L6564T STMicroelectronics, L6564T Datasheet
L6564T
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L6564T Summary of contents
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... SSOP10 package Figure 1. Block diagram January 2012 10-pin transition-mode PFC controller Applications ■ PFC pre-regulators for: – High-end AC-DC adapter/charger – Desktop PC, server, web server – IEC61000-3-2 or JEITA-MITI compliant SMPS ■ SMPS for LED luminaires Doc ID 022671 Rev 1 L6564T SSOP10 1/33 www.st.com 33 ...
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... Typical electrical performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 6 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 6.1 Overvoltage protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 6.2 Feedback failure protection (FFP 6.3 Voltage feedforward . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 6.4 THD optimizer circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 6.5 Inductor saturation detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 6.6 Power management/housekeeping functions . . . . . . . . . . . . . . . . . . . . . . 25 7 Application examples and ideas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 8 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 9 Ordering codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 10 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 2/33 Doc ID 022671 Rev 1 L6564T ...
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... L6564T List of tables Table 1. Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Table 2. Thermal data Table 3. Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Table 4. Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Table 5. Summary of L6564 idle states . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Table 6. SSO10 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Table 7. Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Table 8. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Doc ID 022671 Rev 1 List of tables 3/33 ...
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... THD optimization: standard TM PFC controller (left side) and L6564T (right side Figure 32. Effect of boost inductor saturation on the MOSFET current and detection method . . . . . . 24 Figure 33. Interface circuits that let DC-DC converter's controller IC disable the L6564T Figure 34. Demonstration board EVL6564-100W, wide-range mains: electrical schematic . . . . . . . . 27 Figure 35. ...
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... L6564T 1 Description The L6564T is a current-mode PFC controller operating in transition mode (TM) and represents the compact version of the L6563S as it embeds the same driver, reference and control stages in a very compact 10-pin SO package. The highly linear multiplier, along with a special correction circuit that reduces crossover distortion of the mains current, allows wide-range-mains operation with an extremely low THD even over a large load range ...
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... Analog inputs and outputs 7 Zero current detector max. current 5 Maximum withstanding voltage range test condition: CDF-AEC-Q100-002 “human body model” Acceptance criteria: “normal performance” Parameter = 50 °C A Doc ID 022671 Rev 1 L6564T Value Unit Self-limited V Self-limited V -0 -10 (source (sink) +/- 1750 ...
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... L6564T 3 Pin connection Figure 2. Pin connection Table 3. Pin description n° Name Inverting input of the error amplifier. The information on the output voltage of the PFC pre- regulator is fed into the pin through a resistor divider. 1 INV The pin normally features high impedance. Output of the error amplifier. A compensation network is placed between this pin and INV (pin 1) to achieve stability of the voltage control loop and ensure high power factor and low THD ...
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... V to avoid excessive gate voltages. Supply voltage of both the signal part of the IC and the gate driver. Sometimes a small bypass 10 Vcc capacitor (0.1 µF typ.) to GND might be useful to get a clean bias voltage for the signal part of the IC. 8/33 Function Doc ID 022671 Rev 1 L6564T ...
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... L6564T 4 Electrical characteristics T = -40 to 125 ° MΩ between pin V FF Table 4. Electrical characteristics Symbol Parameter Supply voltage Vcc Operating range Vcc Turn-on threshold On Vcc Turn-off threshold Off Vcc Vcc for resuming from latch restart Hys Hysteresis V Zener voltage Z Supply current ...
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... MULT VFF 2.6 V PFC_OK PFC_OK (1) Voltage rising (1) Voltage falling (1) Voltage falling (1) Voltage falling °C (1) Voltage rising (1) Voltage rising ° PFC_OK PFC_OK_S Doc ID 022671 Rev 1 L6564T Min. Typ. Max. Unit 1 MHz 1 4.5 mA 5.7 6.2 6.7 2.3 2.4 2.5 V 2.1 2.25 2.4 1.6 1.7 1 µ ...
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... L6564T Table 4. Electrical characteristics (continued) Symbol Parameter Voltage feedforward V Linear operation range VFF ∆V Dropout V -V MULTpk VFF ∆V Line drop detection thresh. VFF ∆V Line drop detection thresh. VFF R Internal discharge resistor DISCH V Disable threshold DIS V Enable threshold EN Zero current detector ...
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... Doc ID 022671 Rev 1 IC consumption vs Operating Quiescent Disabled or d uring OV P VCC=12V Co = 1nF f =70kHz L atched off Before Start up - 100 125 150 Tj (C) Startup and UVLO vs CC-ON VCC-OFF 100 125 Tj (C) L6564T 175 150 175 ...
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... L6564T Figure 7. Feedback reference -50 - (C) Figure 9. UVLO saturation vs 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 -50 - (C) Figure VCC = 12V -50 100 125 150 175 Figure 10. OVP levels vs VCC = ...
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... Source current 100 125 150 175 -50 Doc ID 022671 Rev 1 J VCC = 12V VCOMP =Upp er clamp -50 - 100 125 Tj (C) J Upper Clamp VCC = 12V Izcd = ± 2.5mV Lower Cl amp - 100 125 Tj (C) L6564T 150 175 150 175 ...
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... L6564T Figure 15. R discharge vs -50 - (C) Figure 17 dropout vs. T MULTpk VFF - - -50 - (C) Figure 19. PFC_OK FFD threshold vs 1.9 1.8 1.7 1.6 1.5 1.4 -50 - (C) Figure 16. Line drop detection threshold vs. T ...
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... VCOMP = 4V VMUL T = VFF = 1V 12.75 12. 7 12.65 100 125 150 175 -50 Doc ID 022671 Rev Upper vo ltage MULT ( 20V - 100 125 150 Tj (C) L6564T V COM 175 ...
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... L6564T Figure 24. Gate drive output saturation vs -50 - (C) Figure 26. Startup timer period vs. T 450 400 350 300 250 200 150 100 50 0 -50 - (C) Figure 25. Delay to output vs 300 High level 250 200 ...
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... INV and PFC_OK pins. Figure 27. Output voltage setting, OVP and FFP functions: internal block diagram 18/33 Figure 27 = 434 V. Select 8.8 MΩ; then 8.8 MΩ ·2.5/(434-2. Doc ID 022671 Rev 1 L6564T ). This divider is selected so that ...
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... IC is above the UVLO threshold. To restart the system it is necessary to recycle the input power, so that the Vcc voltage of the L6564T goes below 6 V. The pin PFC_OK doubles its function as a not-latched IC ‘Disable’: a voltage below 0.23 V shuts down the IC, reducing its consumption below 2 mA ...
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... Clearly a trade-off was required. The L6564T realizes a NEW voltage feed forward that, with a technique that makes use of just two external parts, strongly minimizes this time constant trade-off issue whichever voltage change occurs on the mains, both surges and drops ...
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... L6564T The twice-mains-frequency (2 peak amplitude that, with good approximation, is given by: where f is the line frequency. The amount of 3rd harmonic distortion introduced by this L ripple, related to the amplitude of its 2 Figure 29 shows a diagram that helps choose the time constant R amount of maximum desired 3rd harmonic distortion. Note that there is a minimum value for the time constant R occur ...
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... Application information 6.4 THD optimizer circuit The L6564T 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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... L6564T Figure 31. THD optimization: standard TM PFC controller (left side) and L6564T (right side) Rectified mains voltage Imains Input current Essentially, the circuit artificially increases the ON-time of the power switch with a positive offset added to the output of the multiplier in the proximity of the line voltage zero-crossings. ...
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... To cope with a saturated inductor, the L6564T is provided with a second comparator on the current sense pin (CS, pin 4) that stops the IC if the voltage, normally limited within 1.1 V, exceeds 1.7 V. After that, the IC is attempted to restart by the internal starter circuitry ...
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... PFC_OK pin (see details). This line is typically used to allow the PWM controller of the cascaded DC-DC converter to shut down the L6564T in case of light load and to minimize the no-load input consumption. Should the residual consumption of the chip be an issue also possible to cut down the supply voltage ...
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... COMP < 2.4 V Burst mode Vcs > V Doubled T CS_th Doc ID 022671 Rev 1 Typical IC Restart condition consumption Vcc > Vcc On Vcc < Vcc then restart Vcc > Vcc On PFC_OK > V PFC_OK_E RUN > PFC_OK < V PFC_OK_R COMP > 2.4V Auto restart start L6564T 90 µA 180 µA 1.5 mA 1.5 mA 2.2 mA 2.2 mA 2.2 mA ...
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... L6564T 7 Application examples and ideas Figure 34. Demonstration board EVL6564-100W, wide-range mains: electrical schematic Application examples and ideas Doc ID 022671 Rev 1 27/33 ...
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... EN61000-3- 2 class- D limits 10 1 0.1 0.01 0.001 0.0001 Figure 38. L6564 100W TM PFC: input current Doc ID 022671 Rev 1 with JEITA-MITI standard Measur ed value JEITA-MITI Class-D lim its Harm onic Order [n] waveform @100 V- 100 W load L6564T ...
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... L6564T 8 Package mechanical data In order to meet environmental requirements, ST offers these devices in different grades of ® ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are available at: www.st.com. ECOPACK trademark. Table 6. SSO10 mechanical data Dim ...
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... Package mechanical data Figure 39. SSO10 package dimensions 30/33 Doc ID 022671 Rev 1 L6564T 8140761 rev. A ...
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... L6564T 9 Ordering codes Table 7. Ordering information Order codes L6564TD L6564TDTR Package SSO10 Doc ID 022671 Rev 1 Ordering codes Packing Tube Tape and reel 31/33 ...
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... Revision history 10 Revision history Table 8. Document revision history Date 18-Jan-2012 32/33 Revision 1 Initial release Doc ID 022671 Rev 1 L6564T Changes ...
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... L6564T 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. ...