Product Overview
Three-Terminal Off-Line PWM Controller with Integrated 700V MOSFET for SMPS Repair and Design
Condition
Unused NOS part in excellent condition with nothing out of the ordinary noted. Kept in original packaging and 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 that combines a high-voltage N-channel MOSFET, PWM controller, oscillator, and protection functions in one compact package. It is used in switched-mode power supplies where designers or repair technicians need an integrated off-line switching solution in a TO-220 package.
Key Features
- TOP202YAI off-line PWM switcher IC
- 700V high-voltage N-channel MOSFET
- TO-220 three-terminal package
- Integrated 100 kHz oscillator
- Voltage-mode PWM control
- Built-in start-up bias circuit
- Bandgap reference and bias regulator
- Integrated loop compensation and fault protection
Applications
- Switched-mode power supplies
- Legacy power supply repair
- AC-DC converter designs
- Industrial control power sections
- Prototyping and circuit development
Frequently Asked Questions
What functions are integrated into the TOP202YAI?
It integrates a high-voltage N-channel MOSFET, PWM controller, oscillator, start-up bias circuit, bandgap reference, bias regulator, loop compensation, and fault protection.
What package does this part use?
It uses a TO-220 three-terminal package.
What is the switching frequency?
The integrated oscillator operates at 100 kHz.
Is this a drop-in replacement for newer TOPSwitch families?
Not confirmed. Research notes state newer TopSwitch-JX or TopSwitch-HX series may differ in pinout and power ratings.
Strong fit for repair benches and legacy SMPS builds where the exact TOP202YAI package and function are required.
