TOP243YN Extended power Flexible design, Eco-Smart,
integrated off-line switcher 6 pin IC
The TOP243YN is a integrated off line switcher IC. It is use to integrate high voltage power MOSFET, PWM control, fault protection and other control circuitry onto a single CMOS chip. This IC consist many new functions to reduce system cost, improve design flexibility, provide high performance and energy efficiency. In addition all critical parameters (current limit, frequency, PWM gain) have tighter temperature; and absolute tolerances to simplify design and optimize system cost.
- Extended power range for higher power applications
- Wider duty cycle for more power, smaller input capacitor
- Regulates to zero load without dummy loading
- 132KHz frequency reduces transformer/power supply size
- Hysteretic thermal shutdown for automatic fault recovery