STEVAL-ILL042V2 60 W, high power-factor flyback LED driver based on the L6562AT and TSM101 Data brief Description The STEVAL-ILL042V2 demonstration board is an LED power supply in high PF flyback configuration designed to drive a 60 W LED array. The board is based on the L6562AT and the TSM101 controller. This configuration uses an isolated feedback with an optocoupler and a secondary side reference/error amplifier, the TSM101, for voltage and current regulation. STEVAL-ILL042V2 The TSM101 includes two op-amps. One op-amp is used for constant voltage control and the other for constant current control. Features * Mains voltage range: VAC(min) = 185, VAC(max) = 265 * Minimum mains frequency: fL = 47 Hz * DC output voltage: VOUT = 130 V * Maximum output current: IOUT = 0.462 A * Minimum switching frequency: fSW(min) = 57 Hz * Reflected voltage: VR = 195 V * Leakage inductance spike: VSPIKE = 100 V The L6562AT is a PFC controller which operates in transition mode. The highly linear multiplier includes a special circuit which is able to reduce AC input current distortion, allowing wide-range mains operation with an extremely low THD, even over a large load range. Efficiency is high at heavy load - more than 90% can be achieved. Designed using the L6562A and the TSM101 controllers, this system offers several advantages in terms of output current and voltage stability. * Expected efficiency: 92% * RoHS compliant September 2013 DocID025325 Rev 1 For further information contact your local STMicroelectronics sales office. 1/4 www.st.com CON3 3 2 1 P N E R 27 8.2 kOhm R 26 1 MOhm R 29 1 MOhm R 30 1 MOhm C 21 3 2 4 1 2.2n-Y1- 250V C 23 150 pF 25V C 17 1nF C 1A U3 L 656 2A T 0 Ohm R 21 C 1B 10 nF X 2 2 N.M. 1 INV 4 CS ZCD 5 MULT 3 COMP GND 7 VCC 8 GD 6 C 14 R 36 750k 1nF 25V R 22 82 kOhm 4 - - + +1 2.2kOhm R 24 30 kOhm R 23 R 28 100 kOhm R 31 100 kOhm D4 T M M B A T 46 R 45 100 Ohm R 44 1.2Ohm, 1% R 35 S T P 7N 95 K 3 18 Ohm C 20 100nF - 630V D C 4A 600V R 34 100 kOhm BR 1 2 3 L3 2x100mH, 0.7A C 15 47uF , 3 5V R 25 1.2Ohm, 1% Q1 S T T H 2L06 D1 D6 P 6K E 4 0 0A 2 20 n F C 18 R4 10 Ohm D3 T M M B A T 46 ISO1 R5 47k Ohm 7 6 2 3 4 5 D5 C 19 220 nF S T T H 2L06 P C 817 9 10 12 13 T1 MAGNETICA: 1055.0068 C 16 2.2n-Y1- 250V 4 3 F1 1 2 FUSE 3.15A C 29 2 2 0n F R 20 47kOhm U5 T S M 101 R 38 47k Ohm R 18 15 kOhm 2 J3 3 Crref Output 4 Gnd Crin 5 Csense Vrin 1 Vref VCC DocID025325 Rev 1 6 2/4 7 C 28 1nF R 47 510 kOhm C 10 C 24 L4 C 27 2 2 0n F R 42 2 kOhm R 41 10 kOhm D9 27V 0.5W R 16 10 kOhm R 33 10 kOhm R 14 10 kOhm R 46 10 kOhm C 25 22 0 nF R 15 100 Ohm 3 30u F , 16 0V 33 0u F , 1 60 V 33 0u F , 1 60 V C9 R 17 2.7 kOhm D7 LL 414 8 R 37 100 kOhm R 19 100 kOhm R 32 100 kOhm 100 nF C 13 D8 LL4148 R 39 10 kOhm R 43 1.2 Ohm, 1% R 40 1.2 Ohm, 1% C 22 4.7 uF 160V 15uH 2.8A Digikey: SLF12555T150M2R8P-ND J1 CON2 Vout=120 DC, Iout=0.35A 1 2 1 8 Vin=185 to 265 Vac Schematic diagram STEVAL-ILL042V2 Schematic diagram Figure 1. STEVAL-ILL042V2 circuit schematic AM17532v1 STEVAL-ILL042V2 2 Revision history Revision history Table 1. Document revision history Date Revision 30-Sep-2013 1 Changes Initial release. DocID025325 Rev 1 3/4 4 STEVAL-ILL042V2 Please Read Carefully: 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. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and services described herein. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. 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