поискавой системы для электроныых деталей |
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CD5.243 датащи(PDF) 7 Page - PULS GmbH |
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CD5.243 датащи(HTML) 7 Page - PULS GmbH |
7 / 22 page CD5.243 CD-Series DC/DC Converter 24V, 4A Peak current capability (up to several milliseconds) The DC/DC converter can deliver a peak current, which is higher than the specified short term current. This helps to start current demanding loads or to safely operate subsequent circuit breakers. The extra current is supplied by the output capacitors inside the DC/DC converter. During this event, the capacitors will be discharged and causes a voltage dip on the output. Detailed curves can be found in chapter 21.1. Peak current voltage dips typ. from 24V to 18V at 8A for 50ms, resistive load typ. from 24V to 12.5V at 16A for 2ms, resistive load typ. from 24V to 10V at 16A for 5ms, resistive load 6. HOLD-UP TIME The input side of the DC/DC converter is equipped with a bulk capacitor which keeps the output voltage alive for a certain period of time when the input voltage dips or is removed. The bulk capacitor can be discharged by loading the DC/DC converter on the output side or through a load which is parallel to the input. There is no protection in the DC/DC converter which prevents current from flowing back to the input terminals. If prevention is needed, an external diode should be used. Hold-up Time typ. 5.8ms input 12Vdc, output: 24Vdc, 2A, see Fig. 6-1 typ. 3.0ms input 12Vdc, output: 24Vdc, 4A, see Fig. 6-1 Fig. 6-1 Hold-up time vs. input voltage 0 1 2 3 4 6ms 910 11 12 14Vdc Input Voltage Hold-up Time (a) 24V, 2A, typ. (b) 24V, 2A, min. (c) 24V, 4A, typ. (d) 24V, 4A, min. 5 13 (a) (b) (c) (d) Fig. 6-2 Shut-down test setup Fig. 6-3 Shut-down behavior, definitions Load + - DC/DC Converter DC Source + - Input Output + - CD5 S1 - 10% Hold-up Time Output Voltage Intput Voltage S1 opens Note: At no load, the hold-up time can be up to several seconds. The green DC-ok lamp is also on during this time. Mar. 2016 / Rev. 1.3 DS-CD5.243-EN All parameters are specified at 24V, 4A, 12Vdc input voltage, 25°C ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com Phone +49 89 9278 0 Germany 7/22 |
Аналогичный номер детали - CD5.243 |
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Аналогичное описание - CD5.243 |
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