TNY253PN Power Integrations, TNY253PN Datasheet
TNY253PN
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TNY253PN Summary of contents
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TNY253/254/255 TinySwitch Energy Efficient, Low Power Off-line Switchers Product Highlights Lowest Cost, Low Power Switcher Solution • Lower cost than RCC, discrete PWM and other integrated/hybrid solutions • Cost effective replacement for bulky linear adapters • Lowest component count • ...
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TNY253/254/255 BYPASS 50 A OSCILLATOR CLOCK DC MAX 1 ENABLE Figure 2. Functional Block Diagram. Pin Functional Description DRAIN (D) Pin: Power MOSFET drain connection. Provides internal operating current for both start-up and steady-state operation. BYPASS ...
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Clock signal (at the beginning of each cycle high, then the power MOSFET is turned on (enabled) for that cycle, otherwise the power MOSFET remains in the ...
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TNY253/254/255 V EN CLOCK DC MAX I DRAIN V DRAIN Figure 4. TinySwitch Operation at Heavy Load. percentage of cycles will conduct to support the power consumption of the power supply. The response time of TinySwitch ON/OFF control scheme is ...
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V EN CLOCK DC MAX I DRAIN V DRAIN Figure 6. TinySwitch Operation at Light Load. 130 kHz Switching Frequency (TNY255) The switching frequency (with no cycle skipping) is set at 130 kHz. This allows the TNY255 to deliver 10 ...
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TNY253/254/255 + Optional 120-375 VDC 0.01 µ Figure 9. 1 Standby Circuit using TNY253. R1 150 Optional C1 240-375 0.01 F VDC 1 kV Figure 10 Standby Supply ...
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D1 D2 1N4005 1N4005 85-265 C2 C1 VAC 4.7 F 6.8 F RF1 400 V 400 V 10 Fusible R1 1 1N4005 1N4005 L1 560 H Figure 11. 3.6 W Constant Voltage-Constant Current Cellular Phone Charger Circuit. ...
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TNY253/254/255 is provided by L2 and C6. The output voltage is determined by the sum of the optocoupler U2 LED forward drop (~ 1 V) and Zener diode VR1 voltage. The resistor R8, maintains a bias current through the Zener ...
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Input Filter Capacitor + HV – S TOP VIEW TinySwitch Figure 13. Recommended PC Layout for the TinySwitch. accommodated by rating the output diode to handle the short circuit current. The short circuit current can be ...
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TNY253/254/255 DRAIN Voltage ....................................... - 0 700 V Peak DRAIN Current (TNY253/4) ........................400 mA Peak DRAIN Current (TNY255) ...........................530 mA ENABLE Voltage ........................................ - 0 ENABLE Current ...................................................100 mA BYPASS Voltage .......................................... -0.3 V ...
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Parameter Symbol CIRCUIT PROTECTION Current Limit I LIMIT Note F Initial Current I Limit INIT Leading Edge t Blanking Time LEB Current Limit t Delay ILD Thermal Shutdown Temperature Thermal Shutdown Hysteresis OUTPUT ON-State R DS(ON) Resistance OFF-State Drain I ...
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TNY253/254/255 Parameter Symbol OUTPUT (cont.) DRAIN Supply Voltage Output Enable t Delay EN Output Disable t Setup Time DST NOTES: A. For a threshold with a negative value, negative hysteresis is a decrease in magnitude of the corresponding threshold. B. ...
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HV 90% DRAIN VOLTAGE 10 Figure 15. TinySwitch Duty Cycle Measurement. Typical Performance Characteristics BREAKDOWN vs. TEMPERATURE 1.1 1.0 0.9 -50 - 100 125 150 Junction Temperature (°C) DC MAX ...
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TNY253/254/255 Typical Performance Characteristics (Continued) CURRENT LIMIT vs. TEMPERATURE 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 -50 - Junction Temperature (°C) TNY254 CURRENT LIMIT vs. di/dt 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 ...
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Typical Performance Characteristics (Continued) C OSS vs. DRAIN VOLTAGE 100 200 DRAIN Voltage (V) DIM inches mm A 0.367-0.387 9.32-9.83 B 0.240-0.260 6.10-6.60 C 0.125-0.145 3.18-3.68 G 0.015-0.040 0.38-1.02 H 0.120-0.140 3.05-3.56 J1 0.057-0.068 1.45-1.73 J2 0.014-0.022 ...
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TNY253/254/255 D S .004 (.10 - G08A .010 (.25 4/03 SMD-8 .046 .060 .060 .046 Pin 1 .086 .186 -D- .286 ...
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Notes TNY253/254/255 D 17 4/03 ...
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TNY253/254/255 D 18 4/03 Notes ...
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Notes TNY253/254/255 D 19 4/03 ...
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... PATENT INFORMATION 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, nor does it convey any license under its patent rights or the rights of others. ...