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LS4301-7R 数据表(PDF) 11 Page - Power-One |
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LS4301-7R 数据表(HTML) 11 Page - Power-One |
11 / 27 page Cassette Style 100 Watt AC-DC Converters S Series PFC Edition 01/01.2001 11/27 0 t t 0 Inhibit 1 0.1 1 Uo/Uo nom tr tf 06001 Fig. 19 Output response as a function of inhibit control Auxiliary Functions i Inhibit for Remote On and Off Note: With open i input: Output is disabled ( Uo = off). The outputs of the module may be enabled or disabled by means of a logic signal (TTL, CMOS, etc.) applied between the inhibit input i and the negative pin of output 1 (Vo1–). In systems with several units, this feature can be used, for ex- ample, to control the activation sequence of the converters. If the inhibit function is not required, connect the inhibit pin 18 to pin 14 to enable the outputs (active low logic, fail safe). For output response refer to: Hold-up Time and Out- put Response. Vi+ Vi– Vo– i Vo+ Iinh Uinh 06031 1.6 0.8 0 –0.8 –50 Uinh [V] Iinh [mA] –30 0 –10 10 30 50 2.0 1.2 0.4 –0.4 Uinh = 0.8 V Uo = on Uo = off Uinh = 2.4 V Fig. 17 Definition of Uinh and Iinh. Fig. 18 Typical inhibit current Iinh versus inhibit voltage Uinh Table 5: Inhibit characteristics Characteristic Conditions min typ max Unit Uinh Inhibit Uo = on Ui min…Ui max –50 0.8 V voltage Uo = off 2.4 50 Iinh Inhibit current Uinh = 0 –400 µA tr Rise time 30 ms tf Fall time depending on Io Sense Lines (Only for single output units 5.1 V, 12 V, 15 V, 24 V) This feature enables for compensation of voltage drops across the connector contacts and if necessary, across the load lines. If the sense lines are connected at the load rather than directly at the connector, the user should ensure that Uo max (between Vo1+ and Vo1–) is not exceeded. We recommend connecting the sense lines directly at the fe- male connector. For further information, please refer to: Application Notes . To ensure correct operation, both sense lines (S+ and S–) should be connected to their respective power outputs (Vo1+ and Vo1–) and the voltage difference between any sense line and its respective power output pin (as meas- ured on the connector) should not exceed the following val- ues: Table 6: Maximum Voltage compensation allowed using sense lines Output Total voltage difference Voltage difference voltage between sense lines and between their respective outputs Vo– and S– 5.1 V <0.5 V <0.25 V 12 V, 15 V <1.0 V <0.25 V If the output voltages are increased above Uo nom via R-in- put control, option P setting, remote sensing or option T, the output currents must be reduced accordingly so that Po nom is not exceeded. Important: The output terminals Vo1+ and Vo1– must always be connected to the load before connecting the sense lines S+ and S–, otherwise the unit will be dam- aged. |
类似零件编号 - LS4301-7R |
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类似说明 - LS4301-7R |
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