STEVAL-ISA193V1

STEVAL-ISA193V1 15 W, 5 V - 3 A output CC primary sensing USB adapter based on STCH02 Data brief Description The STEVAL-ISA193V1 evaluation board implements a 15 W USB adapter with primary sensing CC feature, based on the STCH02 current mode controller designed for offline quasi-resonant flyback converters, capable of providing constant output current (CC) regulation using primary-sensing feedback. The IC embeds a 650 V, non-dissipative, HV startup cell, which, along with the extremely low quiescent current and burst-mode management, helps minimize residual input consumption, thus achieving less than 10 mW under no-load conditions. The adapter is designed to meet the most stringent energy saving recommendations (EuCoC rev. 5 – Tier 2 and EPS of DOE USA) as well as EN55022-Class-B Conducted noise emissions. Features         Universal AC Main Input voltage range : 90 VAC to 264 VAC Output range: 5 V - 3 A continuous operation Constant voltage (CV) and constant current (CC) operation with CC primary sensing Input power in standby < 10 mW at 230 VAC Average efficiency: > 81.84%, complies with EuCoC rev. 5 – Tier 2 and EPS of DOE USA EMI: According to EN55022-Class-B Small form factor: (44 x 35 x 15 mm) RoHS compliant August 2016 The extremely small form factor and the output USB connector makes this reference design suitable for small USB chargers and adapters for mobile phones, tablets and other hand held equipment. DocID029594 Rev 1 For further information contact your local STMicroelectronics sales office 1/6 www.st.com 2/6 AC IN AC IN DocID029594 Rev 1 OPTO1 SFH610A-2 R5 24k R4 100k 20 NTC 2A F1 R14 56k ZCD 2.5V STCH02 IC1 BR R6 30k C6 33 nF FB HV C5 2.2 nF C12 100pF C1 12 uF GND D2 C3 1nF R7 0.47 R15 3.3 GD BAT41ZFILM C4 22 uF SENSE CURRENT CONTROL VDD C2 12 uF 10 R8 Q1 STD7N80K5 3 R3 MRA4007T3G D1 R2 220 R1 220k D3 2.2 nF C11 OPTO SFH610A-2 FERD30S50DJF TF 7508111123 rev. 6A 82k R13 IC2 TS432 R9 1k C7 560 uF R10 12k 10 nF C10 C8 560 uF R12 43k R11 130k GND C9 1uF 5V -3A 1 470 uH L1 Schematic diagrams STEVAL-ISA193V1 Schematic diagrams Figure 1: STEVAL-ISA193V1 circuit schematic main PSU GSPG2507161330SG STEVAL-ISA193V1 Schematic diagrams Figure 2: Output characteristic at 115 VAC 6 5 VOUT [V] 4 3 2 1 0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 IOUT [A] GSPG2507161340SG Figure 3: Output characteristic at 230 VAC 6 5 VOUT [V] 4 3 2 1 0 0.0 0.5 1.0 1.5 2.0 IOUT [A] DocID029594 Rev 1 2.5 3.0 3.5 GSPG2507161350SG 3/6 Schematic diagrams STEVAL-ISA193V1 Figure 4: Efficiency vs. output power 87 86 85 Efficiency [%] 84 83 82 81 115Vac 230Vac average @115Vac average @230Vac EuCoC Tier 2 80 79 78 0 2 4 6 8 10 12 14 16 Output power [W] GSPG2507161400SG Table 1: Average efficiency of the rated output load Efficiency % of rated power 115 VAC 230 VAC 25 84.48% 81.71% 50 84.96% 83.63% 75 84.48% 83.98% 100 82.80% 84.58% Average 84.18% 83.47% EU Code of Conduct rev. 5 – Tier 2 limit : 81.84% Table 2: Efficiency at 10% of the rated output load Input voltage Efficiency 115 VAC 81.20% 230 VAC 77.01% EU Code of Conduct rev. 5 – Tier 2 limit : 72.48% Table 3: No load consumption 4/6 Input voltage Input power 115 VAC 7.3 mW 230 VAC 7.5 mW DocID029594 Rev 1 STEVAL-ISA193V1 2 Revision history Revision history Table 4: Document revision history Date Version 02-Aug-2016 1 Changes Initial release. DocID029594 Rev 1 5/6 STEVAL-ISA193V1 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. © 2016 STMicroelectronics – All rights reserved 6/6 DocID029594 Rev 1