TNY274

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 TNY274 TNY275 1.8 0.8 2.2 1.2 290 275 295 310 365 445 510 630 2.6 V 1.6 μA 360 400 430 460 540 640 760 μA IS1 DRAIN Supply Current IS2 EN/UV Open (MOSFET Switching at fOSC) See Note B TNY276 TNY277 TNY278 TNY279 TNY280 12 Rev. I 01/09 www.powerint.com TNY274-280 Conditions SOURCE = 0 V; TJ = -40 to 125 °C See Figure 16 (Unless Otherwise Specified) Parameter Symbol Min Typ Max Units Control Functions (cont.) TNY274 ICH1 BP/M Pin Charge Current ICH2 VBP/M = 4 V, TJ = 25 °C See Note C, D VBP/M = 0 V, TJ = 25 °C See Note C, D TNY275-278 TNY279-280 TNY274 TNY275-278 TNY279-280 BP/M Pin Voltage BP/M Pin Voltage Hysteresis BP/M Pin Shunt Voltage EN/UV Pin Line Undervoltage Threshold 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 TNY274P TNY274G TNY275P TNY275G TNY276P TNY276G TNY277P TNY277G TNY278P TNY278G TNY279P TNY279G TNY280P TNY280G 233 233 256 256 326 326 419 419 512 512 605 605 698 698 250 250 275 275 350 350 450 450 550 550 650 650 750 750 267 273 294 300 374 382 481 mA 491 588 600 695 709 802 818 VBP/M VBP/MH VSHUNT ILUV IBP = 2 mA TJ = 25 °C See Note C -6 -8.3 -9.7 -4.1 -5 -6.6 5.6 0.80 6.0 22.5 -3.8 -5.4 -6.8 -2.3 -3.5 -4.6 5.85 0.95 6.4 25 -1.8 -2.5 -3.9 mA -1 -1.5 -2.1 6.15 1.20 6.7 27.5 V V V μA 13 www.powerint.com Rev. I 01/09 TNY274-280 Conditions SOURCE = 0 V; TJ = -40 to 125 °C See Figure 16 (Unless Otherwise Specified) Parameter Symbol Min Typ Max 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 TNY274P TNY274G TNY275P TNY275G TNY276P TNY276G TNY277P TNY277G TNY278P TNY278G TNY279P TNY279G TNY280P TNY280G TNY274P TNY274G TNY275P TNY275G TNY276P TNY276G TNY277P TNY277G TNY278P TNY278G TNY279P TNY279G TNY280P TNY280G 196 196 233 233 256 256 326 326 419 419 512 512 605 605 196 196 326 326 419 419 512 512 605 605 698 698 791 791 210 210 250 250 275 275 350 350 450 450 550 550 650 650 210 210 350 350 450 450 550 550 650 650 750 750 850 850 233 237 277 283 305 311 388 mA 396 499 509 610 622 721 735 233 237 388 396 499 509 610 mA 622 721 735 833 848 943 961 14 Rev. I 01/09 www.powerint.com TNY274-280 Conditions SOURCE = 0 V; TJ = -40 to 125 °C See Figure 16 (Unless Otherwise Specified) Parameter Symbol Min Typ Max Units Circuit Protection (cont.) Standard Current Limit, I2f = ILIMIT(TYP)2 × fOSC(TYP) TJ = 25 °C Reduced Current Limit, I2f = ILIMITred(TYP)2 × fOSC(TYP) TJ = 25 °C Increased Current Limit, I2f = ILIMITinc(TYP)2 × fOSC(TYP) TJ = 25 °C Initial Current Limit Leading Edge Blanking Time Current Limit Delay Thermal Shutdown Temperature Thermal Shutdown Hysteresis BP/M Pin Shutdown Threshold Current BP/M Pin Power up Reset Threshold Voltage Output TNY274 ID = 25 mA ON-State Resistance RDS(ON) TNY275 ID = 28 mA TNY276 ID = 35 mA TJ = 25 °C TJ = 100 °C TJ = 25 °C TJ = 100 °C TJ = 25 °C TJ = 100 °C 28 42 19 29 14 21 32 48 22 33 16 24 Ω IINIT TNY274-280P TNY274-280G TNY274-280P TNY274-280G TNY274-280P TNY274-280G 0.9 × I2f 0.9 × I2f 0.9 × I2f 0.9 × I2 f 0.9 × I2f 0.9 × I2 f 0.75 × ILIMIT(MIN) 170 215 I2f I2f I2f I2f I2f I2f 1.12 × I2f 1.16 × I2f 1.16 × I2f 1.20 × I2f 1.16 × I2f 1.20 × I2f mA Power Coefficient I2f A2Hz See Figure 19 TJ = 25 °C, See Note G TJ = 25 °C See Note G TJ = 25 °C See Note G, H tLEB ns tILD 150 ns TSD 135 142 150 °C TSDH 75 °C ISD 4 6.5 9 mA VBP/M(RESET) 1.6 2.6 3.6 V 15 www.powerint.com Rev. I 01/09 TNY274-280 Conditions SOURCE = 0 V; TJ = -40 to 125 °C See Figure 16 (Unless Otherwise Specified) Parameter Symbol Min Typ Max Units Output (cont.) TNY277 ID = 45 mA TNY278 ID = 55 mA RDS(ON) TNY279 ID = 65 mA TNY280 ID = 75 mA 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 TJ = 25 °C TJ = 100 °C TJ = 25 °C TJ = 100 °C TJ = 25 °C TJ = 100 °C TJ = 25 °C TJ = 100 °C TNY274-276 TNY277-278 TNY279-280 VDS = 375 V, TJ = 50 °C See Note G, I 700 7.8 11.7 5.2 7.8 3.9 5.8 2.6 3.9 9.0 13.5 6.0 9.0 4.5 6.7 3.0 4.5 50 100 200 μA Ω ON-State Resistance IDSS1 OFF-State Drain Leakage Current IDSS2 Breakdown Voltage DRAIN Supply Voltage Auto-Restart ON-Time at fOSC Auto-Restart Duty Cycle tAR 15 BVDSS VBP = 6.2 V, VEN/UV = 0 V, See Note J, TJ = 25 °C V 50 TJ = 25 °C See Note K TJ = 25 °C V 64 ms DCAR 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. Tolerance Relative to Nominal Capacitor Value Min 0.1 μF 1 μF 10 μF -60% -50% -50% Max +100% +100% NA Nominal BP/M Pin Cap Value 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 470 Ω S S S S BP/M EN/UV D S2 S1 2 MΩ 50 V 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 VDRAIN tP = 1 fOSC PI-2364-012699 tEN/UV Figure 17. Duty Cycle Measurement. Figure 18. Output Enable Timing. 0.8 Figure 19. Current Limit Envelope. 18 Rev. I 01/09 PI-4279-013006 www.powerint.com TNY274-280 PI-2213-012301 PI-4280-012306 1.1 1.2 1.0 0.8 0.6 0.4 0.2 Breakdown Voltage (Normalized to 25 °C) 1.0 Output Frequency (Normalized to 25 °C) 0.9 -50 -25 0 25 50 75 100 125 150 0 -50 -25 0 25 50 75 100 125 Junction Temperature (°C) Figure 20. Breakdown vs. Temperature. Junction Temperature ( °C) Figure 21. Frequency vs. Temperature. Standard Current Limit (Normalized to 25 °C) 1 0.8 0.6 0.4 0.2 0 -50 0 50 100 Normalized Current Limit 1.2 1.0 0.8 0.6 0.4 0.2 0 TNY274 TNY275 TNY276 TNY277 TNY278 TNY279 TNY280 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. 150 1 2 3 4 Temperature (°C) Figure 22. Standard Current Limit vs. Temperature. Normalized di/dt Figure 23. Current Limit vs. di/dt. Drain Capacitance (pF) 250 Drain Current (mA) 200 150 100 50 0 0 Scaling Factors: TNY274 1.0 TNY275 1.5 TNY276 2.0 TNY277 3.5 TNY278 5.5 TNY279 7.3 TNY280 11 PI-4082-082305 100 10 TCASE=25 °C TCASE=100 °C Scaling Factors: TNY274 1.0 TNY275 1.5 TNY276 2.0 TNY277 3.5 TNY278 5.5 TNY279 7.3 TNY280 11 1 2 4 6 8 10 0 100 200 300 400 500 600 DRAIN Voltage (V) Figure 24. Output Characteristic. Drain Voltage (V) Figure 25. COSS vs. Drain Voltage. PI-4083-082305 300 1000 PI-4081-082305 PI-4102-010906 1.2 1.4 19 www.powerint.com Rev. I 01/09 TNY274-280 PI-4084-082305 Under-Voltage Threshold (Normalized to 25 °C) 40 Power (mW) 30 Scaling Factors: TNY274 1.0 TNY275 1.5 TNY276 2.0 TNY277 3.5 TNY278 5.5 TNY279 7.3 TNY280 11 1.0 0.8 0.6 0.4 0.2 20 10 0 0 0 200 400 600 -50 -25 0 25 50 75 100 125 Junction Temperature (°C) Figure 27. Undervoltage Threshold vs. Temperature. DRAIN Voltage (V) Figure 26. Drain Capacitance Power. DIP-8C ⊕D S -E.004 (.10) 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. .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) .015 (.38) MINIMUM -TSEATING PLANE .120 (3.05) .140 (3.56) .008 (.20) .015 (.38) .100 (2.54) BSC .014 (.36) .022 (.56) .048 (1.22) .053 (1.35) .137 (3.48) MINIMUM .300 (7.62) BSC (NOTE 7) .300 (7.62) .390 (9.91) P08C PI-3933-100504 ⊕T E D S .010 (.25) M 20 Rev. I 01/09 www.powerint.com PI-4281-012306 50 1.2 TNY274-280 SMD-8C ⊕ D S .004 (.10) -E.080 .086 .240 (6.10) .260 (6.60) .372 (9.45) .388 (9.86) ⊕ E S .010 (.25) .186 .286 .420 .046 .060 .060 .046 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. Pin 1 .137 (3.48) MINIMUM Pin 1 .100 (2.54) (BSC) .367 (9.32) .387 (9.83) .057 (1.45) .068 (1.73) (NOTE 5) Solder Pad Dimensions -D- .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 P N G Blank TNY 278 G N - TL TL Plastic Surface Mount SMD-8C Plastic DIP-8C Pure Matte Tin (Pb-Free) RoHS compliant and Halogen Free (P package only) Standard Configuration Tape & Reel, 1000 pcs min./mult., G package only • Lead Finish • Tape & Reel and Other Options 21 www.powerint.com Rev. I 01/09 TNY274-280 22 Rev. I 01/09 www.powerint.com TNY274-280 Revision D E F G H I Notes Release final data sheet. Corrected figure numbers and references. 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. Updated line undervoltage current threshold to 2 mA. Updated BP/M Pin Charge current and Power Coefficient sections of Parameter Tables. Updated Part Ordering Information section with Halogen Free. Date 1/06 2/06 4/06 6/06 9/08 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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