DS_Q48SP12017_05302008

2
TECHNICAL SPECIFICATIONS
(TA=25°C, airflow rate=300 LFM, Vin=48Vdc, nominal Vout unless otherwise noted; mounted on board.)
PARAMETER NOTES and CONDITIONS Q48SP12017NRFA
Min. Typ. Max. Units
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Continuous -0.5 80 Vdc
Transient (100ms, non-operating) 100ms 100 Vdc
Operating Temperature Refer to Figure 22 for the measuring point -40 120 °C
Storage Temperature -40 105 °C
Input/Output Isolation Voltage 2250 Vdc
INPUT CHARACTERISTICS
Operating Input Voltage 36 48 75 Vdc
Input Under-Voltage Lockout
Turn-On Voltage Threshold 33 34 36 Vdc
Turn-Off Voltage Threshold 30 32 34 Vdc
Lockout Hysteresis Voltage 1 2 3 Vdc
Maximum Input Current 100% Load, 36Vin 7 A
No-Load Input Current 140 mA
Off Converter Input Current 11 mA
Inrush Current (I2t) 1 A2S
Input Reflected-Ripple Current P-P thru 12µH inductor, 5Hz to 20MHz 10 mA
Input Voltage Ripple Rejection 120 Hz 50 dB
OUTPUT CHARACTERISTICS
Output Voltage Set Point Vin=48V, Io=Io.max, Ta=25C 11.8 12 12.2 Vdc
Output Voltage Regulation
Over Load Io=Io,min to Io,max 6 24 mV
Over Line Vin=36V to 75V 6 24 mV
Over Temperature Ta=-40C to135C 32 60 mV
Total Output Voltage Range over sample load, line and temperature 11.6 12.4 V
Output Voltage Ripple and Noise 5Hz to 20MHz bandwidth
Peak-to-Peak Full Load, 1µF ceramic, 10µF tantalum 150 mV
RMS Full Load, 1µF ceramic, 10µF tantalum 50 mV
Operating Output Current Range 0 18 A
Output DC Current-Limit Inception Output Voltage 10% Low 19 21 24 A
DYNAMIC CHARACTERISTICS
Output Voltage Current Transient 48V, 10µF Tan & 1µF Ceramic load cap, 0.1A/µs
Positive Step Change in Output Current 50% Io,max to 75% Io,max 300 mV
Negative Step Change in Output Current 75% Io,max to 50% Io,max 300 mV
Settling Time (within 1% Vout nominal) 400 uS
Turn-On Transient
Start-Up Time, From On/Off Control 8 mS
Start-Up Time, From Input 6 mS
Maximum Output Capacitance Full load; 5% overshoot of Vout at startup 0 `1500 µF
EFFICIENCY
100% Load 92.5 %
ISOLATION CHARACTERI STICS
Input to Output 2250 Vdc
Isolation Resistance 10 MΩ
Isolation Capacitance 1000 pF
FEATURE CHARACTERISTICS
Switching Frequency 300 kHz
ON/OFF Control, (Logic Low-Module ON)
Logic Low Von/off at Ion/off=1.0mA 0 1 V
Logic High Von/off at Ion/off=0.0 µA 2 15 V
ON/OFF Current Ion/off at Von/off=0.0V 1 mA
Leakage Current Logic High, Von/off=15V 50 uA
Output Voltage Trim Range (not available on Exxx code) Across Pins 9 & 5, Pout <= max rated power -20 +10 %
Output Voltage Remote Sense Range (not available on Exxx) Pout <= max rated power 0.5 V
Output Over-Voltage Protection Over full temp range; % of nominal Vout 13.5 16.5 V
GENERAL SPECIFICATIONS
MTBF Io=80% of Io, max; Ta=25°C 2.40 M hours
Weight 45 grams
Over-Temperature Shutdown Refer to Figure 22 for the measuring point 130 °C