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NQB-999DMC-DBNJ-000-ESA Datasheet(PDF) 10 Page - CUI INC |
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NQB-999DMC-DBNJ-000-ESA Datasheet(HTML) 10 Page - CUI INC |
10 / 36 page cui.com date 02/20/2013 │ page 10 of 36 CUI Inc │ SERIES: NQB-D │ DESCRIPTION: FULLY REGULATED ADVANCED BUS CONVERTERS Electrical Specification 12.0 V, 39 A / 468 W T P1, TP3 = -40 to +90ºC, VI = 40 to 60 V, sense pins connected to output pins unless otherwise specified under Conditions. Typical values given at: T P1, TP3 = +25°C, VI = 53 V, max IO, unless otherwise specified under Conditions. Additional C out = 3.9 mF, Configuration File: 19010-CDA 102 0314/002 Note 1: OCP in hic-up mode 2: Low ESR-value 3: C out = 100 µF, external capacitance 4: Sink current drawn by external device connected to the RC pin. Minimum sink current required guaranteeing activated RC function. parameter conditions/description min typ max units input voltage range (V I) 40 60 V turn-off input voltage (V Ioff) decreasing input voltage 36 37 38 V turn-on input voltage (V Ion) increasing input voltage 38 39 40 V internal input capacitance (C I) 18 μF output power (P O) 0 468 W efficiency (η) 50% of max I O max I O 50% of max I O, VI = 48 V max I O, VI = 48 V 96.7 95.7 96.8 95.6 % % % % power dissipation (P d) max I O 21.2 30.5 W input idling power (P li) I O = 0 A, VI = 53 V 2.8 W input standby power (P RC) V I = 53 V (turned off with RC) 0.4 W default switching frequency (f s) 0-100% of max I O 133 140 147 kHz output voltage initial setting and accuracy (V Oi) T P1 = +25°C, VI = 53 V, IO = 39 A 11.88 12.0 12.12 V output adjust range (V O) see operating information 4.0 13.2 V output voltage tolerance band (V O) 0-100% of max I O 11.76 12.24 V line regulation (V O) max I O 31 60 mV load regulation (V O) V I = 53 V, 1-100% of max IO 5 25 mV load transient voltage deviation (V tr) V I = 53 V, load step 25-75-25% of max IO, di/dt = 1 A/μs ±0.4 V load transient recovery time (t tr) V I = 53 V, load step 25-75-25% of max IO, di/dt = 1 A/μs 150 µs ramp-up time (t r) - (from 10−90% of V Oi) 10-100% of max I O, TP1 = 25ºC, VI = 53 V 8 ms start-up time (t s) - (from VI connection to 90% of V Oi) 10-100% of max I O, TP1 = 25ºC, VI = 53 V 24 ms V I shut-down fall time (tf) - (from V I off to 10% of VO) max I O I O = 0 A, CO = 0 mF 3 7 ms s RC start-up time (t RC) max I O 12 ms RC shut-down fall time (t RC) - (from RC off to 10% of V O) max I O I O = 0 A, CO = 0 mF 4.5 7 ms s output current (I O) 0 39 A current limit threshold (I lim) V O = 10.8 V, TP1, TP3 < max TP1, TP3 41 44 47 A short circuit current (I sc) T P1 = 25ºC, see Note 1 14 A recommended capacitive load (C out) T P1 = 25ºC, see Note 2 0.1 3.9 6 mF output ripple & noise (V Oac) See ripple & noise section, max I O , see Note 3 50 110 mVp-p over voltage protection (OVP) T P1, TP3 = 25°C, VI = 53 V, 10-100% of max IO 15.6 V remote control (RC) sink current (note 4), see operating information trigger level, decreasing RC-voltage trigger level, increasing RC-voltage 2.6 2.9 0.7 mA V V |
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