Maximum Duty Cycle | 70% |
| MOSFET Voltage Rating | 700 V |
| Controller Power Consumption | 6 mW |
The device is intended for applications in the 0 to 8 W (0 to 5 W universal) range.
The nominal frequency of the internal oscillator was chosen to be 100 kHz.
The maximum duty cycle is set by the symmetry of the internal oscillator.