Delta-electronics Q48SP Manuel d'utilisateur

1 FEATURES  High efficiency: 92.5 % @12V/18A  Size: 57.9x36.8x10.8mm (2.28”x1.45”x0.43”) (w/o heatspreader) 57.9x36.8x12.7mm (2.28”x1.45”x0.50”)

DS_Q48SP12017_05302008 10THERMAL CONSIDERATIONS Thermal management is an important part of the system design. To ensure proper, reliable operation, s

DS_Q48SP12017_05302008 11MECHANICAL DRAWING (WITHOUT HEATSPERADER) Pin No. Name Function 1 2 3 4 5 6 7 8 9 -Vin CASE ON/OFF +Vin +Vout +SENSE TR

DS_Q48SP12017_05302008 12Mechanical Drawing (FOR Q48SP12017Exxx)

DS_Q48SP12017_05302008 13MECHANICAL DRAWING (WITH HEATSPREADER)

DS_Q48SP12017_05302008 14PART NUMBERING SYSTEM Q 48 S P 120 17 N R F A Form Factor Input Voltage Number of Outputs Product Series Output VoltageO

DS_Q48SP12017_05302008 2 TECHNICAL SPECIFICATIONS (TA=25°C, airflow rate=300 LFM, Vin=48Vdc, nominal Vout unless otherwise noted; mounted on board.)

DS_Q48SP12017_05302008 3ELECTRICAL CHARACTERISTICS CURVES 7072747678808284868890929424681012141618OUTPUT CURRENT(A)EFFICIENCY(%)36V 48V 75V 0246810121

DS_Q48SP12017_05302008 4 ELECTRICAL CHARACTERISTICS CURVES Figure 5: Output voltage response to step-change in load current (50%-75% of Io, max: di/dt

DS_Q48SP12017_05302008 5ELECTRICAL CHARACTERISTICS CURVES Figure 9: Test set-up diagram showing measurement points for Input Terminal Ripple Current

DS_Q48SP12017_05302008 6ELECTRICAL CHARACTERISTICS CURVES Vo(-)Vo(+)10u 1uCopper StripSCOPE RESISTIVELOAD Figure 11: Output voltage noise and ripple m

DS_Q48SP12017_05302008 7DESIGN CONSIDERATIONS Input Source Impedance The impedance of the input source connecting to the DC/DC power modules will in

DS_Q48SP12017_05302008 8FEATURES DESCRIPTIONS Over-Current Protection The modules include an internal output over-current protection circuit, which

DS_Q48SP12017_05302008 9FEATURES DESCRIPTIONS (CON.) Output Voltage Adjustment (TRIM) (Not applicable to Q48SP120017Exxx) To increase or decrease th