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HV9904LG Datasheet(PDF) 5 Page - Supertex, Inc |
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HV9904LG Datasheet(HTML) 5 Page - Supertex, Inc |
5 / 5 page Prepare by Telecom Group 5 Rev. D 3/29/2002 Supertex, Inc. 1235 Bordeaux Drive, Sunnyvale, CA 94089 TEL: (408) 744-0100 FAX: (408) 222-4895 www.supertex.com HV9904 Application Information - Continued Non-Isolated Constant Voltage Output PWM PS GATE +Vin Vdd AGND HV9904 1mH 220uH 100uF 10VDC to 400VDC or VAC to 265VAC 25k VN2460N8 or IRFBC30AS 1uF 0.01uF PGND NS 0.1uF C1 D1 D2 D4 D3 C2 L1 L2 C3 C4 MURS120T3 D6 D7 R1 M1 U1 400V 1N4007 D5 MURS120T3 MURS120T3 Universal Input Power Supply R2 25k -5V This circuit provides a non-isolated constant voltage output. The value of C4 capacitor controls the peak-to-peak ripple, which decreases with increasing capacitor value. The following BOM provides a list of suggested components. Item Number Quantity Reference Value Manufacturer 1 1 C1 0.1 µF, 500V Vishay 2 1 C2 1 µF, 15V Vishay 3 1 C3 0.01 µF, 500V Vishay 4 1 C4 100 µF, 6.3V Panasonic 5 4 D1, D2, D3, D4 1N4007 On Semiconductor 6 3 D5, D6, D7 MURS120T3 On Semiconductor 7 1 L1 DO1608C-105 Coilcraft 8 1 L2 DO1608C-224 Coilcraft 9 1 M1 VN2460N8 Supertex 10 1 R1 25k Ω 11 1 R2 25k Ω 12 1 U1 HV9904LG Supertex Total Part Count 17 |
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