L6562ATD STMicroelectronics, L6562ATD Datasheet
L6562ATD
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L6562ATD Summary of contents
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... UVLO and voltage clamp Figure 1. Block diagram Table 1. Device summary Order codes L6562ATN L6562ATD L6562ATDTR March 2009 Transition-mode PFC controller DIP-8 ■ DIP-8/SO-8 packages Applications PFC pre-regulators for: ■ Street lighting ■ ...
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Contents Contents 1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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Description 1 Description The L6562AT is a current-mode PFC controller operating in transition mode (TM). Coming with the same pin-out as its predecessors L6561 and L6562, it offers improved performance. The highly linear multiplier includes a special circuit, able to ...
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Pin settings 2 Pin settings 2.1 Pin connection Figure 2. Pin connection (top view) 2.2 Pin description Table 2. Pin description Pin N° Name 1 INV 2 COMP 3 MULT ZCD 6 GND Vcc ...
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Maximum ratings 3 Maximum ratings Table 3. Absolute maximum ratings Symbol Pin --- ZCD 4 Thermal data Table 4. Thermal data Symbol Max. thermal resistance, junction-to- R thJA ambient P Power dissipation ...
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Electrical characteristics 5 Electrical characteristics -40 °C < T < +125 ° Table 5. Electrical characteristics Symbol Parameter Supply voltage V Operating range CC Vcc Turn-on threshold On Vcc Turn-off threshold Off Hys Hysteresis V Zener voltage Z ...
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Electrical characteristics Table 5. Electrical characteristics (continued) Symbol Parameter Output overvoltage Dynamic OVP triggering I OVP current Hys Hysteresis Static OVP threshold Current sense comparator I Input bias current CS t Leading edge blanking LEB td Delay to output (H-L) ...
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Typical electrical characteristic 6 Typical electrical characteristic Figure 3. Supply current vs supply voltage 10.00 1.00 0.10 0.01 0.00 0.00 5.00 Figure 5. IC consumption 0.1 0.01 -50 0 8/25 Figure ...
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Typical electrical characteristic Figure 7. Feedback reference vs T 2.6 2.55 2.5 2.45 2.4 -50 0 Figure 9. E/A output clamp levels -50 0 9/25 Figure Vcc = ...
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Typical electrical characteristic Figure 11. Multiplier characteristic 1.2 Upper Volt. Clamp 1.1 5.75 V 1.0 0 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.0 -0.1 0 0.2 0.4 0.6 0.8 Figure 13. ZCD clamp levels vs T ...
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Typical electrical characteristic Figure 15. Gate-driver output low saturation 5.00 4.00 3.00 2.00 1.00 0.00 0 200 Figure 17. Gate-drive clamp vs T 13.5 13.25 13 12.75 12.5 -50 0 11/25 Figure 16. Gate-drive output high 12.00 11.00 10.00 9.00 ...
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Application information 7 Application information 7.1 Overvoltage protection Under steady-state conditions, the voltage control loop keeps the output voltage PFC pre-regulator close to its nominal value, set by the resistors R1 and R2 of the output divider. ...
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Application information When the load of a PFC pre-regulator is very low, the output voltage tends to stay steadily above the nominal value, which cannot be handled by the Dynamic OVP. If this occurs, however, the error amplifier output will ...
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Application information Figure 19. THD optimization: standard TM PFC controller (left side) and L6562AT (right side) Rectified mains voltage Imains Input current To overcome this issue the circuit embedded in the device forces the PFC pre-regulator to process more energy ...
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Application information 7.4 Operating with no auxiliary winding on the boost inductor To generate the synchronization signal on the ZCD pin, the typical approach requires the connection between the pin and an auxiliary winding of the boost inductor through a ...
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Application information 7.5 Comparison between the L6562AT and the L6562 The L6562AT is not a direct drop-in replacement of the L6562, even if both have the same pin-out. One function (Disable) has been relocated. Table 2 compares the two devices, ...
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Application examples and ideas 8 Application examples and ideas Figure 21. Demonstration board wide-range mains: electrical schematic W08 W08 4A/250V 4A/250V Vac Vac - - 88V 88V to to 264V 264V Boost Inductor Spec ...
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Application examples and ideas Figure 22. L6562A 80W TM PFC evaluation board: compliance to EN61000-3-2 standard Measurements @ 230Vac Full load 1 0.1 0.01 0.001 0.0001 ...
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Application examples and ideas Figure 26. L6562A 80W TM PFC evaluation board: power factor vs Vin 1.00 0.95 0.90 Pout = 80W 0.85 0.80 80 100 120 140 160 180 Vin (Va c) Figure 28. L6562A 80W TM PFC evaluation ...
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Application examples and ideas Figure 30. Demonstration board EVL6562A-400W, wide-range mains, 20/25 L6562AT FOT ...
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Package mechanical data 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 ...
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Package mechanical data Table 7. DIP-8 mechanical data Dim Figure 31. Package dimensions 22/25 mm Min Typ Max 3.32 0.51 1.15 1.65 0.356 0.55 0.204 0.304 ...
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Package mechanical data Table 8. SO-8 mechanical data Dim ( ddd 1. Dimensions D does not include mold flash, protrusions or gate burrs. Mold flash, protrusions or gate ...
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Revision history 10 Revision history Table 9. Document revision history Date 19-Jan-2009 04-Mar-2009 24/25 Revision 1 First release 2 Updated Table 5 on page 6 L6562AT Changes ...
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