TOP104YAI

® TOP100-4 TOPSwitch® Family Three-terminal Off-line PWM Switch Product Highlights Low Cost Replacement for Discrete Switchers 20 to 50 fewer components - cuts cost, increases reliability Source-connected tab and Controlled MOSFET turn-on reduce EMI and EMI filter costs Allows for a 50% smaller and lighter solution Cost competitive with linears above 5 W Up to 90% Efficiency in Flyback Topology Built-in start-up and current limit reduce DC losses Low capacitance 350 V MOSFET cuts AC losses CMOS controller/gate driver consumes only 6 mW 70% maximum duty cycle minimizes conduction losses Simplifies Design - Reduces Time to Market Supported by many reference designs Integrated PWM Controller and 350 V MOSFET in a industry standard three pin TO-220 package Only one external capacitor needed for compensation, bypass and start-up/auto-restart functions System Level Fault Protection Features Auto-restart and cycle by cycle current limiting functions handle both primary and secondary faults On-chip latching thermal shutdown protects the entire system against overload Highly Versatile Implements Buck, Boost, Flyback or Forward topology Easily interfaces with both opto and primary feedback Supports continuous or discontinuous mode of operation Specified for operation down to 16 V DC input AC IN DRAIN SOURCE CONTROL TOPSwitch PI-1704112995 Figure 1. Typical Application. TOPSwitch SELECTION GUIDE OUTPUT POWER RANGE ORDER PART NUMBER FLYBACK 100/110...