EVL130W-SL-EU STMicroelectronics, EVL130W-SL-EU Datasheet
EVL130W-SL-EU
Specifications of EVL130W-SL-EU
Available stocks
Related parts for EVL130W-SL-EU
EVL130W-SL-EU Summary of contents
Page 1
... This application note describes the characteristics and features of a 130 W demonstration board (EVL130W-SL-EU), tailored on an LED power supply specification for street lighting. The circuit is composed of two stages; a front-end PFC using the L6562AT and an LLC resonant converter based on the L6599AT. ...
Page 2
Contents Contents 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Page 3
... EVL130W-SL-EU demonstration board: overall efficiency vs. load . . . . . . . . . . . . . . . . . . . 9 Table 2. Thermal maps reference points - PCB top side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Table 3. Thermal maps reference points - PCB bottom side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Table 4. EVL130W-SL-EU demonstration board: bill of material . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Table 5. PFC coil winding data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Table 6. Transformer winding data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Table 7. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 ...
Page 4
... List of figures List of figures Figure 1. EVL130W-SL-EU: 130 W SMPS for LED street lighting applications Figure 2. EVL130W-SL-EU demonstration board: electrical diagram . . . . . . . . . . . . . . . . . . . . . . . . . 8 Figure 3. EVL130W-SL-EU demonstration board efficiency diagrams . . . . . . . . . . . . . . . . . . . . . . . . 9 Figure 4. EVL130W-SL-EU demonstration board: compliance to EN61000-3-2 Class-C standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Figure 5. EVL130W-SL-EU demonstration board: input current waveform at 230 130 W load and 65 W load ...
Page 5
AN3105 2 Main characteristics and circuit description The main features of the SMPS are: ● Extended European input mains range: 177 ÷ 277 V ● Output voltage 2.7 A ● Long-life electrolytic capacitors are not used ● ...
Page 6
Main characteristics and circuit description 2.2 Resonant power stage The down-stream converter is a resonant LLC half-bridge stage working with 50 percent fixed duty cycle and variable frequency. It implements the ST L6599AT, integrating all functions necessary to properly control ...
Page 7
AN3105 With these modifications the circuit is able to keep the output current constant at 2.7 A down to an output voltage value of around 30 V. This function can be used to optimize the voltage drop and power dissipation ...
Page 8
... Main characteristics and circuit description Figure 2. EVL130W-SL-EU demonstration board: electrical diagram 8/31 Doc ID 16774 Rev 1 AN3105 ...
Page 9
... AC efficiency power supplies. The efficiency has been measured at 25%, 50%, 75%, and 100%, the average efficiency calculated according to the ES-2 standard is 91.56%. Table 1. EVL130W-SL-EU demonstration board: overall efficiency vs. load Load V OUT 25% load 47 ...
Page 10
... W) shows that even if the power supply is working out of its typical operating region it is still compliant with the EN61000-3-2 Class-C limits. Figure 4. EVL130W-SL-EU demonstration board: compliance to EN61000-3-2 Class-C standard V = 230 Hz 130 W ...
Page 11
... AN3105 For user reference, waveforms of the input current and voltage at nominal input voltage mains full load and 50% load conditions are given in Figure 5. EVL130W-SL-EU demonstration board: input current waveform at 230 130 W load and 65 W load CH1 CH4: I_AC IN The “Power Factor” (PF) and the “Total Harmonic Distortion” (THD) versus load variations have also been measured and the results are given in remains close to unity and the Total Harmonic Distortion is very low ...
Page 12
... PFC stage also possible to measure the peak-to-peak value of voltage ripple over imposed to the PFC output voltage; this is due to the low value of the PFC output capacitors. On the righthand side of given. Figure 7. EVL130W-SL-EU demonstration board: PFC stage and L6562AT waveforms at 230 full load – detail CH2: V PFC CH3: CS ...
Page 13
... V guarantees good reliability of the output rectifiers increasing the board total MTBF. RRM Figure 8. EVL130W-SL-EU demonstration board: primary and secondary side resonant stage waveforms at 230 full load CH1: HB voltage CH2: CF pin voltage CH3: V CH4: res. tank current CC (on the righthand side) ...
Page 14
... It is possible to note that the peak-to-peak value is not so low but it doesn't affect the application, in fact the converters regulating the current flowing in each LED strip can reject the ripple without any problem. Figure 9. EVL130W-SL-EU demonstration board: high and low frequency ripple on output voltage at 230 full load CH3: V OUT 5 ...
Page 15
... AN3105 Figure 10. EVL130W-SL-EU demonstration board: output voltage variation driving a CC LED converter - PWM = 90% and PWM = 15% CH1: PWM dimming signal CH4: SMPS output current It is worth clarifying that, for correct operation with LED strips, the board needs some additional capacitors connected on the +48 V output bus. It has not been equipped with all the capacitors necessary for correct operation with LEDs but only with minimum capacitance to allow board operation, in order to optimize the system cost and reliability ...
Page 16
... This avoids converter overheating and consequent failures. At short removal the board resumes normal operation. Figure 11. EVL130W-SL-EU demonstration board: short-circuit at 230 V open loop protection intervention load CH1: V_OUT_PFC ...
Page 17
... The V charge pump, and then, once the L6599AT starts operating, the V LLC transformer auxiliary winding. Details of converter sequencing can be found on the righthand side of Figure 12. EVL130W-SL-EU demonstration board: startup at 230 V CH1: Q2_Drain CH2: HB voltage CH3: L6562AT V ...
Page 18
Functional check 5.6 Thermal map In order to check the design reliability, a thermal mapping by means camera was done. In Figure 13 input voltage are shown. Some pointers visible on the images have been placed across ...
Page 19
AN3105 Figure 14. Thermal map at 230 V Table 3. Thermal maps reference points - PCB bottom side Point Reference D12 E D11 - full load - PCB bottom side ...
Page 20
Conducted emission pre-compliance test: peak measurement 6 Conducted emission pre-compliance test: peak measurement Figure 15 and 16 nominal mains voltage. The limits on the diagrams are the EN55022 Class-B. As seen in the diagrams, for both input wires the measurements ...
Page 21
... AN3105 7 Bill of material Table 4. EVL130W-SL-EU demonstration board: bill of material Part type/ Case style/ Des. part value package 4.5 x 12.0 C1 2N2-Y1 p.10 mm C10 1 µF 1206 C11 220 nF 0805 C12 0R0 0805 C13 10 µF 1210 C15 15 nF 0805 C16 220 pF 0805 7.8 x 7.8 C17 4.7 µ ...
Page 22
... Bill of material Table 4. EVL130W-SL-EU demonstration board: bill of material (continued) Part type/ Case style/ Des. part value package C39 470 nF 0805 9.0 × 18.0 C4 470 p.15 mm C40 10 µF 2220 C41 N. M. 0805 14 × 31 µF p.27 × 31 µ × 31 µF p. 27 ...
Page 23
... AN3105 Table 4. EVL130W-SL-EU demonstration board: bill of material (continued) Part type/ Case style/ Des. part value package D7 BZV55-B15 SOD-80 D8 LL4148 SOD-80 D9 LL4148 SOD-80 8 5.08 F1 FUSE T4A mm MKDS 1, 5.08 mm 3-5,08 MKDS 1, 2-5,08 L1 1974.0001 DWG DWG Dia. 7.7 L3 3.3 µ BC846C SOT-23 Q2 STF21NM60N TO220 Q3 N ...
Page 24
... Bill of material Table 4. EVL130W-SL-EU demonstration board: bill of material (continued) Part type/ Case style/ Des. part value package R22 15 KΩ 0805 100 Ω R23 0805 R24 1.4 MΩ 1206 R25 82 KΩ 0805 R26 15 KΩ 0805 470 Ω R27 0805 R29 N ...
Page 25
... AN3105 Table 4. EVL130W-SL-EU demonstration board: bill of material (continued) Part type/ Case style/ Des. part value package 100 Ω R57 0805 R58 150 KΩ 0805 1.5 Ω R59 1206 R6 1.0 MΩ 1206 R60 8.2 KΩ 0805 R61 N. M. 1206 R62 100 KΩ ...
Page 26
PFC coil specifications 8 PFC coil specifications General description and characteristics ● Application type: consumer, home appliance ● Transformer type: open ● Coil former: vertical type pins ● Max. temp. rise: 45 °C ● Max. operating ambient ...
Page 27
AN3105 Table 5. PFC coil winding data Pins ● Primary winding external insulation: 2 layers of polyester tape. ● Aux. winding is wound on top of primary winding. ● External insulation: 2 layers of ...
Page 28
Transformer specification 9 Transformer specification General description and characteristics ● Application type: consumer, home appliance ● Transformer type: open ● Coil former: horizontal type pins, two slots ● Max. temp. rise: 45 °C ● Max. operating ambient ...
Page 29
AN3105 Table 6. Transformer winding data Pins 2-4 8-10 SEC - A 12-14 SEC - B4 6-7 1. Secondary windings A and B must be wound in parallel. 2. Aux. winding is wound on top of primary winding, turns are ...
Page 30
Revision history 10 Revision history Table 7. Document revision history Date 01-Sep-2010 30/31 Revision 1 Initial release. Doc ID 16774 Rev 1 AN3105 Changes ...
Page 31
... AN3105 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. ...