TNY278PN

TNY274-280 TinySwitch-III Family ® Energy-Efficient, Off-Line Switcher With Enhanced Flexibility and Extended Power Range Product Highlights Lowest System Cost with Enhanced Flexibility • Simple ON/OFF control, no loop compensation needed • Selectable current limit through BP/M capacitor value • Higher current limit extends peak power or, in open frame applications, maximum continuous power • Lower current limit improves efficiency in enclosed adapters/chargers • Allows optimum TinySwitch-III choice by swapping devices with no other circuit redesign • Tight I2f parameter tolerance reduces system cost • Maximizes MOSFET and magnetics power delivery • Minimizes max overload power, reducing cost of transformer, primary clamp & secondary components • ON-time extension – extends low line regulation range/hold-up time to reduce input bulk capacitance • Self-biased: no bias winding or bias components • Frequency jittering reduces EMI filter costs • Pin-out simplifies heatsinking to the PCB • SOURCE pins are electrically quiet for low EMI Enhanced Safety and Reliability Features • Accurate hysteretic thermal shutdown protection with automatic recovery eliminates need for manual reset • Improved auto-restart delivers IDIS (MOSFET Not Switching) See Note A EN/UV Open (MOSFET Switching at fOSC) See Note B % 290 μA TNY274 275 360 TNY275 295 400 TNY276 310 430 TNY277 365 460 TNY278 445 540 TNY279 510 640 TNY280 630 760 μA 12 Rev. I 01/09 www.powerint.com TNY274-280 Parameter Symbol Conditions SOURCE = 0 V; TJ = -40 to 125 °C See Figure 16 (Unless Otherwise Specified) Min Typ Max Units TNY274 -6 -3.8 -1.8 TNY275-278 -8.3 -5.4 -2.5 TNY279-280 -9.7 -6.8 -3.9 TNY274 -4.1 -2.3 -1 TNY275-278 -5 -3.5 -1.5 TNY279-280 -6.6 -4.6 -2.1 5.6 5.85 6.15 V 0.80 0.95 1.20 V Control Functions (cont.) ICH1 VBP/M = 0 V, TJ = 25 °C See Note C, D BP/M Pin Charge Current mA ICH2 VBP/M = 4 V, TJ = 25 °C See Note C, D BP/M Pin Voltage VBP/M BP/M Pin Voltage Hysteresis VBP/MH BP/M Pin Shunt Voltage VSHUNT IBP = 2 mA 6.0 6.4 6.7 V ILUV TJ = 25 °C 22.5 25 27.5 μA TNY274P 233 250 267 TNY274G 233 250 273 TNY275P 256 275 294 TNY275G 256 275 300 TNY276P 326 350 374 TNY276G 326 350 382 TNY277P 419 450 481 TNY277G 419 450 491 TNY278P 512 550 588 TNY278G 512 550 600 TNY279P 605 650 695 TNY279G 605 650 709 TNY280P 698 750 802 TNY280G 698 750 818 EN/UV Pin Line Undervoltage Threshold See Note C Circuit Protection di/dt = 50 mA/μs TJ = 25 °C See Note E di/dt = 55 mA/μs TJ = 25 °C See Note E di/dt = 70 mA/μs TJ = 25 °C See Note E Standard Current Limit (BP/M Capacitor = 0.1 μF) See Note D ILIMIT di/dt = 90 mA/μs TJ = 25 °C See Note E di/dt = 110 mA/μs TJ = 25 °C See Note E di/dt = 130 mA/μs TJ = 25 °C See Note E di/dt = 150 mA/μs TJ = 25 °C See Note E mA 13 www.powerint.com Rev. I 01/09 TNY274-280 Parameter Symbol Conditions SOURCE = 0 V; TJ = -40 to 125 °C See Figure 16 (Unless Otherwise Specified) Min Typ Max TNY274P 196 210 233 TNY274G 196 210 237 TNY275P 233 250 277 TNY275G 233 250 283 TNY276P 256 275 305 TNY276G 256 275 311 TNY277P 326 350 388 TNY277G 326 350 396 TNY278P 419 450 499 TNY278G 419 450 509 TNY279P 512 550 610 TNY279G 512 550 622 TNY280P 605 650 721 TNY280G 605 650 735 TNY274P 196 210 233 TNY274G 196 210 237 TNY275P 326 350 388 TNY275G 326 350 396 TNY276P 419 450 499 TNY276G 419 450 509 TNY277P 512 550 610 TNY277G 512 550 622 TNY278P 605 650 721 TNY278G 605 650 735 TNY279P 698 750 833 TNY279G 698 750 848 TNY280P 791 850 943 TNY280G 791 850 961 Units Circuit Protection (cont.) di/dt = 50 mA/μs TJ = 25 °C See Note E di/dt = 55 mA/μs TJ = 25 °C See Note E di/dt = 70 mA/μs TJ = 25 °C See Notes E Reduced Current Limit (BP/M Capacitor = 1 μF) See Note D ILIMITred di/dt = 90 mA/μs TJ = 25 °C See Notes E di/dt = 110 mA/μs TJ = 25 °C See Notes E di/dt = 130 mA/μs TJ = 25 °C See Notes E di/dt = 150 mA/μs TJ = 25 °C See Notes E di/dt = 50 mA/μs TJ = 25 °C See Notes E, F di/dt = 55 mA/μs TJ = 25 °C See Notes E di/dt = 70 mA/μs TJ = 25 °C See Notes E Increased Current Limit (BP/M Capacitor = 10 μF) See Note D ILIMITinc di/dt = 90 mA/μs TJ = 25 °C See Notes E di/dt = 110 mA/μs TJ = 25 °C See Notes E di/dt = 130 mA/μs TJ = 25 °C See Notes E di/dt = 150 mA/μs TJ = 25 °C See Notes E mA mA 14 Rev. I 01/09 www.powerint.com TNY274-280 Parameter Symbol Conditions SOURCE = 0 V; TJ = -40 to 125 °C See Figure 16 (Unless Otherwise Specified) Min Typ Max TNY274-280P 0.9 × I2f I2f 1.12 × I2f TNY274-280G 0.9 × I2f I2f 1.16 × I2f TNY274-280P 0.9 × I2f I2f 1.16 × I2f TNY274-280G 0.9 × I2 f I2f 1.20 × I2f TNY274-280P 0.9 × I2f I2f 1.16 × I2f TNY274-280G 0.9 × I2 f I2f 1.20 × I2f Units Circuit Protection (cont.) Standard Current Limit, I2f = ILIMIT(TYP)2 × fOSC(TYP) TJ = 25 °C Power Coefficient I2f Reduced Current Limit, I2f = ILIMITred(TYP)2 × fOSC(TYP) TJ = 25 °C Increased Current Limit, I2f = ILIMITinc(TYP)2 × fOSC(TYP) TJ = 25 °C A2Hz Initial Current Limit IINIT See Figure 19 TJ = 25 °C, See Note G 0.75 × ILIMIT(MIN) Leading Edge Blanking Time tLEB TJ = 25 °C See Note G 170 Current Limit Delay tILD TJ = 25 °C See Note G, H Thermal Shutdown Temperature TSD Thermal Shutdown Hysteresis TSDH BP/M Pin Shutdown Threshold Current ISD 4 6.5 9 mA BP/M Pin Power up Reset Threshold Voltage VBP/M(RESET) 1.6 2.6 3.6 V TJ = 25 °C 28 32 TJ = 100 °C 42 48 TJ = 25 °C 19 22 TJ = 100 °C 29 33 TJ = 25 °C 14 16 TJ = 100 °C 21 24 135 mA 215 ns 150 ns 142 150 75 °C °C Output TNY274 ID = 25 mA ON-State Resistance RDS(ON) TNY275 ID = 28 mA TNY276 ID = 35 mA Ω 15 www.powerint.com Rev. I 01/09 TNY274-280 Parameter Symbol Conditions SOURCE = 0 V; TJ = -40 to 125 °C See Figure 16 (Unless Otherwise Specified) Min Typ Max TJ = 25 °C 7.8 9.0 TJ = 100 °C 11.7 13.5 TJ = 25 °C 5.2 6.0 TJ = 100 °C 7.8 9.0 TJ = 25 °C 3.9 4.5 TJ = 100 °C 5.8 6.7 TJ = 25 °C 2.6 3.0 TJ = 100 °C 3.9 4.5 Units Output (cont.) TNY277 ID = 45 mA ON-State Resistance TNY278 ID = 55 mA RDS(ON) TNY279 ID = 65 mA TNY280 ID = 75 mA IDSS1 OFF-State Drain Leakage Current IDSS2 Breakdown Voltage BVDSS VBP/M = 6.2 V VEN/UV = 0 V VDS = 560 V TJ = 125 °C See Note I VBP/M = 6.2 V VEN/UV = 0 V TNY274-276 50 TNY277-278 100 TNY279-280 200 VDS = 375 V, TJ = 50 °C See Note G, I VBP = 6.2 V, VEN/UV = 0 V, See Note J, TJ = 25 °C DRAIN Supply Voltage Auto-Restart ON-Time at fOSC Auto-Restart Duty Cycle Ω μA 15 700 V 50 V tAR TJ = 25 °C See Note K 64 ms DCAR TJ = 25 °C 3 % 16 Rev. I 01/09 www.powerint.com TNY274-280 NOTES: A. IS1 is an accurate estimate of device controller current consumption at no-load, since operating frequency is so low under these conditions. Total device consumption at no-load is the sum of IS1 and IDSS2. B. Since the output MOSFET is switching, it is difficult to isolate the switching current from the supply current at the DRAIN. An alternative is to measure the BP/M pin current at 6.1 V. C. BP/M pin is not intended for sourcing supply current to external circuitry. D. To ensure correct current limit it is recommended that nominal 0.1 μF / 1 μF / 10 μF capacitors are used. In addition, the BP/M capacitor value tolerance should be equal or better than indicated below across the ambient temperature range of the target application. The minimum and maximum capacitor values are guaranteed by characterization. Nominal BP/M Pin Cap Value Tolerance Relative to Nominal Capacitor Value Min Max 0.1 μF -60% +100% 1 μF -50% +100% 10 μF -50% NA E. For current limit at other di/dt values, refer to Figure 23. F. TNY274 does not set an increased current limit value, but with a 10 μF BP/M pin capacitor the current limit is the same as with a 1 μF BP/M pin capacitor (reduced current limit value). G. This parameter is derived from characterization. H. This parameter is derived from the change in current limit measured at 1X and 4X of the di/dt shown in the ILIMIT specification. I. IDSS1 is the worst case OFF state leakage specification at 80% of BVDSS and maximum operating junction temperature. IDSS2 is a typical specification under worst case application conditions (rectified 265 VAC) for no-load consumption calculations. J. Breakdown voltage may be checked against minimum BVDSS specification by ramping the DRAIN pin voltage up to but not exceeding minimum BVDSS. K. Auto-restart on time has the same temperature characteristics as the oscillator (inversely proportional to frequency). 17 www.powerint.com Rev. I 01/09 TNY274-280 470 Ω 5W S2 470 Ω S D S1 S S S 2 MΩ 50 V BP/M EN/UV 10 V 0.1 μF 150 V NOTE: This test circuit is not applicable for current limit or output characteristic measurements. PI-4079-080905 Figure 16. General Test Circuit. DCMAX (internal signal) tP EN/UV tEN/UV VDRAIN tP = 1 fOSC PI-2364-012699 Figure 18. Output Enable Timing. PI-4279-013006 Figure 17. Duty Cycle Measurement. 0.8 Figure 19. Current Limit Envelope. 18 Rev. I 01/09 www.powerint.com TNY274-280 1.0 PI-4280-012306 1.2 Output Frequency (Normalized to 25 °C) PI-2213-012301 Breakdown Voltage (Normalized to 25 °C) 1.1 1.0 0.8 0.6 0.4 0.2 0 0.9 -50 -25 0 25 50 -50 75 100 125 150 Junction Temperature (°C) 25 50 75 100 125 Figure 21. Frequency vs. Temperature. 0.8 0.6 0.4 0.2 0 PI-4081-082305 1 1.4 Normalized Current Limit PI-4102-010906 1.2 1.2 1.0 0.8 TNY274 TNY275 TNY276 TNY277 TNY278 TNY279 TNY280 0.6 0.4 0.2 Normalized di/dt = 1 50 mA/μs 55 mA/μs 70 mA/μs 90 mA/μs 110 mA/μs 130 mA/μs 150 mA/μs Note: For the normalized current limit value, use the typical current limit specified for the appropriate BP/M capacitor. 0 -50 0 50 100 150 1 2 Temperature (°C) 150 100 TCASE=25 °C TCASE=100 °C 50 PI-4083-082305 1000 Drain Capacitance (pF) Scaling Factors: TNY274 1.0 TNY275 1.5 TNY276 2.0 TNY277 3.5 TNY278 5.5 TNY279 7.3 TNY280 11 200 4 Figure 23. Current Limit vs. di/dt. PI-4082-082305 300 250 3 Normalized di/dt Figure 22. Standard Current Limit vs. Temperature. Drain Current (mA) 0 Junction Temperature (°C) Figure 20. Breakdown vs. Temperature. Standard Current Limit (Normalized to 25 °C) -25 100 Scaling Factors: TNY274 1.0 TNY275 1.5 TNY276 2.0 TNY277 3.5 TNY278 5.5 TNY279 7.3 TNY280 11 10 1 0 0 2 4 6 DRAIN Voltage (V) Figure 24. Output Characteristic. 8 10 0 100 200 300 400 500 600 Drain Voltage (V) Figure 25. COSS vs. Drain Voltage. 19 www.powerint.com Rev. I 01/09 TNY274-280 Power (mW) 30 20 10 PI-4281-012306 Under-Voltage Threshold (Normalized to 25 °C) Scaling Factors: TNY274 1.0 TNY275 1.5 TNY276 2.0 TNY277 3.5 TNY278 5.5 TNY279 7.3 TNY280 11 40 1.2 PI-4084-082305 50 1.0 0.8 0.6 0.4 0.2 0 0 -50 0 200 400 600 -25 0 25 50 75 100 125 Junction Temperature (°C) DRAIN Voltage (V) Figure 27. Undervoltage Threshold vs. Temperature. Figure 26. Drain Capacitance Power. DIP-8C ⊕D S .004 (.10) -E- .240 (6.10) .260 (6.60) Pin 1 -D- .367 (9.32) .387 (9.83) .057 (1.45) .068 (1.73) (NOTE 6) .125 (3.18) .145 (3.68) Notes: 1. Package dimensions conform to JEDEC specification MS-001-AB (Issue B 7/85) for standard dual-in-line (DIP) package with .300 inch row spacing. 2. Controlling dimensions are inches. Millimeter sizes are shown in parentheses. 3. Dimensions shown do not include mold flash or other protrusions. Mold flash or protrusions shall not exceed .006 (.15) on any side. 4. Pin locations start with Pin 1, and continue counter-clockwise to Pin 8 when viewed from the top. The notch and/or dimple are aids in locating Pin 1. Pin 3 is omitted. 5. Minimum metal to metal spacing at the package body for the omitted lead location is .137 inch (3.48 mm). 6. Lead width measured at package body. 7. Lead spacing measured with the leads constrained to be perpendicular to plane T. .015 (.38) MINIMUM -TSEATING PLANE .120 (3.05) .140 (3.56) .100 (2.54) BSC .014 (.36) .022 (.56) .048 (1.22) .053 (1.35) ⊕T E D .137 (3.48) MINIMUM S .010 (.25) M .008 (.20) .015 (.38) .300 (7.62) BSC (NOTE 7) .300 (7.62) .390 (9.91) P08C PI-3933-100504 20 Rev. I 01/09 www.powerint.com TNY274-280 SMD-8C ⊕ D S .004 (.10) .046 .060 .060 .046 -E.080 .086 .186 .372 (9.45) .388 (9.86) ⊕ E S .010 (.25) .240 (6.10) .260 (6.60) .286 Pin 1 .420 Pin 1 .100 (2.54) (BSC) .137 (3.48) MINIMUM Solder Pad Dimensions .367 (9.32) .387 (9.83) -D- Notes: 1. Controlling dimensions are inches. Millimeter sizes are shown in parentheses. 2. Dimensions shown do not include mold flash or other protrusions. Mold flash or protrusions shall not exceed .006 (.15) on any side. 3. Pin locations start with Pin 1, and continue counter-clockwise to Pin 8 when viewed from the top. Pin 3 is omitted. 4. Minimum metal to metal spacing at the package body for the omitted lead location is .137 inch (3.48 mm). 5. Lead width measured at package body. 6. D and E are referenced datums on the package body. .057 (1.45) .068 (1.73) (NOTE 5) .125 (3.18) .145 (3.68) .032 (.81) .037 (.94) .048 (1.22) .053 (1.35) .004 (.10) .009 (.23) .004 (.10) .012 (.30) .036 (0.91) .044 (1.12) 0°- 8° G08C PI-4015-013106 Part Ordering Information • TinySwitch Product Family • Series Number • Package Identifier G Plastic Surface Mount SMD-8C P Plastic DIP-8C • Lead Finish N Pure Matte Tin (Pb-Free) G RoHS compliant and Halogen Free (P package only) • Tape & Reel and Other Options Blank TNY 278 G N - TL TL Standard Configuration Tape & Reel, 1000 pcs min./mult., G package only 21 www.powerint.com Rev. I 01/09 TNY274-280 22 Rev. I 01/09 www.powerint.com TNY274-280 Revision Notes Date D Release final data sheet. 1/06 E Corrected figure numbers and references. 2/06 F Separated current limit and power coefficient values for G package and updated Figure 15. Added EN/UV and PC board leakage currents in Key Applications Considerations section. 4/06 G Updated line undervoltage current threshold to 2 mA. 6/06 H Updated BP/M Pin Charge current and Power Coefficient sections of Parameter Tables. 9/08 I Updated Part Ordering Information section with Halogen Free. 1/09 23 www.powerint.com Rev. I 01/09 For the latest updates, visit our website: www.powerint.com Power Integrations reserves the right to make changes to its products at any time to improve reliability or manufacturability. Power Integrations does not assume any liability arising from the use of any device or circuit described herein. POWER INTEGRATIONS MAKES NO WARRANTY HEREIN AND SPECIFICALLY DISCLAIMS ALL WARRANTIES INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT OF THIRD PARTY RIGHTS. Patent Information The products and applications illustrated herein (including transformer construction and circuits external to the products) may be covered by one or more U.S. and foreign patents, or potentially by pending U.S. and foreign patent applications assigned to Power Integrations. A complete list of Power Integrations patents may be found at www.powerint.com. Power Integrations grants its customers a license under certain patent rights as set forth at http://www.powerint.com/ip.htm. Life Support Policy POWER INTEGRATIONS PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF POWER INTEGRATIONS. As used herein: 1. A Life support device or system is one which, (i) is intended for surgical implant into the body, or (ii) supports or sustains life, and (iii) whose failure to perform, when properly used in accordance with instructions for use, can be reasonably expected to result in significant injury or death to the user. 2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. The PI logo, TOPSwitch, TinySwitch, LinkSwitch, DPA-Switch, PeakSwitch, EcoSmart, Clampless, E-Shield, Filterfuse, StakFET, PI Expert and PI FACTS are trademarks of Power Integrations, Inc. Other trademarks are property of their respective companies. ©2006, Power Integrations, Inc. Power Integrations Worldwide Sales Support Locations World Headquarters 5245 Hellyer Avenue San Jose, CA 95138, USA. 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