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TOP225YN
This product is not recommended for new designs. TOP221-227 TOPSwitch-II Family Three-Terminal Off-Line PWM Switch Product Highlights • • • • • • • • • • Lowest cost, lowest component count switcher solution Cost competitive with linears above 5 W Very low AC/DC losses – up to 90% efficiency Built-in Auto-restart and Current limiting Latching Thermal shutdown for system level protection Implements Flyback, Forward, Boost or Buck topology Works with primary or opto feedback Stable in discontinuous or continuous conduction mode Source connected tab for low EMI Circuit simplicity and Design Tools reduce time to market AC IN D CONTROL TOPSwitch C S Description PI-1951-091996 The second generation TOPSwitch™-II family 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 Figure 1. Typical Flyback Application. 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 heat sink. 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. Output Power Table TO-220 (Y) Package1 8L PDIP (P) or 8L SMD (G) Package2 Single Voltage Input 3 100/115/230 VAC ±15% Wide Range Input 85 to 265 VAC PART ORDER NUMBER Single Voltage Input 3 100/115/230 VAC ±15% Wide Range Input 85 to 265 VAC PMAX4,6 PMAX4,6 TOP221YN 12 W 7W TOP221 N or TOP221GN P 9W 6W TOP222YN 25 W 15 W TOP222 N or TOP222GN P 15 W 10 W TOP223YN 50 W 30 W TOP223 N or TOP223GN P 25 W 15 W TOP224YN 75 W 45 W TOP224 N or TOP224GN P 30 W 20 W TOP225YN 100 W 60 W TOP226YN 125 W 75 W TOP227YN 150 W 90 W PART ORDER NUMBER PMAX5,6 PMAX5,6 Notes: 1. Package outline: TO-220/3 2. Package Outline: DIP-8 or SMD-8 3. 100/115 VAC with doubler input 4. Assumes appropriate heat sinking to keep the maximum TOPSwitch junction temperature below 100 °C. 5. Soldered to 1 sq. in. (6.45 cm2), 2 oz. copper clad (610 gm/m2) 6. PMAX is the maximum practical continuous power output level for conditions shown. The continuous power capability in a given application depends on thermal environment, transformer design, efficiency required, minimum specified input voltage, input storage capacitance, etc. 7. Refer to key application considerations section when using TOPSwitch-II in an existing TOPSwitch design. www.power.com August 2016 This Product is Covered by Patents and/or Pending Patent Applications.
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