L6563A STMicroelectronics, L6563A Datasheet
L6563A
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L6563A Summary of contents
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... L6563A L6563ATR INV COMP MULT Ideal diode - MULTIPLIER + 2.5V Voltage VOLTAGE references - + from REGULATOR VFF Vbias INDUCTOR (INTERNAL SUPPLY BUS) SATURATION DETECTION ( not in L6563A ) R Q UVLO R1 COMPARATOR S + UVLO - R2 V REF2 ZERO CURRENT DETECTOR - + DISABLE 9 PWM_STOP PWM_LATCH Rev 4 L6563A SO-14 Package SO-14 ...
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... Voltage Feedforward . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 6.4 THD optimizer circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 6.5 Tracking Boost function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 6.6 Inductor saturation detection (L6563 only 6.7 Power management/housekeeping functions . . . . . . . . . . . . . . . . . . . . . . 28 6.8 Summary of L6563/A idle states . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 7 Application examples and ideas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 8 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 9 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 2/39 L6563 - L6563A ...
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... In the L6563 a protection is added to stop the PFC stage in case the boost inductor saturates. This function is not included in the L6563A. This is the only difference between the two part numbers. An interface with the PWM controller of the DC-DC converter supplied by the PFC pre- ...
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... MULT (pin 3), compensates the control loop gain dependence on the mains voltage. Never connect the pin directly to GND. 4/39 INV 1 14 COMP 2 13 MULT VFF 5 10 TBO 6 9 PFC_OK 7 8 Description 2 function. A capacitor and a parallel resistor must be L6563 - L6563A Vcc GD GND ZCD RUN PWM_STOP PWM_LATCH ...
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... L6563 - L6563A Table 2. Pin description (continued) Pin N° Name Tracking Boost function. This pin provides a buffered VFF voltage. A resistor connected between this pin and GND defines a current that is sunk from pin INV (pin 1). In this way, 6 TBO the output voltage is changed proportionally to the mains voltage (tracking boost). If this function is not used leave this pin open ...
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... Junction temperature operating range J T Storage temperature STG 3 Thermal data Table 4. Thermal data Symbol R Maximum thermal resistance junction-ambient thJA 6/39 Parameter = 1 mA) pin = 50°C A Parameter L6563 - L6563A Value Unit self-limited V -0 Self-limited -10 (source (sink) 0.75 W -25 to 150 °C -55 to 150 °C ...
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... L6563 - L6563A 4 Electrical characteristics Table 5. Electrical characteristics ( -25°C < T < +125° 12V and GND; unless otherwise specified) Symbol Parameter Supply voltage Vcc Operating range Vcc Turn-on threshold On Vcc Turn-off threshold Off Hys Hysteresis V Zener Voltage Z Supply current I Start-up current start-up I Quiescent current ...
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... INV I = 0.5 mA SOURCE ( 0.5 mA SINK Upper clamp, COMP =0.5V VFF MULT MULT VFF MULT VFF (2) (4) ( kΩ to GND FF L6563 - L6563A =1µF between pin Min Typ Max Unit 9 9 MHz -2 -3 2.5 4.5 mA 5.7 6.2 6.7 V 2.1 2.25 2 µA 100 200 ...
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... L6563 - L6563A Table 5. Electrical characteristics (continued) ( -25°C < T < +125° 12V and GND; unless otherwise specified) Symbol Parameter Zero current detector V Upper clamp voltage ZCDH V Lower clamp voltage ZCDL Arming voltage V ZCDA (positive-going edge) Triggering voltage V ZCDT (negative-going edge) I Input bias current ...
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... RUN (2) Voltage falling (2) Voltage rising GDsource I = 200 mA GDsource I = 200 mA GDsink I = 5mA; Vcc = 20V GDsource Vcc=0 to Vcc , I =10mA On sink ⋅ MULT ⋅ ------------------------------------------------------------ - L6563 - L6563A =1µF between pin V FF Min Typ Max -1 0.5 0.52 0.54 0.56 0.6 0.64 75 150 300 2 2 – ...
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... L6563 - L6563A 5 Typical electrical performance Figure 4. Supply current vs supply voltage Icc Icc (mA) (mA 0.5 0.5 0.1 0.1 0.05 0.05 0.01 0.01 0.005 0.005 Vcc(V) Vcc(V) Figure 6. IC consumption vs T Icc Icc 10 10 (mA) (mA Vcc = 12 V Vcc = 12 V 0.5 0 kHz kHz 0.2 ...
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... Vpin4 Vpin4 2.0 2.0 (V) (V) Vcc = 12 V Vcc = 12 V 1.8 1.8 1.6 1.6 1.4 1.4 1.2 1.2 1.0 1.0 100 100 150 150 L6563 - L6563A J Vcc = 12 V Vcc = Upper clamp = Upper clamp COMP COMP 1 1 -50 - 100 100 Tj (°C) Tj (°C) mains voltage phase angle ...
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... L6563 - L6563A Figure 16. Multiplier characteristics @ (pin 4) (pin (V) (V) upper voltage upper voltage Vcc = 12 V Vcc = 12 V clamp clamp ° ° 0.8 0.8 0.6 0.6 0.4 0.4 0.2 0 0.2 0.2 0.4 0.4 0.6 0.6 0.8 0 (pin 3) (V) (pin 3) (V) MULT MULT Figure 18. Multiplier characteristics @ V ...
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... Figure 27. PWM_STOP low saturation Vpin9 Vpin9 (V) (V) Vcc = 12 V Vcc = 12 V Vpin3 Vpin3 100 100 150 150 L6563 - L6563A J 1.0 1.0 Vcc = 12 V Vcc = 12 V 0.8 0 0.6 0.6 OFF OFF 0.4 0.4 0.2 0.2 0.0 0.0 ...
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... L6563 - L6563A Figure 28. PFC_OK thresholds vs T Vpin7 Vpin7 3.0 3.0 (V) (V) 2.0 2.0 Latch-off Latch-off 1.0 1.0 0.5 0.5 0.3 0 0.2 0.2 OFF OFF 0.1 0.1 -50 - (°C) Tj (°C) Figure 30. Start-up timer vs T Tstart Tstart 150 150 (µs) (µs) Vcc = 12 V Vcc = 12 V ...
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... The output overvoltage that is able to trigger the OVP function is then: Equation 3 16/39 V – 2 ------- - = --------------------- - ∆ V – 2 --------------------------------------- - ∆V = I’ - I’ /R1 will flow through the compensation network ∆ · 20 · L6563 - L6563A of the PFC pre-regulator O 2.5 O ...
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... L6563 - L6563A An important advantage of this technique is that the overvoltage level can be set independently of the regulated output voltage: the latter depends on the ratio R2, the former on the individual value of R1. Another advantage is the precision: the tolerance of the detection current is 15%, which means 15% tolerance on the ∆V much smaller than Vo, the tolerance on the absolute value will be proportionally reduced. = 400V, ∆ ...
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... RMS voltage, feeding this voltage into a squarer/divider circuit (1/V and providing the resulting signal to the multiplier that generates the current reference for the inner current control loop (see 18/39 of the overall open-loop gain because the gain 264 Vac means c Figure 35). L6563 - L6563A Figure 34). This divider 2 corrector) ...
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... L6563 - L6563A Figure 35. Voltage feedforward: squarer-divider (1/V characteristic E/A output current (V COMP reference (Vcsx) MULTIPLIER 2 1/V L6563 L6563A VFF this way a change of the line voltage will cause an inversely proportional change of the half sine amplitude at the output of the multiplier (if the line voltage doubles the amplitude of ...
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... L 2V ∆ MULTpk V = --------------------------------------- component, will be: L 100 --------------------------------- 3 2π harmonic distortion. Always connect function of 3 harmonic distortion introduced in the input [ 0.01 0.1 L6563 - L6563A is triangular with a peak-to harmonic distortion introduced by this ·C based on the FF FF and the FF Figure 35), pin is FF ...
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... L6563 - L6563A 6.4 THD optimizer circuit The L6563/A is provided with a special circuit that reduces the conduction dead-angle occurring to the AC input current near the zero-crossings of the line voltage (crossover distortion). In this way the THD (Total Harmonic Distortion) of the current is considerably reduced. A major cause of this distortion is the inability of the system to transfer energy effectively when the instantaneous line voltage is very low ...
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... PFC pre-regulator - thus reducing the effectiveness of the optimizer circuit. 22/39 Input current Imains Input current Vdrain MOSFET's drain voltage pin (see Section 6.3 on page 18 FF Figure 38, where the key waveforms of a standard TM L6563 - L6563A Input current Rectified mains voltage Vdrain MOSFET's drain voltage section have ...
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... L6563 - L6563A 6.5 Tracking Boost function In some applications it may be advantageous to regulate the output voltage of the PFC pre- regulator so that it tracks the RMS input voltage rather than at a fixed value like in conventional boost pre-regulators. This is commonly referred to as "tracking boost" or "follower boost" approach. ...
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... R 2 Vin 2 ⋅ ⋅ -------------------------------------------------------------------------------------------------- Vin ⋅ Vo – 2 Vin – Vin 2 1 ⋅ ⋅ ⋅ ----------------------------- - = T Vo – L6563 - L6563A Vox Vo – 2 ⋅ -------------------------- - Vin 1 Vo – This will result in a limitation of the = Vin ) x clamp 6 Vin – Vin ⋅ – Vo – 2 ...
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... L6563 - L6563A 5. Check that the maximum current sourced by the TBO pin (pin 6) does not exceed the maximum specified (0.25mA): Equation 10 In the following Mathcad® sheet example, the calculation is shown for the circuit illustrated in Figure function. Design data Vin := 88V 1 Vin ...
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... Vo – ⋅ T ← ⋅ ⋅ MULTpk ← TBO MULTpk ⎛ ⎞ R1 ⋅ 2 ------- - + V ⎝ ⎠ R2 100 150 L6563 - L6563A R2 = 4.762 Vin ⋅ 2.114 0.142 mA TBOmax Vo(Vin ) = 200V 1 < ) Vo(Vin ) = 385V 3 MULTpk R1 ⋅ ------- - Vo(Vin ) = 391.307V TBO Vin 2 Vin x 200 250 Vin Ω ...
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... L6563 - L6563A Figure 40. 80W, wide-range-mains PFC pre-regulator with tracking boost function active BRIDGE 1N4007 0.22 µF + FUSE 400V 4A/250V - Vac (88V to 264V) R2 51.1 k Ω Figure 41. Tracking boost and voltage feedforward blocks Vout INV 6.6 Inductor saturation detection (L6563 only) Boost inductor's hard saturation may be a fatal event for a PFC pre-regulator: the current upslope becomes so large (50-100 times steeper, see sense propagation delay the current may reach abnormally high values ...
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... PWM controller go below their respective UVLO thresholds. System safety will be considerably increased. To better suit the applications where a certain level of saturation of the boost inductor needs to be tolerated, the L6563A does not support this protection function. Figure 42. Effect of boost inductor saturation on the MOSFET current and detection method 6.7 Power management/housekeeping functions A special feature of this IC is that it facilitates the implementation of the " ...
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... L6563 - L6563A Figure 43. Interface circuits that let DC-DC converter’s controller IC disable the L6563/A at light load 16 ST-BY L5991/A 4 Vref 27 k Ω 100 nF BC557 100 150 k Ω k Ω 150 k Ω BC557 10 k Ω 8.2 V Vcc 16 2.2 k L6668 14 PFC_STOP The third communication line is the PWM_STOP pin (pin 9), which works in conjunction with the RUN pin (pin 10) ...
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... Another problem is the spurious restarts that may occur during converter power down and that cause the output voltage of the converter not to decay to zero monotonically. For these reasons it is usually preferable to shutdown the unit in case of brownout. 30/39 Figure 45 lets the DC-DC converter start-up when L6563 - L6563A ...
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... L6563 - L6563A IC shutdown upon brownout can be easily realized as shown in the left is of general use, the one on the right can be used if the bias levels of the multiplier and the R ·C time constant are compatible with the specified brownout level and with the FF FF specified holdup time respectively ...
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... L6563 TP2 100 nF C9 470 nF R20 47 kΩ R14 C2 R17 22.1 kΩ 33 µF 390 kΩ 25V L6563 - L6563A NTC D1 2.5 Ω STTH2L06 R9A 1 MΩ µF 39 kΩ R12A R9B 1 MΩ 1 MΩ C12 220 R12A STP8NM50 1 MΩ Ω ...
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... L6563 - L6563A Figure 49. EVAL6563-80W: PCB layout, soldering side (Top view) Table 7. EVAL6563-80W: Evaluation results at full load Vin (V ) Pin ( 85.3 115 84.9 135 83.7 180 83.5 230 85.2 265 85.0 Note: Measurements done with the line filter shown in Table 8. EVAL6563-80W: Evaluation results at half load ...
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... Application examples and ideas Figure 50. EVAL6563-80W: Vout vs. Vin relationship (tracking boost) Figure 51. Line filter (not tested for EMI compliance) used for EVAL6563-80W evaluation 34/39 L6563 - L6563A ...
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... L6563 - L6563A Figure 52. 250W, wide-range-mains PFC pre-regulator with fixed output voltage R1A 820 k R1B C1 B1 820 k 1 µF KBU8M + FUSE 400V 8A/250V Vac - 88V to 264V 10nF Boost Inductor (L1) Spec ETD29x16x10 core, 3C85 ferrite or equivalent 1.5 mm gap for 150 µH primary inductance Primary: 74 turns 20xAWG30 ( Secondary: 8 turns 0 ...
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... Application examples and ideas Figure 54. Demagnetization sensing without auxiliary winding V inac Figure 55. Enhanced turn-off for big MOSFET driving L6563A 36/39 C ZCD R ZCD ZCD 9 L6563 L6563A Vcc DRIVER L6563 12 GND L6563 - L6563A V out R load Q BC327 Rs ...
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... L6563 - L6563A 8 Package mechanical data In order to meet environmental requirements, ST offers these devices in ECOPACK® packages. These packages have a Lead-free second level interconnect . The category of second level interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label ...
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... Revision 1 First issue 2 Changed the maturity from “Preliminary data” to “Datasheet” Added new part number L6563A 3 Updated the Section 4 on page 7 document has been reformatted Replaced block diagram, added 4 editor changes. L6563 - L6563A Changes (Table 2) & ...
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... L6563 - L6563A Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...