tny375 Power Integrations, Inc., tny375 Datasheet
tny375
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tny375 Summary of contents
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... Maximizes MOSFET and magnetics power delivery • ON time extension – typically extends low line regulation range/ • hold-up time to reduce input bulk capacitance Self-biased: no bias winding required for TNY375-376; winding • required for TNY377-380 Frequency jittering reduces EMI fi lter costs • ...
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... TNY375-380 BYPASS/ MULTI-FUNCTION (BP/M) LINE UNDER-VOLTAGE 115 μA 25 μA ENABLE JITTER 2X 1 OSCILLATOR ENABLE/ 1.0 V UNDER- VOLTAGE (EN/UV) 6.4 V Figure 2 Functional Block Diagram. Pin Functional Description DRAIN (D) Pin: This pin is the power MOSFET drain connection. It provides internal operating current for both start-up and steady-state operation ...
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... When the MOSFET is on, the device operates from the energy stored in the bypass capacitor. Extremely low power consumption of the internal circuitry allows the TNY375 and TNY376 to operate continuously from current taken from the DRAIN pin. A bypass capacitor value of 0.1 μF is suffi cient for both high frequency decoupling and energy storage ...
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... TNY375-380 BYPASS/MULTI-FUNCTION Pin Undervoltage The BYPASS/MULTI-FUNCTION pin undervoltage circuitry disables the power MOSFET when the BYPASS/MULTI- FUNCTION pin voltage drops below 4 steady state operation. Once the BYPASS/MULTI-FUNCTION pin voltage drops below 4 steady state operation, it must rise back to 5. enable (turn-on) the power MOSFET. ...
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... At medium loads, more cycles will be skipped, the current limit will CLOCK DC MAX PI-2667-082305 I DRAIN 264 kHz). OSC V DRAIN Figure 8. Operation at Medium Loading (f TNY375-380 PI-4540-050407 132 kHz). OSC 5 Rev. B 11/07 ...
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... TNY375-380 V EN CLOCK D MAX I DRAIN V DRAIN Figure 9. Operation at Very Light Load (f 132 kHz). OSC 200 V 100 DC-INPUT BYPASS 0 400 200 V DRAIN Time (ms) Figure 10. Power-up With Optional External UV Resistor (4 MΩ) Connected to EN/UV Pin. 6 Rev. B 11/07 200 V 100 DC-INPUT BYPASS ...
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... The current limit is therefore increased to the maximum capability of their respective MOSFETs. The higher current limit level of the TNY380 is set to 1105 mA typical. The smaller current limit of the TNY375 is set to 325 mA. 7 Rev. B 11/07 ...
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... TNY375-380 D1 FR106 D2 F1 FR106 85-265 22 F VAC 400 1N4007 1N4007 TinySwitch-PK U1 TNY376PN Figure 14. TNY376PN, Four Output, 7 Peak Universal Input Power Supply. Applications Examples The circuit shown in Figure low cost universal AC input, four-output fl yback power supply utilizing a TNY376. The continuous output power is 7.5 W with a peak The output voltages are 3 and – ...
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... 3 R10 UF4007 3.9 M VR2 1N5251B TinySwitch- TNY380PN TNY375-380 230 VAC ± 15% 85-265 VAC LIMIT- LIMIT- LIMIT- LIMITPEAK LIMITPEAK PEAKred PEAKinc PEAKred 8.5 W 14.5 W 16.5 W 5.5 W 11 ...
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... Figure 15. The resistor in series with the OVP Zener also limits the maximum current into the BYPASS pin. Reducing No-load Consumption With the exception of the TNY375 and TNY376, a bias winding must be used to provide supply current for the IC. This has the additional benefi reducing the typical no-load consumption to < ...
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... TinySwitch-PK device as specifi the data sheet. Under low-line maximum power, a maximum TinySwitch-PK device SOURCE pin temperature of 110 °C is recommended to allow for these variations. Design Tools Up-to-date information on design tools can be found at the Power Integrations web site: www.powerint.com. TNY375-380 Maximize hatched copper areas ( ) for optimum heatsinking Y1- Output ...
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... TNY375-380 (1,4) Absolute Maximum Ratings DRAIN Voltage .............................................................................. -0 700 V DRAIN Peak Current: TNY375 ...........................................................0.6 A TNY376 ...........................................................0.8 A TNY377 ........................................................... 1.4 A TNY378 ............................................................2.2 A TNY379 ...........................................................2.9 A TNY380...........................................................4.3 A EN/UV Voltage ................................................................................... -0 EN/UV Current ........................................................... .................................. 100 mA BP/M Voltage .................................................. ....................................-0 Storage Temperature .............................................................-65 °C to 150 °C Operating Junction Temperature (2) ............................... -40 °C to 150 °C Thermal Impedance Thermal Impedance Package: (θ ...
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... TNY379PN °C J TNY379GN See Note F di/dt = 195 mA/μs TNY380PN °C J TNY380GN See Note F di/ mA/μs TNY375PN °C J TNY375GN See Note F di/ mA/μs TNY376PN °C J TNY376GN See Note F di/dt = 117 mA/μs TNY377PN °C J TNY377GN See Note F di/dt = 143 mA/μs TNY378PN ° ...
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... LIMITPEAK(TYP) TNY375-380PN f OSC(TYP °C J BP/M Capacitor = TNY375-380GN 0.1 μ × LIMITPEAKred(TYP) TNY375-380PN f OSC(TYP °C J BP/M Capacitor = TNY375-380GN 1 μ × LIMITPEAKinc(TYP) TNY375-380PN f OSC(TYP °C J BP/M Capacitor = TNY375-380GN 10 μF See Figure °C, See Note G J TNY375-377 °C ...
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... TNY379-380 J See Note 375 6 BP ° See Note G, I EN/ 6 EN/UV See Note ° °C J See Note °C J TNY375-380 Min Typ Max Units 7.8 9.0 11.7 13.5 Ω 5.2 6.0 7.8 9.0 3.9 4.5 5.8 6.7 2.6 3.0 3.9 4.5 50 100 200 μ ...
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... TNY375-380 NOTES: A. For all BP/M pin capacitor values accurate estimate of device controller current consumption at no-load, since operating frequency is so low under these S1 conditions. Total device consumption at no-load is the sum Since the output MOSFET is switching diffi cult to isolate the switching current from the supply current at the DRAIN. An alternative is to measure the BP/M pin current at 6 ...
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... Figure 18. Duty Cycle Measurement. www.powerint.com 470 Ω 470 Ω MΩ 150 V 0.1 μF DC MAX (internal signal) EN/UV V DRAIN OSC Figure 19. Output Enable Timing. 0.8 Figure 20. Current Limit Envelope 132 kHz. OSC TNY375-380 PI-4079-080905 EN/UV PI-2364-012699 Rev. B 11/07 17 ...
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... TNY377 117 mA/μs typical current limit TNY378 143 mA/μs specified for the appropriate BP/M TNY379 169 mA/μs capacitor. TNY380 195 mA/μ Normalized di/dt Scaling Factors: TNY375 1.0 TNY376 1.33 TNY377 2.33 TNY378 3.67 10 TNY379 4.87 TNY380 7. 100 200 300 400 500 Drain Voltage (V) vs ...
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... Package Identifi Plastic Surface Mount SMD-8C P Plastic DIP-8C • Lead Finish N Pure Matte Tin (Pb-Free) • Tape & Reel and Other Options Blank Standard Confi guration TL Tape & Reel, 1000 pcs min./mult., G Package only TNY375-380 1.2 1.0 0.8 0.6 0.4 0.2 0 -50 - 100 125 Junction Temperature (° ...
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... TNY375-380 ⊕ .004 (.10) -E- .240 (6.10) .260 (6.60) Pin 1 .100 (2.54) (BSC) .367 (9.32) -D- .387 (9.83) .125 (3.18) .145 (3.68) .032 (.81) .048 (1.22) .037 (.94) .053 (1.35) ⊕ .004 (.10) -E- .240 (6.10) .260 (6.60) Pin 1 .367 (9.32) -D- .387 (9.83) .125 (3.18) .145 (3.68) -T- SEATING PLANE .100 (2.54) BSC .048 (1.22) .053 (1.35) .014 (.36) ⊕ .010 (.25) M .022 (.56) 20 Rev ...
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... Notes TNY375-380 21 Rev. B 11/07 ...
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... TNY375-380 22 Rev. B 11/07 Notes www.powerint.com ...
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... Notes TNY375-380 23 Rev. B 11/07 ...
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... 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. ©2007, Power Integrations, Inc. ...