TECHNICAL SPECIFICATIONS
(TA=25°C, airflow rate=300 LFM, Vin=48Vdc, nominal Vout unless otherwise noted; mounted on board.)
| PARAMETER | NOTES and CONDITIONS |
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| Q48SP12017NRFA |
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| Min. |
| Typ. | Max. | Units |
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| ABSOLUTE MAXIMUM RATINGS |
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| Input Voltage |
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| Continuous |
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| 80 | Vdc |
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| Transient (100ms, | 100ms |
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| 100 | Vdc |
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| Operating Temperature | Refer to Figure 22 for the measuring point |
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| 120 | °C |
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| Storage Temperature |
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| 105 | °C |
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| Input/Output Isolation Voltage |
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| 2250 | Vdc |
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| INPUT CHARACTERISTICS |
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| Operating Input Voltage |
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| 36 |
| 48 | 75 | Vdc |
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| Input |
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| 33 |
| 34 | 36 | Vdc |
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| 30 |
| 32 | 34 | Vdc |
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| Lockout Hysteresis Voltage |
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| 1 |
| 2 | 3 | Vdc |
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| Maximum Input Current | 100% Load, 36Vin |
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| 7 | A |
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| 140 | mA |
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| Off Converter Input Current |
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| 11 | mA |
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| Inrush Current (I2t) |
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| 1 | A2S |
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| Input |
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| 10 |
| mA |
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| Input Voltage Ripple Rejection | 120 Hz |
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| 50 |
| dB |
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| OUTPUT CHARACTERISTICS |
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| Output Voltage Set Point | Vin=48V, Io=Io.max, Ta=25C |
| 11.8 |
| 12 | 12.2 | Vdc |
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| Output Voltage Regulation |
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| Over Load | Io=Io,min to Io,max |
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| 6 | 24 | mV |
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| Over Line | Vin=36V to 75V |
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| 6 | 24 | mV |
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| Over Temperature |
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| 32 | 60 | mV |
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| Total Output Voltage Range | over sample load, line and temperature | 11.6 |
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| 12.4 | V |
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| Output Voltage Ripple and Noise | 5Hz to 20MHz bandwidth |
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| Full Load, 1µF ceramic, 10µF tantalum |
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| 150 | mV |
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| RMS | Full Load, 1µF ceramic, 10µF tantalum |
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| 50 | mV |
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| Operating Output Current Range |
| 0 |
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| 18 | A |
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| Output DC | Output Voltage 10% Low |
| 19 |
| 21 | 24 | A |
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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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| 300 |
| mV |
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| Negative Step Change in Output Current | 75% Io,max to 50% Io,max |
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| 300 |
| mV |
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| Settling Time (within 1% Vout nominal) |
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| 400 |
| uS |
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| 8 |
| mS |
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| 6 |
| mS |
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| Maximum Output Capacitance | Full load; 5% overshoot of Vout at startup | 0 |
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| `1500 | µF |
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| EFFICIENCY |
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| 100% Load |
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| 92.5 |
| % |
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| ISOLATION CHARACTERISTICS |
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| Input to Output |
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| 2250 | Vdc |
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| Isolation Resistance |
| 10 |
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| MΩ |
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| Isolation Capacitance |
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| 1000 |
| pF |
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| FEATURE CHARACTERISTICS |
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| Switching Frequency |
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| 300 |
| kHz |
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| ON/OFF Control, (Logic |
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| Logic Low | Von/off at Ion/off=1.0mA |
| 0 |
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| 1 | V |
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| Logic High | Von/off at Ion/off=0.0 µA | 2 |
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| 15 | V |
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| ON/OFF Current | Ion/off at Von/off=0.0V |
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| 1 | mA |
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| Leakage Current | Logic High, Von/off=15V |
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| 50 | uA |
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| Output Voltage Trim Range (not available on Exxx code) | Across Pins 9 & 5, Pout <= max rated power |
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| +10 | % |
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| Output Voltage Remote Sense Range (not available on Exxx) | Pout <= max rated power |
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| 0.5 | V |
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| Output | Over full temp range; % of nominal Vout |
| 13.5 |
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| 16.5 | V |
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| GENERAL SPECIFICATIONS |
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| MTBF | Io=80% of Io, max; Ta=25°C |
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| 2.40 |
| M hours |
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| Weight |
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| 45 |
| grams |
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| Refer to Figure 22 for the measuring point |
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| 130 |
| °C |
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2
DS_Q48SP12017_05302008
