TECHNICAL SPECIFICATIONS
(TA=25°C, airflow rate=300 LFM, Vin=48Vdc, nominal Vout unless otherwise noted.)
| PARAMETER |
| NOTES and CONDITIONS | S48SP3R310 (Standard) | ||||||
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| Min. | Typ. | Max. |
| Units | ||
| ABSOLUTE MAXIMUM RATINGS |
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| Input Voltage |
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| Continuous |
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| 80 |
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| Vdc |
| Transient (100ms) |
| 100ms |
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| 100 |
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| Vdc |
| Operating Temperature |
| Refer to Figure 20 for the measuring point |
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| 110 |
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| °C | |
| Storage Temperature |
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| 125 |
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| °C | |
| Input/Output Isolation Voltage |
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| 2250 |
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| Vdc |
| INPUT CHARACTERISTICS |
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| Operating Input Voltage |
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| 36 |
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| 75 |
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| Vdc |
| Input |
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| 32.5 |
| 34 | 35.5 |
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| Vdc | |
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| 30.5 |
| 32 | 33.5 |
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| Vdc | |
| Lockout Hysteresis Voltage |
|
| 1.0 |
| 2 | 3.0 |
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| Vdc |
| Maximum Input Current |
| 100% Load, 36Vin |
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| 1.10 |
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| A |
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| 40 |
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| mA | |
| Off Converter Input Current |
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| 10 |
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| mA |
| Inrush Current (I2t) |
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| 0.01 |
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| A2s |
| Input |
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| 10 |
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| mA | |
| Input Voltage Ripple Rejection |
| 120 Hz |
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| 60 |
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| dB |
| OUTPUT CHARACTERISTICS |
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| Output Voltage Set Point |
| Vin=48V, Io=Io.max, Tc=25°C | 3.25 |
| 3.3 | 3.35 |
|
| Vdc |
| Output Voltage Regulation |
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| Over Load |
| Io=Io, min to Io, max |
|
| ±3 | ±10 |
|
| mV |
| Over Line |
| Vin=36V to 75V |
|
| ±3 | ±10 |
|
| mV |
| Over Temperature |
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| ±33 |
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| mV | |
| Total Output Voltage Range |
| Over load, line and temperature | 3.2 |
|
| 3.4 |
|
| V |
| Output Voltage Ripple and Noise |
| 5Hz to 20MHz bandwidth |
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| Full Load, 1µF ceramic, 10µF tantalum |
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| 30 | 60 |
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| mV | |
| RMS |
| Full Load, 1µF ceramic, 10µF tantalum |
|
| 10 | 20 |
|
| mV |
| Operating Output Current Range |
|
| 0 |
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| 10 |
|
| A |
| Output DC |
| Output Voltage 10% Low | 110 |
|
| 140 |
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| % |
| DYNAMIC CHARACTERISTICS |
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| Output Voltage Current Transient |
| 48V, 10µF Tan & 1µF Ceramic load cap, 0.1A/µs |
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| Positive Step Change in Output Current |
| 50% Io.max to 75% Io.max |
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| 100 |
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| mV |
| Negative Step Change in Output Current |
| 75% Io.max to 50% Io.max |
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| 100 |
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| mV |
| Settling Time (within 1% Vout nominal) |
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| 50 |
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| us |
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| |
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| 15 |
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| ms | |
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| 15 |
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| ms | |
| Maximum Output Capacitance |
| Full load; 5% overshoot of Vout at startup |
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| 5000 |
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| µF |
| EFFICIENCY |
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| 100% Load |
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| 90.0 |
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| % | |
| 60% Load |
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| 89.0 |
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| % | |
| ISOLATION CHARACTERISTICS |
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| Input to Output |
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| 2250 |
|
| Vdc |
| Isolation Resistance |
|
| 10 |
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| MΩ |
| Isolation Capacitance |
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| 1000 |
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| pF |
| FEATURE CHARACTERISTICS |
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| Switching Frequency |
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| 400 |
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| kHz |
| ON/OFF Control, Negative Remote On/Off logic |
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| Logic Low (Module On) |
| Von/off |
|
| 0.8 |
|
| V | |
| Logic High (Module Off) |
| Von/off | 2 |
|
| 18 |
|
| V |
| ON/OFF Control, Positive Remote On/Off logic |
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| Logic Low (Module Off) |
| Von/off |
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| 0.8 |
|
| V | |
| Logic High (Module On) |
| Von/off | 2 |
|
| 18 |
|
| V |
| ON/OFF Current (for both remote on/off logic) |
| Ion/off at Von/off=0.0V |
|
| 0.25 |
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| mA |
| Leakage Current (for both remote on/off logic) |
| Logic High, Von/off=15V |
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|
| 30 |
|
| uA |
| Output Voltage Trim Range |
| Across Trim Pin & +Vo or |
|
| 10% |
| % | ||
| Output |
| Over full temp range; % of nominal Vout | 3.8 |
|
| 4.62 |
|
| V |
| GENERAL SPECIFICATIONS |
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| MTBF |
| Io=80% of Io, max; Ta=25°C; air flow 300LFM |
|
| 1.98 |
|
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| M hours |
| Weight |
|
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| 10.5 |
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| grams |
|
| Refer to Figure 20 for the measuring point |
|
| 117 |
|
|
| °C | |
DS_S48SP3R310_05222008 | 2 |
