data brief for further information contact your local stmicroelectronics sales office. november 2008 rev 1 1/4 4 STEVAL-ILL016V1 15 w offline triac dimmable led driver based on the ld6562ad and tsm1052 (usa market-115 v) features 120 v line (96 v to 132 vrms) v out is set at 40 v max i out is set at 0.7 a maximum average current 0.7 minimum power factor, required for residential use 0.9 or greater power factor, required for commercial use capable of fcc class b conducted emi emitted acoustic noise less than 24 dba isolated output, "safe" voltage dimmable with low-cost triac based dimmer, average current down to less than 10% of maximum led current led lifetime of 25,000 hours (residential) or 35,000 hours (commercial) to 70% light output meets requirements of us doe energy star? program requirements for ssl luminaires - version 1.0 description this demonstration board is a low-cost driver for leds that is compatible with triac phase-control dimmers. the design gives illumination manufacturers a low-cost, commonly available dimming option for home fixtures. a side benefit is that, when not wired to a dimmer, the unit's power factor is over 0.9. the design is based on the l6562a transition mode pfc controller driving a single stage pfc- flyback power converter. am 3 120v1 STEVAL-ILL016V1 www.st.com obsolete product(s) - obsolete product(s)
schematic STEVAL-ILL016V1 2/4 1 schematic figure 1. STEVAL-ILL016V1 schematic 1 2 tb1 termstrip2 r7 27 1w ww c5 0.1uf "x2" d1 s1m d3 s1m d2 s1m d4 s1m c6 0.33uf c7 0.1uf 250v f1-1a fuse wired r1 100k c8 1uf 50v c1 0.01uf 630v x7r r3 82k d6 stth1r06a c9 1uf 63v c10 1uf 63v r15 1.5 5% r16 1.5 5% q1 stp5nk60zfp r14 200 r9 47k ingnd clamp +out 0.7a max d9 mmsd4148 r4 82k r5 82k c18 4700pf y c17 100pf 1kv r20 10 -out outdiode c2 100pf 1kv r6 330 c16 0.47uf c3 0.1uf "x2" r8 220 2w 120v 60hz 1 2 tb2 termstrip2 36v max irms = 560ma ipk = 1.15a iavg = 0.7a irms = 1.7a ipk = 5.2a lpri = 0.6mh turns ratios: pri = 10 sec = as appropriate aux = 1.96 inv 1 comp 2 mult 3 vcc 8 zcd 5 gate 7 gnd 6 cs 4 u1 l6562ad r13 43k appx 3.2v 2.50v iavg = 400ma q1: peak = 470v use 600v xstr allow 1w, no sink - rmax = 3.19 ohms stp5nk60zfp rdson = 1.6 ohms c11 1uf 63v l3 33uh 1.6a c12 1uf 63v for 2 strings of 8 leds 1 3 2 d7 stps10150ct 0.6w @ 120v 90deg cond l4 panasonic elf-17n002a posin ac1 ac2 snub hot neut drain fhot sectap rawout r10 806k 1% r17 20k c13 0.0022uf d11 mmsz5246 r19 18k r25 270k c19 22uf 50v appx 11.5v rload = 40 ohms 15w zload = 4 ohms r18 68k d12 mmsd4148 1 2 3 4 u2 ps2703-1 opto 1 3 2 q2 mmbt4401 1 3 4 5 6 7 2 8 t1 cramer csm2010-128 r34 680k required for startup of l6562a r11 4.3k r23 2.2k c20 0.033uf c22 0.1uf c14 22uf 50v r33 100k r27 0.56 outhk r29 0.56 r28 1.5 r31 10k 1% vcc 6 out 3 vctrl 1 gnd 2 visense 5 ictrl 4 u3 tsm1052 c15 0.01uf r32 47k 1 3 2 q3 mmbt4401 d10 mmsd4148 r21 220k 0.20v each 0.4903 ohm parallel resistance for 300ma use 0.572 ohms. 1.21v d13 mmsz5242b c21 10uf 50v r26 332k 1% adds 350ma output current outneg c23 0.1uf topside ground plane allow 5v per led in string for (2) 350ma strings: or csm2010-127 r24 100k 2.12mh differential l r2 1k r12 1k vcc vccbulk gatedrv zcd am3121v1 obsolete product(s) - obsolete product(s)
STEVAL-ILL016V1 revision history 3/4 2 revision history table 1. document revision history date revision changes 06-nov-2008 1 initial release obsolete product(s) - obsolete product(s)
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