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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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TOP264VG-TL датащи(PDF) 14 Page - Power Integrations, Inc. |
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TOP264VG-TL датащи(HTML) 14 Page - Power Integrations, Inc. |
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14 / 40 page  Rev. F 05/15 14 TOP264-271 www.power.com Typical Uses of VOLTAGE MONITOR (V) and EXTERNAL CURRENT LIMIT (X) Pins (cont.) X PI-5465-061009 DC Input Voltage + - D S C 2.5 M Ω RLS 6 k Ω RIL 100% @ 100 VDC 53% @ 300 VDC ILIMIT = ILIMIT = CONTROL X PI-5466-061009 DC Input Voltage + - D S C ON/OFF 47 K Ω QR can be an optocoupler output or can be replaced by a manual switch. QR CONTROL X ON/OFF 16 k Ω PI-5531-072309 DC Input Voltage + - D S C RIL QR 12 k Ω For RIL = ILIMIT = 61% 19 k Ω For RIL = ILIMIT = 37% QR can be an optocoupler output or can be replaced by a manual switch. CONTROL Figure 19. Current Limit Reduction with Line Voltage. Figure 20. Active-On (Fail Safe) Remote-ON/OFF, and Latch Reset. Figure 21. Active-On Remote-ON/OFF with Externally Set Current Limit, and Latch Reset X ON/OFF 16 k Ω PI-5467-061009 DC Input Voltage + - D S C CONTROL V RIL RLS QR 4 M Ω VUV = IUV × RLS + VV (IV = IUV) VOV = IOV × RLS + VV (IV = IoV) DCMAX@100 VDC = 76% DCMAX@375 VDC = 41% 12 k Ω For RIL = ILIMIT = 61% QR can be an optocoupler output or can be replaced by a manual switch. X DC Input Voltage + - D S C CONTROL V RIL RLS 12 k Ω 4 M Ω VUV = IUV x RLS + VV (IV = IUV) VOV = IOV x RLS + VV (IV = IoV) For RLS = 4 MΩ DCMAX @ 100 VDC = 76% DCMAX @ 375 VDC = 41% For RIL = 12 kΩ ILIMIT = 61% See Figure 37 for other resistor values (RIL) to select different ILIMIT values. VUV = 102.8 VDC VOV = 451 VDC Figure 22. Active-On Remote-ON/OFF with Line-Sense and External Current Limit, and Latch Reset. Figure 23. Line Sensing and Externally Set Current Limit. Figure 24. Externally Set Current Limit, Fast AC Latch Reset and Brown-Out. X AC Input R1 4 M Ω 1N4007 C1 47 nF PI-5652-110609 + - D S C RIL QR Typ. 65 VAC brownout threshold. <3 s AC latch reset time. Higher gain QR allows increasing R1/ decreasing C1 for lower no-load input power. CONTROL R2 39 k Ω DC Input Voltage |
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