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TOP242 Datenblatt(PDF) 16 Page - Power Integrations, Inc. |
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TOP242 Datenblatt(HTML) 16 Page - Power Integrations, Inc. |
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16 / 52 page ![]() TOP242-250 O 11/05 16 Typical Uses of LINE-SENSE (L) and EXTERNAL CURRENT LIMIT (X) Pins (cont.) X PI-2625-040501 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 PI-2621-040501 DC Input Voltage + - D S C CONTROL L 47 k Ω QR RMC 45 k Ω QR can be an optocoupler output or can be replaced by a manual switch. ON/OFF X ON/OFF 47 k Ω PI-2626-040501 DC Input Voltage + - D S C RIL QR 12 k Ω For RIL = ILIMIT = 69% 25 k Ω For RIL = ILIMIT = 43% QR can be an optocoupler output or can be replaced by a manual switch. CONTROL PI-2627-040501 DC Input Voltage + - D S C CONTROL L 47 k Ω QR RMC 45 k Ω QR can be an optocoupler output or can be replaced by a manual switch. ON/OFF X RIL PI-2622-040501 DC Input Voltage + - D S C CONTROL L 47 k Ω 2 M Ω QR RLS ON/OFF For RLS = 2 MΩ VUV = 100 VDC VOV = 450 VDC QR can be an optocoupler output or can be replaced by a manual switch. X ON/OFF 47 k Ω PI-2628-040501 DC Input Voltage + - D S C CONTROL L RIL RLS QR 2 M Ω VUV = IUV x RLS VOV = IOV x RLS DCMAX@100 VDC = 78% DCMAX@375 VDC = 38% 12 k Ω For RIL = ILIMIT = 69% QR can be an optocoupler output or can be replaced by a manual switch. Figure 22. Active-on (Fail Safe) Remove ON/OFF. Figure 23. Active-off Remote ON/OFF. Maximum Duty Cycle Reduced. Figure 24. Active-on Remote ON/OFF with Externally Set Current Limit. Figure 25. Active-off Remote ON/OFF with Externally Set Current Limit. Figure 26. Active-off Remote ON/OFF with LINE-SENSE. Figure 27. Active-on Remote ON/OFF with LINE-SENSE and EXTERNAL CURRENT LIMIT. |
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