STEVAL-ISA102V1 STMicroelectronics

STEVAL-ISA102V1 80 W high performance transition mode PFC demonstration board Data brief Features Line voltage range: 88 to 265 VAC Minimum line frequency (f ): 47 Hz L Regulated output voltage: 400 V Rated output power: 80 W Maximum 2f output voltage ripple: 10 V pk-pk L Hold-up time: 20 ms (V after hold-up time: DROP 300 V) Minimum switching frequency: 35 kHz Minimum estimated efficiency: 92% (V = 90 V , P = 80 W) IN AC OUT Maximum ambient temperature: 50 C PCB type and size: single-side, 35 m, CEM-1, 108 x 57 mm RoHS compliant Description The L6562A is a current-mode PFC controller operating in transition mode (TM). With the same pinout as its L6562 predecessor, the L6562A offers improved performance mainly in terms of efficiency and noise immunity. The STEVAL-ISA102V1 implements an 80 W, wide-range mains input and a PFC pre-conditioner suitable for ballast, adapters, flat screen displays, etc. February 2012 Doc ID 022845 Rev 1 1/4 For further information contact your local STMicroelectronics sales office. www.st.com 4 Circuit schematic STEVAL-ISA102V1 1 Circuit schematic Figure 1. Circuit schematic AM11916v1 2/4 Doc ID 022845 Rev 1 Vo=400V D1 NTC Po=80W STTH1L06 2.5 T1 R4 R5 D8 C5 R14 R11 270270 kk 270270 kk 1N41481N4148 1010 nFnF 100100 1M R50 - 22 k D2 R1 R12 1N5248B 1 M 1M R6 C3 - 2200 nF 47 k C1 P1 C23 020.222 FF ZCD COMP 150 nF INV + F1 W08 630V C6 R2 4A/250V VCC 8 5 21 47 F R7 1 M 33 450V Q1 MULT GD 3 7 Vac L6562A - STP8NM50FP 88V 6 4 to R8 264V 47k CS GND C2 R15 10nF C29 SHORTED R3 C4 22 F R9 R10 15 k 100 nF R13 R13B 25V 0.68 0.68 15 k 82 k 0.25W 0.25W Boost Inductor Spec (ITACOIL E2543/E) E25x13x7 core, N67 ferrite 1.5 mm gap for 0.7 mH primary inductance Primary: 102 turns 20x0.1 mm Secondary: 10 turns 0.1 mm