Datasheet
Table Of Contents
- Figure 1. Block diagram
- 1 Description
- 2 Maximum ratings
- 3 Pin connection
- 4 Electrical characteristics
- 5 Typical electrical performance
- Figure 3. IC consumption vs. VCC
- Figure 4. IC consumption vs. TJ
- Figure 5. VCC Zener voltage vs. TJ
- Figure 6. Startup and UVLO vs. TJ
- Figure 7. Feedback reference vs. TJ
- Figure 8. E/A output clamp levels vs. TJ
- Figure 9. UVLO saturation vs. TJ
- Figure 10. OVP levels vs. TJ
- Figure 11. Inductor saturation threshold vs. TJ
- Figure 12. Vcs clamp vs. TJ
- Figure 13. ZCD sink/source capability vs. TJ
- Figure 14. ZCD clamp level vs. TJ
- Figure 15. R discharge vs. TJ
- Figure 16. Line drop detection threshold vs. TJ
- Figure 17. VMULTpk - VVFF dropout vs. TJ
- Figure 18. PFC_OK threshold vs. TJ
- Figure 19. PFC_OK FFD threshold vs. TJ
- Figure 20. Multiplier characteristics at VFF = 1 V
- Figure 21. Multiplier characteristics at VFF = 3 V
- Figure 22. Multiplier gain vs. TJ
- Figure 23. Gate drive clamp vs. TJ
- Figure 24. Gate drive output saturation vs. TJ
- Figure 25. Delay to output vs. TJ
- Figure 26. Start-up timer period vs. TJ
- 6 Application information
- 7 Application examples and ideas
- Figure 34. Demonstration board EVL6564-100W, wide-range mains: electrical schematic
- Figure 35. L6564 100W TM PFC: compliance to EN61000-3-2 standard
- Figure 36. L6564 100W TM PFC: compliance to JEITA-MITI standard
- Figure 37. L6564 100 W TM PFC: input current waveform at 230 - 50 Hz - 100 W load
- Figure 38. L6564 100W TM PFC: input current waveform at 100 V - 50 Hz - 100 W load
- 8 Package mechanical data
- 9 Order codes
- 10 Revision history
DocID16202 Rev 5 5/33
L6564 Description
33
1 Description
The L6564 device is a current mode PFC controller operating in transition mode (TM) and
represents the compact version of the L6563S device as it embeds the same driver,
reference and control stages in a very compact 10-pin SSOP10 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.
The output voltage is controlled by means of a voltage mode error amplifier and an accurate
(1% at T
J
= 25 °C) internal voltage reference. The loop stability is optimized by the voltage
feed-forward function (1/V
2
correction), which in this IC uses a proprietary technique that
considerably improves line transient response as well in case of mains both drops and
surges (“bidirectional”).
In addition to overvoltage protection able to control the output voltage during transient
conditions, the IC also provides protection against feedback loop failures or erroneous
settings. Other on-board protection functions allow brownout conditions and boost inductor
saturation to be safely handled.
The totem-pole output stage, capable of 600 mA source and 800 mA sink current, is suitable
for the high power MOSFET or IGBT drive. This, combined with the other features and the
possibility to operate with ST's proprietary fixed-off-time control, makes the device an
excellent solution for SMPS up to 400 W that require compliance with the EN61000-3-2 and
JEITA-MITI standards.