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PEE1100-12-054RA Datasheet(PDF) 8 Page - Bel Fuse Inc. |
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PEE1100-12-054RA Datasheet(HTML) 8 Page - Bel Fuse Inc. |
8 / 25 page 8 PFE1100-12-054xA tech.support@psbel.com Figure 17. Load transient V1, 40 to 85A (500μs/div) CH2: V1 (200mV/div), CH4: I1 (20A/div) Figure 18. Load transient V1, 85 to 40A (500μs/div) CH2: V1 (200mV/div), CH4: I1 (20A/div) PARAMETER DESCRIPTION / CONDITION MIN NOM MAX UNIT F Input Fuses (L+N) Not user accessible, quick-acting (F) 16 A V1 OV OV Threshold V1 13.3 14.5 VDC tOV V1 OV Latch Off Time V1 1 ms VSB OV OV Threshold VSB 115 125 % VSB tOV VSB OV Latch Off Time VSB 1 ms IV1 lim Current Limit V1 PFE1100-12-054NA Vi > 115VAC, Ta < 45°C Vi > 90VAC, Ta < 45°C 93.5 74 100 78 A Current Limit V1 PFE1100-12-054RA Vi > 180VAC, Ta < 45°C Vi > 90VAC, Ta < 45°C 92 72 100 78 IV1 SC Max Short Circuit Current V1 V1 < 3V 110 A tV1 SC Short Circuit Regulation Time V1 < 3V, time until IV1 is limited to < IV1 sc 2 ms tV1 SC off Short Circuit Latch Off Time Time to latch off when in short circuit 200 ms TSD Over Temperature on Heat Sinks Automatic shut-down 115 °C 6.1 OVERVOLTAGE PROTECTION The PFE front-ends provide a fixed threshold overvoltage (OV) protection implemented with a HW comparator. Once an OV condition has been triggered, the supply will shut down and latch the fault condition. The latch can be unlocked by disconnecting the supply from the AC mains or by toggling the PSON_L input. 6.2 VSB UNDERVOLTAGE DETECTION Both main and standby outputs are monitored. LED and PWOK_H pin signal if the output voltage exceeds ±5% of its nominal voltage. Output undervoltage protection is provided on the standby output only. When VSB falls below 75% of its nominal voltage, the main output V1 is inhibited. 6.3 CURRENT LIMITATION MAIN OUTPUT The main output exhibits a substantially rectangular output characteristic controlled by a software feedback loop. If it runs in current limitation and its voltage drops below ~10.0 VDC for more than 200 ms, the output will latch off (standby remains on). 6 |
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