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LS4000 Datasheet(PDF) 24 Page - Power-One |
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LS4000 Datasheet(HTML) 24 Page - Power-One |
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24 / 27 page ![]() Cassette Style 100 Watt AC-DC Converters S Series PFC Edition 01/01.2001 24/27 0 1 0.95 0 U ci [V DC] 0 t t t t low min 4 t low min 4 t high min t h 1 358 355 Input voltage failure Switch-on cycle Input voltage sag Switch-on cycle and subsequent input voltage failure U D high U D low U D 0 JFET NPN t U o1 U o1 nom U D high U D low U D t low min 4 t h 1 0 0 U D high U D low U D 0 JFET NPN U o1 U D high U D low U D t low min 4 U to Output voltage failure 0 I D high I D low I D t 0 I D high I D low I D t t t t 2 33 33 U o1 nom U to +Uho Input voltage monitoring Output voltage monitoring 11044 1 Hold-up time see section Electrical Input Data. 2 With output voltage monitoring, hold-up time th = 0. 3 The signal will remain high if the D output is connected to an external source. 4 tlow min = 100...170 ms, typically 130 ms. Fig. 38 Relationship between Uci, Uo1, UD, Uo1/Uo nom versus time D-signal with respect to input and output voltage versus time: |
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