S T E VA L - I S A 1 6 1 V 1 Evaluation board for the SEA01 constant voltage and current controller with online digital trimming Data brief Description The STEVAL-ISA161V1 is an evaluation board to test the performance of the SEA01 constant voltage and current controller with online digital trimming from STMicroelectronics. The board implements a 65 W adapter, targeting applications such as power supplies for high-end portable computers. The board uses the SEA01 as secondary side CV/CC controller, allowing the application to satisfy very precise output voltage and current regulations thanks to the digital trimming technique employed. The primary side PWM controller is the L6566B. This device drives a TM flyback topology, the best fit for this type of application. Features The SEA01 is mounted on a small daughterboard Universal input mains range: 90 to 264 Vac, that includes a connector to communicate, via IC 45 to 66 Hz protocol, with an external trimming tool. This 65 W continuous output power evaluation board can therefore be useful also as Precise output levels: a means to test the benefits of digital trimming in CV: 19 V 0.1% a real application. The SEA01, housed in an SO8 CC: 3.75 A 1.67% package, is a CV/CC controller which includes 2 No load consumption < 100 mW 230 Vac transconductance op-amps and 2 voltage Average efficiency > 89% references, digitally trimmable using an IC Full set of protection features interface. ST also offers an advanced trimming EMI: in accordance with EN55022 - class B board (STEVAL-PCC019V1) that allows users to Safety: in accordance with EN60950 perform all the trimming operations (including PCB: CEM-1, single side 35 m automatic trimming) using a standard Windows - Board size: 58 x 121 mm, 25 mm height based PC. RoHS compliant November 2014 DocID027028 Rev 2 1/5 www.st.com For further information contact your local STMicroelectronics sales office + ~ Schematic diagram STEVAL-ISA161V1 1 Schematic diagram Figure 1: STEVAL-ISA161V1 circuit schematic (part 1) M KDS 1,5 / 2-3.8 1 100u - 25 V 1000u - 25 V 1000u - 25 V 1 2 4 3 GSPG1010141200SG 2/5 DocID027028 Rev 2 F1F1 D1D1 339922//TTEE0055 -- 44AA L1L1 GGBBUU44JJ J1J1 HHFF22882266--220033YY11RR55--TT0011 MMKKDDSS 11,,55// 22--55..0088 C6C6 2 150N150N C1C1 C4C4 22NN22 1 100N100N JPJPXX11 C2C2 112200uuFF -- 440000VV ~ 90-264Vac R2R2 NNTTCC 11RR--SS223377 D7D7 DD1133 CC1122 R7R7 SS0077MM SS0077MM 11NN00 33RR99 RR1100 R6R6 33MM99 33RR99 L2L2 JPJPXX22 19V 3.42A D2D2 11007711..00008833 SSTTPPSS2200HH110000CCFFPP D6D6 JJPPXX44 R4R4 RR1122 C3C3 D4D4 R5R5 22KK22 T1T1 33MM99 333300ppFF -- 22kVkV 11..55KKEE330000AA BBZZVV5555--BB1188 100K100K 11997722..00000055 J2J2 Q4Q4 RR2200 1 R9R9 CC1100 2 BBCC884477CC 680K680K C7C7 C8C8 Q2Q2 RR2222 C27 11KK88 BBCC884477CC NMNM 100N 1 Q3Q3 10 RR4488 RR1111 9 BBCC884477CC NMNM 91K91K CC1133 RR2211 D5D5 R8R8 RR1199 22N22N 180K180K SS11MM 44KK77 22KK77 D3D3 8 DD1144 DD1122 SSTTPPSS2200HH110000CCFFPP 2 7 LL4148LL4148 CC1111 SSTTTTHH110022AA 4477uu -- 5500VV RR3311 RR000088 RR1177 RR2244 HHSS22 470R470R 66RR88 HHEEAATT--SSIINNKK 6 U2U2 L6566BL6566B CC1144 22NN22 RR1133 5 D9D9 NMNM Q1Q1 1 16 SSTTFF77NNMM8800 C5C5 HV AC OK JPJPXX33 CC1166 22NN22 22NN22 NMNM 2 15 N.C. VFF RR1144 HHSS11 J7J7 3 14 33R33R HHEEAATT--SSIINNKK 1 GND SS RR1155 RR2233 CC1177 100K100K IISSEENN 12K12K 4 13 100N100N DD1100 RR2288 GD OSC LL4148LL4148 11KK00 U1U1 SSFFHH661177AA--44 5 12 J6J6 VCC MODE/SC C9C9 1 4477uu -- 5500VV RR1166 6 11 JJPP22 RR3355 VVOOUUTT 00RR3333 FMOD ZCD CC1188 39K39K 100N100N RR4411 7 10 NN..MM.. CS VREF J5J5 1 8 9 DIS COMP CC2200 GGNNDD 330pF330pF CC3300 RR2266 47pF47pF 15K15K J4J4 RR4422 1 1K1K RR3322 OOPPTTOO 12K12K JJPPXX55 CC2222 RR4400 R3R3 RR3344 330pF330pF 100K100K MM5577770033 CC1199 CC2288 NMNM 100N100N 10N10N RR3399 Q6Q6 NMNM NMNM