in this video number {786} TOP221-227 SMPS IC Circuit Description and Testing. i explained TOP221, TOP222, TOP2223, TOP224, TOP225, TOP226 & TOP227 TOP Switch-II Family Three-Terminal Off-Line PWM Switch IC. it is 100 KHz offline switching IC used in universal power supply circuits, it have VCC voltage range from 4.7 V to 5.7 V.
it is Lowest cost, lowest component count switcher solution with Cost competitive with linear above 5 W. Very low AC/DC losses – up to 90% efficiency. it have Built-in Auto-restart and Current limiting. it have Latching Thermal shutdown for system level protection. it Implements Flyback, Forward, Boost or Buck topologies. Works with primary or opto feedback. Stable in discontinuous or continuous conduction mode operation. Source connected tab for low EMI, Circuit simplicity and Design Tools.
it is second generation TOPSwitch-II family. it is more cost effective and provides several enhancements over the first generation TOPSwitch family. The TOPSwitch-II family extends the power range from 100W to 150W for 100/115/ 230 VAC input and from 50W to 90W for 85-265 VAC universal
input. This brings TOPSwitch technology advantages to many new applications, i.e. TV, Monitor, Audio amplifiers, etc. Many significant circuit enhancements that reduce the sensitivity to board layout and line transients now make the design even easier. The standard 8L PDIP package option reduces cost in lower power, high efficiency applications. The internal lead frame of this package uses six of its pins to transfer heat from the chip directly to the board, eliminating the cost of a heatsink. TOPSwitch incorporates all functions necessary for a switched mode control system into a three terminal monolithic IC: power MOSFET, PWM controller, high
voltage start up circuit, loop compensation and fault protection circuitry.
TOP221YN, TOP222YN, TOP223YN, TOP224YN, TOP225YN, 0TOP226YN, TOP227YN, TOP221 PNTOP221GN, TOP222 PN, TOP222GN, TOP223PN, TOP223GN, TOP224 PN, TOP224GN,
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TOP221-227 SMPS IC Circuit Description and Testing, testing top221 ic, testing top227 ic, how to test smps controller ic, TOP221YN, TOP222YN, TOP223YN, TOP224YN, TOP225YN, 0TOP226YN, TOP227YN, TOP221 PNTOP221GN, TOP222 PN, TOP222GN, TOP223PN, TOP223GN, TOP224 PN, TOP224GN, smps circuit design, switch mode power supply explained, smps circuit, smps circuit diagram explanation, smps circuit diagram, smps circuit repair, haseeb electronics, how to test smps ic, smps controller ic



00:00 top221, top224 explained
00:18 top224Y, top224pn offline switch
00:50 top221, top222, top223, top224, top225 top226 top227
03:09 top221, top222, top223, top224, top225 top226 top227 pinout
06:56 top221, top222, top223, top224, top225 top226 top227 power supply circuit diagram
09:01 how to test top221, top222, top223, top224, top225 top226 top227

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