LNK420LG Power Integrations, LNK420LG Datasheet
LNK420LG
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LNK420LG Summary of contents
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LNK403-410/413-420 LinkSwitch-PH LED Driver IC Family ™ Single-Stage PFC, Primary-Side Constant Current Control and TRIAC Dimming/Non-Dimming Options Product Highlights Dramatically Simplifi es Off-line LED Drivers Single-stage combination of power factor correction and • accurate constant-current (CC) output Enables very long ...
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LNK403-410/413-420 BYPASS (BP) BYPASS CAPACITOR SELECT I LIM 1 V VOLTAGE MONITOR (V) STOP LOGIC 3-V T UV/OV LINE SENSE FEEDBACK (FB FEEDBACK SENSE DC REFERENCE (R) 6.4 V Figure 3. Functional Block Diagram. Pin Functional Description ...
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Functional Description A LinkSwitch-PH device monolithically integrates a controller and high-voltage power FET into one package. The controller implements both high power factor and a constant current output in a single stage. The LinkSwitch-PH controller consists of an oscillator, feedback ...
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LNK403-410/413-420 D V CONTROL Figure 6. Remote ON/OFF VOLTAGE MONITOR pin Control 5.9 V Regulator/Shunt Voltage Clamp The internal 5.9 V regulator charges the bypass capacitor connected to the BYPASS pin to 5 drawing a ...
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Application Example 14 W TRIAC Dimmable High Power Factor LED Driver Design Example The circuit schematic in Figure 7 shows a TRIAC dimmable high power-factor LED driver based on LNK406EG from the LinkSwitch-PH family of devices. It was optimized to ...
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LNK403-410/413-420 Diode D3 and VR1 clamp the drain voltage to a safe level due to the effects of leakage inductance. Diode D4 is necessary to prevent reverse current from flowing through U1 for the period of the rectified AC input ...
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W High Power Factor Non-Dimmable LED Driver Design Example with Enhanced Line Regulation The circuit schematic in Figure 8 shows a high power-factor LED driver based on a LNK413EG from the LinkSwitch-PH family of devices. It was optimized to ...
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LNK403-410/413-420 start- charged from an internal high-voltage current source tied to the device DRAIN pin. Once the bias voltage has risen into regulation the operating supply current is provided via R10. Diode D4 prevents U1 ...
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Zener clamp. The RCD clamp is more cost effective than the Zener clamp but requires more careful design to ensure that the maximum drain voltage does not exceed the power FET breakdown voltage. ...
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LNK403-410/413-420 350 Voltage 300 Current 250 200 150 100 100 0 150 200 250 Conduction Angle (°) Figure 10. Example of Phase Angle Dimmer Showing Erratic Firing. Start by adding a bleeder circuit. Add a 0.44 mF ...
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Layout Considerations Primary-Side Connections Use a single point (Kelvin) connection at the negative terminal of the input filter capacitor for the SOURCE pin and bias returns. This improves surge capabilities by returning surge currents from the bias winding directly to ...
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LNK403-410/413-420 S S BR1 Bridge Rectifier Figure 13. RD-193 7 W Layout Example, Bottom Layer. Quick Design Checklist Maximum Drain Voltage Verify that the peak V does not exceed 725 V under all DS operating conditions including start up and ...
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Absolute Maximum Ratings (1,4) DRAIN Pin Peak Current : LNK403, LNK413 ...................1.37 A (5) LNK404, LNK414 ...................2.08 A LNK405, LNK415 ...................2.72 A LNK406, LNK416 .................. 4.08 A LNK407, LNK417 .................. 5.44 A LNK408, LNK418 .................. 6.88 A LNK409, LNK419 ................... ...
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LNK403-410/413-420 Parameter Symbol Control Functions (cont.) I CD2 Drain Supply Current I CD1 VOLTAGE MONITOR Pin Line Brown-In I Threshold Current UV+ Line Brown-Out I Threshold Current UV- Line Brown-In/Out I Hysteresis UV(H) Line Overvoltage I Threshold OV VOLTAGE MONITOR ...
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Parameter Symbol Auto-Restart (cont.) SOA Minimum Switch t ON-Time ON(SOA) FEEDBACK Pin Current During I FB(AR) Auto-Restart REFERENCE Pin REFERENCE Pin V Voltage R REFERENCE Pin I Current R Current Limit/Circuit Protection Full Power I Current Limit LIMIT( ...
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LNK403-410/413-420 Parameter Symbol Output ON-State Resistance R DS(ON) OFF-State Drain I Leakage Current DSS Breakdown Voltage BV DSS Minimum Drain Supply Voltage Rise Time t R Fall Time t F NOTES: A. For specifications with negative values, a negative temperature ...
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Typical Performance Characteristics 10000 Scaling Factors: LNK403, LNK413 0.18 LNK404, LNK414 0.28 LNK405, LNK415 0.38 LNK406, LNK416 0.56 1000 LNK407, LNK417 0.75 LNK408, LNK418 1.00 LNK409, LNK419 1.16 LNK410, LNK420 1.55 100 0 0 100 200 300 DRAIN Pin Voltage ...
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LNK403-410/413-420 2 0.403 (10.24) A 0.397 (10.08 0.325 (8.25) 0.320 (8.13) Pin #1 I.D. 0.070 (1.78) Ref. 0.050 (1.27) 3 FRONT VIEW 10° Ref. All Around 0.021 (0.53) 0.019 (0.48) 0.048 (1.22) 0.046 (1.17) 0.378 (9.60) Ref. 0.019 ...
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A 0.397 (10.08) B 0.325 (8.25) 2 0.320 (8.13 Pin 1 I.D. 0.070 (1.78) Ref. 0.050 (1.27) BOTTOM VIEW Exposed pad hidden 1 7 0.060 (1.52) Ref. 0.019 (0.48) Ref. 0.378 (9.60) Ref. END VIEW ...
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... 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 ...