Delta Q48SP - Manuals - manualsarea.com

Page 2 - TECHNICAL SPECIFICATIONS; PARAMETER; NOTES and CONDITIONS

DS_Q48SP12017_05302008 2 TECHNICAL SPECIFICATIONS (T A =25°C, airflow rate=300 LFM, V in =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, ...

Page 3 - ELECTRICAL CHARACTERISTICS CURVES; maximum input voltage at 25°C.

DS_Q48SP12017_05302008 3 ELECTRICAL CHARACTERISTICS CURVES 70 72 74 76 78 80 82 84 86 88 90 92 94 2 4 6 8 10 12 14 16 18 OUTPUT CURRENT(A) E F F ICI E N CY (% ) 36V 48V 75V 0 2 4 6 8 10 12 14 16 18 20 2 4 6 8 10 12 14 16 18 OUTPUT CURRENT(A) LO S S( W ) 36V 48V 75V Figure 1: Efficiency vs. load curr...

Page 4 - Output voltage response to step-change in load; Typical input characteristics at room temperature

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 =0.1A/µs). Load cap:1µF ceramic capacitor and 10uF Tantalum capacitor. Top Trace: Vout (200mV/div), Bottom Trace: Iout (5A/div). Scope measurement sh...

Page 5 - Figure

DS_Q48SP12017_05302008 5 ELECTRICAL CHARACTERISTICS CURVES Figure 9: Test set-up diagram showing measurement points for Input Terminal Ripple Current and Input Reflected Ripple Current. Note: Measured input reflected-ripple current with a simulated source Inductance (L TEST ) of 12 μ H. Capacitor Cs...

Page 6 - Copper Strip

DS_Q48SP12017_05302008 6 ELECTRICAL CHARACTERISTICS CURVES Vo(-) Vo(+) 10u 1u Copper Strip SCOPE RESISTIVE LOAD Figure 11: Output voltage noise and ripple measurement test setup Figure 12: Output voltage ripple at 36V input voltage and rated load current (50 mV/div). Load capacitance: 1µF ceramic ca...

Page 7 - DESIGN CONSIDERATIONS; Input Source Impedance

DS_Q48SP12017_05302008 7 DESIGN CONSIDERATIONS Input Source Impedance The impedance of the input source connecting to the DC/DC power modules will interact with the modules and affect the stability. A low ac-impedance input source is recommended. If the source inductance is more than a few μ H, we a...

Page 8 - FEATURES DESCRIPTIONS; Over-Voltage Protection; Remote on/off implementation; Resistance; Effective circuit configuration for remote sense

DS_Q48SP12017_05302008 8 FEATURES DESCRIPTIONS Over-Current Protection The modules include an internal output over-current protection circuit, which will endure current limiting for an unlimited duration during output overload. If the output current exceeds the OCP set point, the modules will automa...

Page 9 - Circuit configuration for trim-up (increase output; Vo; Trim UP resistor selection

DS_Q48SP12017_05302008 9 FEATURES DESCRIPTIONS (CON.) Output Voltage Adjustment (TRIM) (Not applicable to Q48SP120017Exxx) To increase or decrease the output voltage set point, connect an external resistor between the TRIM pin and either the SENSE(+) or SENSE(-). The TRIM pin should be left open if ...

Page 10 - THERMAL CONSIDERATIONS; Thermal Testing Setup; Wind tunnel test setup; THERMAL CURVES; Temperature measurement location; Output current vs. ambient temperature and air

DS_Q48SP12017_05302008 10 THERMAL CONSIDERATIONS Thermal management is an important part of the system design. To ensure proper, reliable operation, sufficient cooling of the power module is needed over the entire temperature range of the module. Convection cooling is usually the dominant mode of he...

Page 11 - Function

DS_Q48SP12017_05302008 11 MECHANICAL DRAWING (WITHOUT HEATSPERADER) Pin No. Name Function 1 2 3 4 5 6 7 8 9 -Vin CASE ON/OFF +Vin +Vout +SENSE TRIM -SENSE -Vout Negative input voltage Case ground pin Remote ON/OFF Positive input voltage Positive output voltage Positive remote sense Output voltage tr...

Page 14 - PART NUMBERING SYSTEM; MODEL LIST; MODEL NAME

DS_Q48SP12017_05302008 14 PART NUMBERING SYSTEM Q 48 S P 120 17 N R F A Form Factor Input Voltage Number of Outputs Product Series Output Voltage Output Current ON/OFF Logic Pin Length Option Code Q - Quarter Brick 48 - 36~75V S - Single P - 200W series 120 - 12V 18A N - Negative P - Positive E - Ne...