L6564HTR STMicroelectronics, L6564HTR Datasheet
L6564HTR
Specifications of L6564HTR
Available stocks
Related parts for L6564HTR
L6564HTR Summary of contents
Page 1
Features ■ Onboard 700 V startup source ■ Fast “bi-directional” input voltage feedforward 2 (1/V correction) ■ Accurate adjustable output overvoltage protection ■ Protection against feedback loop disconnection (latched shutdown) ■ Inductor saturation protection ■ AC brownout detection ■ Low ...
Page 2
Contents Contents 1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Page 3
L6564H List of tables Table 1. Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Page 4
List of figures List of figures Figure 1. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Page 5
L6564H 1 Description The L6564H is a current-mode PFC controller operating in transition mode (TM) which embeds the same features existing in the L6564 with the addition of a high voltage startup source. These functions make the IC especially suitable ...
Page 6
Maximum ratings 2 Maximum ratings 2.1 Absolute maximum ratings Table 1. Absolute maximum ratings Symbol V HVS I HVS V CC --- --- ZCD VFF pin Other pins 6, 8, ...
Page 7
L6564H 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- 1 INV regulator is fed into the pin through a ...
Page 8
Pin connection Table 3. Pin description (continued) n° Name PFC pre-regulator output voltage monitoring/disable function. This pin senses the output voltage of the PFC pre-regulator through a resistor divider and is used for protection purposes. If the voltage on the ...
Page 9
L6564H 4 Electrical characteristics (T = -25 to 125 ° MΩ between pin VFF and GND; unless otherwise specified.) Table 4. Electrical characteristics Symbol Parameter Supply voltage V Operating range CC V Turn-on threshold CCOn V Turn-off ...
Page 10
Electrical characteristics Table 4. Electrical characteristics (continued) Symbol Parameter ∆V CS Output max. slope --------------------- - ∆V MULT (2) K Gain M Error amplifier Voltage feedback input V INV threshold Line regulation I Input bias current INV V Internal clamp ...
Page 11
L6564H Table 4. Electrical characteristics (continued) Symbol Parameter V Disable threshold PFC_OK_D V Disable threshold PFC_OK_D V Enable threshold PFC_OK_E V Enable threshold PFC_OK_E V feedback failure detection INV V FFD threshold (V falling) INV Zero current detector V Upper ...
Page 12
Electrical characteristics Table 4. Electrical characteristics (continued) Symbol Parameter t Voltage fall time f t Voltage rise time r V Output clamp voltage Oclamp UVLO saturation 1. Parameters tracking each other. 2. The multiplier output is given by ...
Page 13
L6564H 5 Typical electrical performance Figure 4. IC consumption vs. V 100 10 1 Co=1nF f =70kHz Tj = 25° C 0.1 0.01 0.001 Vcc [V] Figure 6. V Zener voltage vs ...
Page 14
Typical electrical performance Figure 10. 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 12. Inductor saturation threshold vs. T 1.9 1.8 1.7 1.6 1.5 ...
Page 15
L6564H Figure 16. R discharge vs -50 - (C) Figure 18 dropout vs. T MULTpk VFF 2 1.5 1 0.5 ...
Page 16
Typical electrical performance Figure 21. Multiplier characteristics @V 1.2 1.1 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0 0.1 0.2 0.3 0.4 0.5 0.6 VMULT (V) Figure 23. Multiplier gain vs. T 0.5 0.4 0.3 0.2 ...
Page 17
L6564H Figure 27. Startup timer period vs. T 450 400 350 300 250 200 150 100 50 0 -50 - (C) Figure 29. V restart voltage vs ...
Page 18
Application information 6 Application information 6.1 Overvoltage protection Normally, the voltage control loop keeps the output voltage V close to its nominal value, set by the ratio of the resistors R1 and R2 of the output divider. A pin of ...
Page 19
L6564H immediately stopped, the device is shut down, its quiescent consumption is reduced below 180 µA, and the condition is latched as long as the supply voltage of the IC is above the UVLO threshold. To restart the system it ...
Page 20
Application information In this way a change of the line voltage causes an inversely proportional change of the half sine amplitude at the output of the multiplier (if the line voltage doubles the amplitude of the multiplier output is halved ...
Page 21
L6564H So: Always connect R floating or connected directly to ground. Figure 33. R ·C FF current 10 R · 0.1 0.01 V MULTpk 2 ∆V > and C to the pin, ...
Page 22
Application information 6.4 THD optimizer circuit The L6564H is provided with a special circuit that reduces the conduction dead-angle occurring at the AC input current near the zero-crossings of the line voltage (crossover distortion). In this way the THD (total ...
Page 23
L6564H Figure 35. THD optimization: standard TM PFC controller (left side) and L6564H (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 ...
Page 24
Application information occasionally slightly saturate when the PFC stage is restarted because of a larger load demand. This happens when the restart occurs at an unfavorable line voltage phase, i.e. when the output voltage is significantly below the rectified peak ...
Page 25
L6564H Figure 37. Interface circuits that let the DC-DC converter’s controller IC disable the L6564H Another function available is the brownout protection which is basically a not-latched shutdown function that is activated when a condition of mains undervoltage is detected. ...
Page 26
High voltage startup generator 7 High voltage startup generator Figure 38 shows the internal schematic of the high voltage startup generator (HV generator made high voltage N-channel FET, whose gate is biased ...
Page 27
L6564H As the V voltage reaches the startup threshold (12 V typ.) the low voltage chip starts CC operating and the HV generator is cut off by the V powered by the energy stored in the V that it is ...
Page 28
High voltage startup generator Figure 41. High voltage startup managing the DC-DC output short-circuit Vcc (pin 14) Vcc ON Vcc OFF Vcc restart GD (pin 13) Vcc_OK I charge 0.85 mA Table 5. Summary of L6564H idle states Condition UVLO ...
Page 29
L6564H 8 Application examples and ideas Figure 42. Demonstration board EVL6564H - 100 W, wide-range mains: electrical schematic Application examples and ideas Doc ID 022960 Rev 2 AM11471v1 29/35 ...
Page 30
Application examples and ideas Figure 43. EVL6564H demonstration board: compliance to EN61000-3-2 standard Figure 45. EVL6564H demonstration board: input current waveform @230 V - 100 W load 30/35 Figure 44. EVL6564H demonstration board: compliance to JEITA-MITI standard Figure ...
Page 31
L6564H 9 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: is ...
Page 32
Package mechanical data Figure 47. SO-14 package dimensions 32/35 Doc ID 022960 Rev 2 L6564H 0016019_E ...
Page 33
... L6564H 10 Ordering codes Table 7. Ordering information Order codes L6564H L6564HTR Package SO-14 Doc ID 022960 Rev 2 Ordering codes Packing Tube Tape and reel 33/35 ...
Page 34
Revision history 11 Revision history Table 8. Document revision history Date 19-Apr-2012 07-Jun-2012 34/35 Revision 1 Initial release. 2 Datasheet promoted from preliminary data to production data. Doc ID 022960 Rev 2 L6564H Changes ...
Page 35
... L6564H 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. ...