Product Overview
Three-Terminal Off-Line PWM Controller with Integrated 700V Switch for Flyback Power Supplies
Condition
Unused NOS part in excellent condition with nothing out of the ordinary noted. Sourced from our ongoing recovery from legacy electronics supply chains. Evaluation: Visual inspection only. Function testing not performed. Covered by our No Hassle PartsMine Guarantee.
Ships same business day from Idaho. Packed carefully.
Product Overview
Power Integrations TOP202YAI is a three-terminal off-line PWM switcher for compact switched-mode power supply designs. It combines power switching and control functions in one TO-220 package to reduce external component count in flyback converter applications.
Key Features
- TOP202YAI off-line PWM switcher IC
- 700V rating
- TO-220 package
- Low-cost replacement for discrete switchers
- Up to 90% efficiency in flyback topology
- Auto-restart function
- Cycle-by-cycle current limiting
- Handles both primary and secondary faults
Applications
- Switched-mode power supplies
- Flyback AC-DC converter designs
- Legacy power supply repair
- Industrial control power sections
- Electronics prototyping and replacement work
Frequently Asked Questions
What package does this part use?
This part uses a TO-220 package.
What type of power supply design is it used in?
It is used in off-line switched-mode power supplies and is noted for flyback topology applications.
What protection features are called out in the research notes?
The research notes specify auto-restart and cycle-by-cycle current limiting, with handling for both primary and secondary faults.
Is this suitable as a replacement for newer TOPSwitch series parts?
Not confirmed. Research notes indicate newer series may differ and should be matched by exact part number and package requirements.
Best fit for repair and replacement work where the exact TOP202YAI off-line switcher and TO-220 footprint are required.
