LYT4216E Power Integrations, LYT4216E Datasheet
LYT4216E
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LYT4216E Summary of contents
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LYT4211-4218/4311-4318 LYTSwitch High Power LED Driver IC Family ™ Single-Stage Accurate Primary-Side Constant Current (CC) Controller with PFC for Low-Line Applications, TRIAC Dimming and Non-Dimming Options Product Highlights Better than ±5% CC regulation • TRIAC dimmable to less than 5% ...
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LYT4211-4218/4311-4318 Topology Isolation Isolated Flyback Yes Buck No Tapped Buck No Buck-Boost No Table 2. Performance of Different Topologies in a Typical Non-Dimmable 10 W Low-Line Design. Typical Circuit Schematic CONTROL Figure 3a. Typical Isolated Flyback Schematic Figure ...
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BYPASS (BP) BYPASS CAPACITOR SELECT I LIM 1 V VOLTAGE MONITOR (V) STOP LOGIC 3 LINE SENSE FEEDBACK (FB FEEDBACK SENSE DC REFERENCE (R) 6.4 V Figure 4. Functional Block Diagram. Pin Functional Description DRAIN ...
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LYT4211-4218/4311-4318 Functional Description A LYTSwitch device monolithically combines a controller and high-voltage power FET into one package. The controller provides both high power factor and constant current output in a single-stage. The LYTSwitch controller consists of an oscillator, feedback (sense ...
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D V CONTROL Figure 7. 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 current ...
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LYT4211-4218/4311-4318 Application Example 25 W TRIAC Dimmable High Power Factor LED Driver Design Example (DER-350) The circuit schematic in Figure 8 shows a TRIAC dimmable high power factor LED driver based on LYT4317E from the LYTSwitch family of devices. The ...
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Diode D6, C5, C9, R19 and R20 create the primary bias supply from an auxiliary winding on the transformer. Capacitor C8 provides local decoupling for the BYPASS pin of U1 which is the supply pin for the internal controller. During ...
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LYT4211-4218/4311-4318 Modified DER-350 25 W High Power Factor LED Driver for Non-Dimmable and Enhanced Line Regulation The circuit schematic in Figure 9 shows a high power factor LED driver based on a LYT4317 from the LYTSwitch family of devices. It ...
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REFERENCE Pin Resistance Value Selection The LYTSwitch family contains phase dimming devices, LYT4311-4318, and non-dimming devices, LYT4211-4218. The non-dimmable devices use a 24.9 kW ±1% REFERENCE pin resistor for best output current tolerance (over AC input voltage changes). The dimmable ...
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LYT4211-4218/4311-4318 350 Voltage 300 Current 250 200 150 100 100 0 150 200 250 Conduction Angle (°) Figure 10b. Resultant Waveforms Following Rectification of TRIAC Dimmer Output. Figure 11 shows undesired rectified bus voltage and current with ...
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Audible Noise Considerations for Use with Leading Edge Dimmers Noise created when dimming is typically created by the input capacitors, EMI filter inductors and the transformer. The input capacitors and inductors experience high di/dt and dv/dt every AC half-cycle as ...
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LYT4211-4218/4311-4318 Quick Design Checklist Maximum Drain Voltage Verify that the peak V does not exceed 670 V under all DS operating conditions including start-up and fault conditions. Maximum Drain Current Measure the peak drain current under all operation conditions including ...
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Absolute Maximum Ratings (1,4) DRAIN Pin Peak Current : LYT4x11 .................................1.37 A (5) LYT4x12 ................................ 2.08 A LYT4x13 .................................2.72 A LYT4x14 ................................ 4.08 A LYT4x15 ................................ 5.44 A LYT4x16 ................................ 6.88 A LYT4x17 ................................. 7.73 A LYT4x18 ................................ 9.00 A ...
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LYT4211-4218/4311-4318 Parameter Symbol Control Functions (cont.) I CD2 Drain Supply Current I CD1 VOLTAGE MONITOR Pin Line Overvoltage I Threshold OV VOLTAGE MONITOR V Pin Voltage V VOLTAGE MONITOR Pin I Short-Circuit Current V(SC) Remote ON/OFF V Threshold V(REM) FEEDBACK ...
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Parameter Symbol REFERENCE Pin REFERENCE Pin V Voltage R REFERENCE Pin I Current R Current Limit/Circuit Protection Full Power I LIMIT(F) Current Limit °C = 4.7 µ Reduced Power I Current Limit LIMIT(R) T ...
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LYT4211-4218/4311-4318 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: LYT4x11 0.18 LYT4x12 0.28 LYT4x13 0.38 LYT4x14 0.56 1000 LYT4x15 0.75 LYT4x16 1.00 LYT4x17 1.16 LYT4x18 1.55 100 0 0 100 200 300 DRAIN Pin Voltage (V) Figure 14. Drain Capacitance vs. Drain Pin ...
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LYT4211-4218/4311-4318 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 ...