TOP200YN

Product Summary

The TOP200YN is a Three-terminal Off-line PWM Switch. The TOPSwitch family implements, with only three pins, all functions necessary for an off-line switched mode control system: high voltage N-channel power MOSFET with controlled turn-on gate driver, voltage mode PWM controller with integrated 100 kHz oscillator, high voltage start-up bias circuit, bandgap derived reference, bias shunt regulator/error amplifier for loop compensation and fault protection circuitry. Compared to discrete MOSFET and controller or self oscillating (RCC) switching converter solutions, the TOP200YN integrated circuit can reduce total cost, component count, size, weight and at the same time increase efficiency and system reliability.

Parametrics

TOP200YN absolute maximum ratings: (1)DRAIN Voltage: -0.3 to 700 V; (2)CONTROL Voltage: -0.3 V to 9 V; (3)Storage Temperature: -65 to 125℃; (4)Operating Junction Temperature: -40 to 150℃; (5)Lead Temperature: 260℃; (6)Thermal Impedance (qJA): 70℃/W; (7)Thermal Impedance (qJC): 2℃/W.

Features

TOP200YN features: (1)20 to 50 fewer components - cuts cost, increases reliability; (2)Source-connected tab and Controlled MOSFET turn-on reduce EMI and EMI filter costs; (3)Allows for a 50% smaller and lighter solution; (4)Cost competitive with linears above 5 W; (5)Built-in start-up and current limit reduce DC losses; (6)Low capacitance 700 V MOSFET cuts AC losses; (7)CMOS controller/gate driver consumes only 6 mW; (8)70% maximum duty cycle minimizes conduction losses; (9)Supported by many reference design boards; (10)Integrated PWM Controller and 700 V MOSFET in a industry standard three pin TO-220 package; (11)Only one external capacitor needed for compensation, bypass and start-up/auto-restart functions; (12)Auto-restart and cycle by cycle current limiting functions handle both primary and secondary faults; (13)On-chip latching thermal shutdown protects the entire system against overload; (14)Implements Buck, Boost, Flyback or Forward topology; (15)Easily interfaces with both opto and primary feedback; (16)Supports continuous or discontinuous mode of operation.

Diagrams