STEVAL-ISA032V1 60 W forward converter demonstration board for fiscal cash register based on the L5991 and STP10NK60Z Data Brief Features ■ Input voltage: V : 88 - 265 Vac IN – frequency: 50-60 Hz ■ Output voltage: VOUT = 9 V ) s ■ Output current: I = 5.5 A (6 A peak) ( OUT t c ■ Efficiency: >75% u ■ Safety: EN60950 compliant d o ■ Conducted EMI: EN55022 r P e Description t e STEVAL-ISA032V1 The STEVAL- ISA032V1 forward converter ol demonstration board is a power supply based on s b the primary controller L5991 and the O STP10NK60Z N-channel 600 V power MOSFET. It is designed to be suitable to supply power to th-e electronic fiscal cash register (EFCR) ) s demonstration board STEVAL-IPC001V(1. t c The STEVAL- ISA032V1 demonsutration board accepts a wide range of inputd voltage (88 to 265 o Vac) and delivers a single 9 V output with a power r capability of up to 50 PW continuous, and 60 W peak, making it als o capable of providing power to e a thermal printter. e l o s b O July 2008 Rev 1 1/5 For further information contact your local STMicroelectronics sales office. www.st.com 5

Circuit schematic STEVAL-ISA032V1 1 Circuit schematic Figure 1. Schematic diagram 1/2 V +9 RR2200R20 000011100 R7RR773.9k99kk33.. R11RR11111.5kkk11..55 0 uuu C6C66C220222200 nnn C5CC55220u222200uu 0 CC88C8 333300330 R10RR1100 680668800 RR999R 339900390 ) 222 HHH s LLL uuu 000 474477 R6R6R61.5k1.5k1.5k 0ct( 000 D2DD22STPS30H1SSTTPPSS3300HH11 CC1199C19 11nn1n R19RR1199 100110000 UU11U1 PPCC881177PC817 U2U2P TL431TL431r o d u 11 22 5 6 e t 202200 e TTT RPLRRLLPP ol MMM T2TT22 SFSSFF s TRNTTRRNN 10 1144 16 1177 O b 888 444 144411 C4CC444.7n44..77nn cD4DD44t(D5DD55STTH106SSTTTHH110066Ts ) N111NN- QQ22Q2 SSTTPP1100NNKK6600ZZS0K6TP1N0Z R8RR880.60066.. R1RR11 K333333KKu 2 33 d 1 o e t eIEBRDGEEBRIDGE 1D1D1P r++2 3C3C3C3220u R4RR44 2.2k22..22kk DD66D61155VVZZEENNEERR15VZENER R533R5333R53 C9CC99620p660022pp s ol ODIDDIOD C2CC22--4010n110000nn Q1QQ11STX715SSTTXX771155 painl b UUTT SE mp no O 22 1 OO SEN Co Vici T3T3T33301mH1100mmHHCC11881C8 001100nn100n 4 D3DD33 1N414811NN44114488 RR22R24477kk47k RR333R4477kk47k WM_L5991 ccV I DDDNNNGGGPSS P 22 1 HHH mmm 1TTT11202200 222 222 33C1CC11 100n100n100n 4 J1JJ11 122 CONCCOONN J2JJ22 122 OCNCCOONN 0 0 EEE tt 11FFF1 FUSFUSFUS -16-16 4.7n44..77nn 2.5A2.5A2.5A NTCTCN C7CC77 FF N 99VV ++ FF N AM00642V1 2/5

STEVAL-ISA032V1 Circuit schematic Figure 2. Schematic diagram 2/2 BBCC333377 QQ33 111555kkk RRR111222 UU33 1 16 2 15 3 14 RR1133 CC1100 4 13 Vicino al pin 33..33nn 44..77kk 5 12 CCC111111 CCC111222 6 11 7 10 111000ppp 111000000ppp 8 9 LL55999911 RRR111444 CC1133 CC1144 222222 RRR111555 11uu 2222nn 111kkk ) s ( t CC1155 c 4477uu u RR1166 d 447700kk o r Comp Vcc OUT PGND PSSGGNNDD ISENSE e t e RRR111777 CC1177 CC1166 ol 1100pp 444777000kkk 00..11uu s b O RR1188 3333kk - ) s AM00643v1 ( t c u d o r P e t e l o s b O 3/5

Revision history STEVAL-ISA032V1 2 Revision history Table 1. Document revision history Date Revision Changes 30-June-2008 1 Initial release. ) s ( t c u d o r P e t e l o s b O - ) s ( t c u d o r P e t e l o s b O 4/5

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