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LES25A48-1V5J Datasheet(PDF) 1 Page - Emerson Network Power |
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LES25A48-1V5J Datasheet(HTML) 1 Page - Emerson Network Power |
1 / 3 page DC/DC CONVERTERS High Current, High Efficiency, Low Profile 1 2 YEAR WARRANTY NEW Product All specifications are typical at nominal input, full load at 25 °C ambient unless otherwise stated SPECIFICATIONS File Name: eighth_brick.pdf Rev (07): 16 Nov 2005 • Ultra-high efficiency topology • Industry standard eighth brick footprint (identical to quarter-brick pinout) • Low profile through-hole version • Low profile with 38% space savings over other quarter-brick brick converters • Wide ambient temperature range, -40 ºC to +85 ºC • 80% to 110% output trim • Monotonic start-up in normal and prebiased loads • Basic insulation system • Overvoltage and overtemperature protection • Secondary side control, no optocouplers, fast transient response • 100 V, 100 ms input voltage transient rated • Available RoHS compliant Eighth-Brick Series Single output This is a new high efficiency, open-frame, low profile, single board, isolated dc-dc converter series in an industry standard eight-brick footprint that provides up to 100 W of output power. The series delivers very high output current at low voltages, and excellent useable power for today’s high performance applications. The series features an input voltage range of 18 Vdc to 36 Vdc and 36 Vdc to 75 Vdc and is available with output voltages of 1.2 V, 1.5 V 1.8 V, 2.5 V, 3.3 V and 5.0 V. The output voltage is adjustable from 80% to 110% of the nominal value. The series also has a remote ON/OFF capability. Overcurrent, overvoltage and overtemperature protection features are included as standard. Full international safety approval including EN60950-1 VDE and UL/cUL60950, reduces compliance costs and time to market. EMC CHARACTERISTICS Immunity: ESD air enclosure EN61000-4-2 8 kV/6 kV(O/P within spec.) Radiated field enclosure EN61000-4-3 10 V/m (O/P within spec.) Conducted EN61000-4-6 10 V (O/P within spec.) Input transients 100 V, 100 ms GENERAL SPECIFICATIONS Basic insulation Input/output 2250 Vdc Switching frequency Fixed 480 kHz Approvals and (See Note 3) EN60950-1 VDE standards UL/cUL 60950 Material flammability UL94V-0 Weight 21 g (0.73 oz) MTBF Telcordia Tech SR-332 4,034,120 hours ENVIRONMENTAL SPECIFICATIONS Thermal performance Operating ambient. -40 °C to +85 °C temperature Non-operating -55 °C to +125 °C PROTECTION Shortcircuit Continuous Overvoltage Non-latching Thermal 125 ºC hot spot temperature with automatic recovery International Safety Standard Approvals UL/cUL CAN/CSA 22.2 No. 60950-00 : UL 60950 File No. E135734/60950 VDE Certificate No. 40005017. File No. 10401-3336-0197 CB Report and Certificate to IEC60950, Certificate No. DE1-31103 Patent No. 6,765,810 Other Patents Pending OUTPUT SPECIFICATIONS Voltage adjustability 80% to 110% Minimum load 0% Overshoot At turn-on and turn-off None Undershoot None Transient response 60 mV to 150 mV typ. deviation (See Note 1) 20 µs recovery INPUT SPECIFICATIONS Input voltage range 24 V nominal 18-36 Vdc 48 V nominal 36-75 Vdc Input current No load 50 mA Remote OFF 5 mA Active high remote ON/OFF Logic compatibility Open collector ref to -input ON Open circuit or >2.4 Vdc OFF <0.4 Vdc Undervoltage Lockout 24 Vin Power up 17.5 V (typ.) Power down 16.5 V (typ.) 48 Vin Power up 35.5 V (typ.) Power down 33.5 V (typ.) 48 Vin Start-up time Power up 15 ms (typ.) (See Note 2) Remote ON/OFF 15 ms (typ.) |
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