STEVAL-ISA114V1

STEVAL-ISA114V1 5 V, 160 mA non-isolated buck converter using VIPer™ Plus VIPER06XS Data brief Description The STEVAL-ISA114V1 evaluation board describes a 5 V- 0.15 A power supply set in buck topology with the VIPer06XS, a new off-line high voltage converter by STMicroelectronics, specifically developed for non-isolated SMPS. The features of the device include an 800 V avalanche rugged power section, PWM operation at 30 kHz with frequency jittering for lower EMI, limiting current with adjustable set point, onboard soft-start, safe auto-restart after a fault condition and low standby power consumption. The available protection includes a thermal shutdown with hysteresis, delayed overload protection and open loop failure protection. All protection is auto-restart mode. Features      Universal input mains range:  input voltage: 90 - 264 VAC  frequency: 45 - 65 Hz Single-output voltage:  5 V @ 0.16 A continuous operation Fully protected against faults (overload, feedback disconnection and overheating) EMI: according to EN55022-Class-B RoHS compliant September 2016 DocID025045 Rev 2 For further information contact your local STMicroelectronics sales office 1/8 www.st.com Adapter features 1 STEVAL-ISA114V1 Adapter features The electrical specifications are given in Table 1: "Electrical specifications", the schematic in Figure 1: "Circuit schematic", and the bill of material in Table 2: "Bill of material". Table 1: Electrical specifications Parameter Symbol Value VIN [80 VAC; 265 VAC] Output voltage VOUT 5V Max. output current IOUT 0.16 A Precision of output regulation ΔVOUT_LF ± 5% High frequency output voltage ripple ΔVOUT_HF 50 mV Max. ambient operating temperature TAMB 60 ºC Input voltage range Table 2: Bill of material 2/8 Name Value Description C1 2.2 μF, 400 V Electrolytic capacitor Saxon C2 2.2 μF, 400 V Electrolytic capacitor Saxon C3 2.2 μF, 25 V Ceramic capacitor SMD: 0805 CFB Not mounted Ceramic capacitor SMD: 0805 Cf 100 nF, 50 V Ceramic capacitor SMD: 0805 Cc Not mounted Ceramic capacitor SMD: 0805 C7 22 nF, 25 V Ceramic capacitor SMD: 0805 Murata C8 100 nF, 50 V Ceramic capacitor SMD: 0805 Murata C9 100 µF, 25 V Electrolytic capacitor D1 1N4007 High voltage rectifier DO-41 Fairchild D3 STTH1L06 High voltage ultra fast rectifier SMB (SOD87) ST D4 STTH1L06 High voltage ultra fast rectifier SMB (SOD87) ST Daux Not mounted Small signal diode IC VIPER06XS High voltage converter SSO-10 ST L1 1 mH Input filter inductor SMD Epcos L2 RFB0810-681 0.68 mH power inductor Coilcraft R1 22 ohm 1 W resistor Panasonic R3 1 kohm, 1% 1/4 W resistor SMD: 0805 Panasonic R4a 1.5 kohm, 1% 1/4 W resistor SMD: 0805 Panasonic R4b 22 kohm 1/4 W resistor SMD: 0805 R5a 15 kohm 1/4 W resistor SMD: 0805 R5b 0 ohm, 1% 1/4 W resistor SMD: 0805 DocID025045 Rev 2 Footprint Manufacturer Murata Murata Rubycon, ZL series Panasonic STEVAL-ISA114V1 Adapter features Name Value Description Footprint R6 Not mounted 1/4 W resistor SMD: 0805 Rbl 10 kohm, 1% 1/4 W resistor SMD: 0805 Manufacturer Panasonic Figure 1: Circuit schematic AC IN R1 D1 L1 R5a R5b DRAIN DRAIN DRAIN DRAIN DRAIN R4a C8 VIPer06XS C1 D3 C2 GND VDD LIM FB COMP R4b CFB C3 Cf Cc R6 C7 D4 GND R3 L2 Vout C9 Rbl GND AM16734v1 DocID025045 Rev 2 3/8 Layout 2 STEVAL-ISA114V1 Layout Figure 2: Layout (top) Figure 3: Layout (bottom) 4/8 DocID025045 Rev 2 STEVAL-ISA114V1 Layout Figure 4: Thermal measurement @ VIN = 80 VAC, full load (170 mA), 3.3 kohm bleeder Figure 5: Thermal measurement @ VIN = 115 VAC, full load (170 mA), 3.3 kohm bleeder Figure 6: Thermal measurement @ VIN = 230VAC, full load (170 mA), 3.3 kohm bleeder DocID025045 Rev 2 5/8 Layout STEVAL-ISA114V1 Figure 7: Thermal measurement @ VIN = 265VAC, full load (170 mA), 3.3 kohm bleeder 6/8 DocID025045 Rev 2 STEVAL-ISA114V1 3 Revision history Revision history Table 3: Document revision history Date Version Changes 24-Jul-2013 1 Initial release. 06-Sep-2016 2 Updated board photo on the cover page. DocID025045 Rev 2 7/8 STEVAL-ISA114V1 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 8/8 DocID025045 Rev 2