LNK354P Power Integrations, LNK354P Datasheet
LNK354P
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LNK354P Summary of contents
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LNK353/354 LinkSwitch-HF Family Enhanced, Energy Efficient, Low Power Off-Line Switcher IC Product Highlights Features Optimized for Lowest System Cost • Fully integrated auto-restart for short-circuit and open loop protection • Self-biased supply – saves transformer auxiliary winding and associated bias ...
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LNK353/354 BYPASS (BP) 6.3 V JITTER OSCILLATOR FEEDBACK 1. (FB) 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 (BP) ...
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LinkSwitch-HF Functional Description LinkSwitch-HF combines a high voltage power MOSFET switch with a power supply controller in one device. Unlike conventional PWM (pulse width modulator) controllers, LinkSwitch-HF uses a simple ON/OFF control to regulate the output voltage. The LinkSwitch-HF controller ...
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... C2 4.7 µF 400 V R4 5.1 kΩ LinkSwitch-HF U1 LNK354P C4 100 nF Output rectification is provided by Schottky diode D6. The low forward voltage provides high efficiency across the operating range and the low ESR capacitor C6 minimizes output voltage ripple. In constant voltage (CV) mode, the output voltage is set by the Zener diode VR1 and the emitter-base voltage of PNP transistor Q1 ...
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Key Application Considerations LinkSwitch-HF Design Considerations Output Power Table Data sheet maximum output power table (Table 1) represents the maximum practical continuous output power level that can be obtained under the following assumed conditions: 1. The minimum DC input voltage ...
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... Under low line, maximum power, does not exceed a maximum LinkSwitch-HF SOURCE pin temperature of DS 100 °C is recommended to allow for these variations. Design Tools Up-to-date information on design tools can be found at the Power Integrations website: www.powerint.com. Input Filter Capacitor Y1- Capacitor m PRI ...
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DRAIN Voltage .................................. ................ -0 700 V Peak DRAIN Current......................................400 mA (750 mA) FEEDBACK Voltage ................................................ -0 FEEDBACK Current .................................................... 100 mA BYPASS Voltage...................................................... -0 Storage Temperature .......................................... -65 °C ...
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LNK353/354 Parameter Symbol CONTROL FUNCTIONS (cont) BYPASS Pin I Supply Current BPSC CIRCUIT PROTECTION I LIMIT Current Limit (See Note E) Minimum On Time t ON(MIN) Leading Edge t Blanking Time LEB Thermal Shutdown T SD Temperature Thermal Shutdown T ...
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Parameter Symbol OUTPUT (cont) DRAIN Supply Voltage Output Enable t Delay EN Output Disable t Setup Time DST Auto-Restart t ON-Time AR Auto-Restart Duty DC Cycle AR NOTES: A. Total current consumption is the sum of I switching) and the ...
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LNK353/354 Figure 7. LinkSwitch-HF General Test Circuit 90% DRAIN VOLTAGE 10 Figure 8. LinkSwitch-HF Duty Cycle Measurement 2/05 470 Ω ...
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Typical Performance Characteristics 1.1 1.0 0.9 -50 - 100 125 150 Junction Temperature (°C) Figure 10. Breakdown vs. Temperature. 1.4 1.2 1.0 0.8 Normalized di/dt 0.6 0.4 0 Temperature (°C) Figure 12. ...
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LNK353/354 Typical Performance Characteristics (cont.) PART ORDERING INFORMATION LNK 354 2/05 1000 100 100 200 300 400 500 Drain Voltage (V) Figure 16. C vs. Drain Voltage. OSS LinkSwitch Product Family ...
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D S .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) ...
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LNK353/354 14 F 2/05 Notes ...
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Notes LNK353/354 15 F 2/05 ...
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... 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 ...