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Specifications
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Input
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Input Voltage Range
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48 VDC nominal (36 - 75 VDC). Can be configured as -48 VDC input
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Input Current
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9.2 A typical, 12.5 A max
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Input Reverse Voltage Protection
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Continuous protection with automatic recovery
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Undervoltage Lockout Protection
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32 - 36 VDC
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Output
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Output Voltage
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See Datasheet
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Output Voltage Trim
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±10% via potentiometer
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Minimum Load
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No minimum load required.
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Line Regulation
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±0.5% of nominal with input variation of 36-75V DC
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Load Regulation
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±1% of nominal with load variation 0-100%
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Setpoint Accuracy
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±1% of nominal with 48 VDC input and 50% load
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Turn-on Time
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1 s typical from application of DC input
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Transient Response
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<4% deviation with a 50-75-50% load change at 1 A/μs. Output returns to within 1% in less than 500 μs
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Ripple & Noise
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1% max pk-pk 20 MHz bandwidth, 0.1 μF capacitor connected across measurement points
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Overvoltage Protection
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115-140% of nominal, recycle input DC to reset
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Overcurrent Protection
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105-115% of max current
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Short Circuit Protection
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Continuous protection, trip and restart (Hiccup mode) characteristic
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Temperature Coefficient
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0.02%/°C (after 20 minute warm up)
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General
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Efficiency
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85% typical
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Isolation Voltage
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1500 VDC Input to Output, 1000 VDC Input to Ground, 500 VDC Output to Ground.
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Switching Frequency
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370 kHz typical
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Power Density
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11.1 W/In3
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Operating Temperature
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-10 °C to +50 °C with full load, derate linearly to 50% load at 70 °C forced cooled.
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Cooling
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>20 CFM forced airflow required -H versions have integrated fan
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Operating Humidity
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0 to 95% RH non condensing.
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Storage Temperature
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-40 °C to +80 °C.
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Operating Altitude
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3000m.
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Shock
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±3 shocks in each axis (total 18 shocks) 30 g 11ms (half sine).
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EMC and Safety
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Emissions
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Compliant with EN61204-3 2000, EN55022 class A conducted & radiated
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EFT/Burst
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Compliant with EN61000-4-4 level 1 Perf Criteria A
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Surge
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EN61000-4-5 level 1 Perf Criteria A,
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Conducted Immunity
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Compliant with EN61000-4-6 level 2 Perf Criteria A
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Safety Approvals
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UL60950-1 (2003), CE Marked to LVD
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