STEVAL-ISA161V1

STEVAL-ISA161V1 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            Universal input mains range: 90 to 264 Vac, 45 to 66 Hz 65 W continuous output power Precise output levels:  CV: 19 V ± 0.1%  CC: 3.75 A ± 1.67% No load consumption < 100 mW @ 230 Vac Average efficiency > 89% Full set of protection features EMI: in accordance with EN55022 - class B Safety: in accordance with EN60950 PCB: CEM-1, single side 35 µm Board size: 58 x 121 mm, 25 mm height RoHS compliant November 2014 The SEA01 is mounted on a small daughterboard that includes a connector to communicate, via I²C protocol, with an external trimming tool. This evaluation board can therefore be useful also as a means to test the benefits of digital trimming in a real application. The SEA01, housed in an SO8 package, is a CV/CC controller which includes 2 transconductance op-amps and 2 voltage references, digitally trimmable using an I²C interface. ST also offers an advanced trimming board (STEVAL-PCC019V1) that allows users to perform all the trimming operations (including automatic trimming) using a standard Windows®based PC. DocID027028 Rev 2 For further information contact your local STMicroelectronics sales office 1/5 www.st.com 2/5 C18 100N 90-264Vac 1 2 C9 47u - 50V R2 NTC 1R-S237 C6 150N DocID027028 Rev 2 C28 10N DIS CS FMOD VCC GD GND R32 12K R23 12K Q6 NM JP2 C17 100N R34 NM R39 NM D10 LL4148 C22 330pF R28 1K0 R14 33R R42 1K 0R33 R16 R15 100K C30 47pF HS1 HEAT-SINK Q1 STF7NM80 R24 6R8 R26 15K R35 39K JPX3 C5 2N2 U1 SFH617A-4 5 6 2 T1 1972.0005 8 7 10 9 4 3 C19 100N 9 10 11 12 13 14 R13 NM D12 STTH102A 1 2 JPX5 COMP VREF ZCD MODE/SC OSC SS 15 NM D9 C11 47u - 50V D5 S1M D4 1.5KE300A 1 R3 M57703 8 7 6 5 4 3 VFF 2N2 C16 R17 470R D14 LL4148 C3 330pF - 2kV R7 3R9 R41 N.M. C7 HS2 HEAT-SINK D3 STPS20H100CFP D2 STPS20H100CFP C12 1N0 C8 R6 3R9 V N.C. C14 2N2 R21 180K JPX2 C1 2N2 V 1000u - 25 2 16 2K7 R19 R20 680K C2 120uF - 400V 1000u - 25 AC_OK C13 22N JPX4 _ R8 4K7 R9 1K8 BZV55-B18 D6 Q3 BC847C R5 100K Q2 BC847C R4 2K2 R22 NM R31 R008 L2 1071.0083 C10 100u - 25 HV R11 91K D1 GBU4J 1 1 1 1 OPTO J4 GND J5 VOUT J6 ISEN J7 C27 100N 1 2 J2 19V@3.42A M KDS 1,5 / 2-3.8 R40 100K C20 330pF R48 NM R12 3M9 ~ Q4 BC847C S07M 3M9 D13 U2 L6566B JPX1 S07M R10 C4 100N D7 1 L1 HF2826-203Y1R5-T01 1 ~ F1 392/TE05 - 4A + J1 MKDS 1,5/ 2-5.08 Schematic diagram STEVAL-ISA161V1 Schematic diagram Figure 1: STEVAL-ISA161V1 circuit schematic (part 1) 1 V GSPG1010141200SG R1 3K9 DocID027028 Rev 2 R7 120K R5 47K C5 N.M. R8 7K5 C6 470N C8 2N2 R9 22K 4 3 2 1 J4 GND SEA01 GND Isense Vctrl Clock U1 C2 N.M. 1 R2 N.M. 1 R4 1K0 1 R3 47K J2 VOUT C1 N.M. J3 ISENSE 1 J1 OPTO Motherboard interface Vcc OUT1 OUT2 Data 5 6 7 8 C7 100N R6 22R C3 N.M. C4 N.M. D2 1N4148WS D1 1N4148WS J5 Trimming interface 1 2 3 4 STEVAL-ISA161V1 Figure 2: STEVAL-ISA161V1 circuit schematic (part 2) Schematic diagram GSPG1010141425SG 3/5 Revision history 2 STEVAL-ISA161V1 Revision history Table 1: Document revision history 4/5 Date Rev Changes 22-Oct-2014 1 First release. 06-Nov-2014 2 Updated titles in figure 1 and figure 2. DocID027028 Rev 2 STEVAL-ISA161V1 IMPORTANT NOTICE – PLEASE READ CAREFULLY STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing orders. ST products are sold pursuant to ST’s terms and conditions of sale in place at the time of order acknowledgement. Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of Purchasers’ products. No license, express or implied, to any intellectual property right is granted by ST herein. Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product. ST and the ST logo are trademarks of ST. All other product or service names are the property of their respective owners. Information in this document supersedes and replaces information previously supplied in any prior versions of this document. © 2014 STMicroelectronics – All rights reserved DocID027028 Rev 2 5/5