Page 2 - TECHNICAL SPECIFICATIONS; PARAMETER
DS_S48SP3R310_05222008 2 TECHNICAL SPECIFICATIONS (T A =25°C, airflow rate=300 LFM, V in =48Vdc, nominal Vout unless otherwise noted.) PARAMETER NOTES and CONDITIONS S48SP3R310 (Standard) Min. Typ. Max. Units ABSOLUTE MAXIMUM RATINGS Input Voltage Continuous 80 Vdc Transient (100ms) 100ms 100 Vdc Op...
Page 3 - ELECTRICAL CHARACTERISTICS CURVES; maximum input voltage at 25°C
DS_S48SP3R310_05222008 3 ELECTRICAL CHARACTERISTICS CURVES Figure 1: Efficiency vs. load current for minimum, nominal, and maximum input voltage at 25°C Figure 2: Power dissipation vs. load current for minimum, nominal, and maximum input voltage at 25°C. Figure 3: Typical full load input characteris...
Page 4 - For Negative Remote On/Off Logic; For Positive Remote On/Off Logic; Turn-on transient at full rated load current (5
DS_S48SP3R310_05222008 4 ELECTRICAL CHARACTERISTICS CURVES For Negative Remote On/Off Logic Figure 4: Turn-on transient at full rated load current (5 ms/div). Vin=48V. Top Trace: Vout, 1.0V/div; Bottom Trace: ON/OFF input, 2V/div Figure 5: Turn-on transient at zero load current (5 ms/div). Vin=48V. ...
Page 5 - Figure
DS_S48SP3R310_05222008 5 ELECTRICAL CHARACTERISTICS CURVES Figure 8: Output voltage response to step-change in load current (75%-50% of Io, max; di/dt = 0.1A/µs). Load cap: 10µF tantalum capacitor and 1µF ceramic capacitor. Top Trace: Vout (100mV/div, 50us/div), Bottom Trace: Iout (2A/div). Scope me...
Page 7 - Soldering and Cleaning Considerations; DESIGN CONSIDERATIONS; Input Source Impedance
DS_S48SP3R310_05222008 7 The input source must be insulated from the ac mains by reinforced or double insulation. The input terminals of the module are not operator accessible. If the metal baseplate is grounded , one Vi pin and one Vo pin shall also be grounded. A SELV reliability test is c...
Page 8 - FEATURES DESCRIPTIONS; Over-Voltage Protection; Trim
DS_S48SP3R310_05222008 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-down (decrease; ohm
DS_S48SP3R310_05222008 9 FEATURES DESCRIPTIONS (CON.) Output Voltage Adjustment To increase or decrease the output voltage set point, the modules may be connected with an external resistor between the TRIM pin and either the Vo(+) or Vo(-). The TRIM pin should be left open if this feature is not use...
Page 10 - THERMAL CONSIDERATIONS; Thermal Testing Setup; Wind tunnel test setup; Thermal Derating; THERMAL CURVES; Hot spot temperature measured point; Output load vs. ambient temperature and air
DS_S48SP3R310_05222008 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 - PICK AND PLACE LOCATION SURFACE-MOUNT TAPE & REEL
DS_S48SP3R310_05222008 11 PICK AND PLACE LOCATION SURFACE-MOUNT TAPE & REEL RECOMMENDED PAD LAYOUT (SMD)
Page 12 - Temp
DS_S48SP3R310_05222008 12 LEADED (Sn/Pb) PROCESS RECOMMEND TEMP. PROFILE Time ( sec. ) Pre-heat temp. 140~180 ° C 60~120 sec. Peak temp. 210~230 ° C 5sec. Ramp-up temp. 0.5~3.0 ° C /sec. T emperatur e ( ° C ) 50 100 150 200 250 300 60 0 120 180 240 2nd Ramp-up temp. 1.0~3.0 ° C /sec. Over 200 ° C 40...
Page 13 - Surface-mount module Through-Hole module; Pin No. Name Function
DS_S48SP3R310_05222008 13 MECHANICAL DRAWING Surface-mount module Through-Hole module Pin No. Name Function 1 2 3 4 5 6 +Vin -Vin ON/OFF (Optional) -Vout TRIM (Optional) +Vout Positive input voltage Negative input voltage Remote ON/OFF (Optional) Negative output voltage Output voltage trim (Optional...
Page 14 - PART NUMBERING SYSTEM; MODEL LIST; MODEL NAME; WARRANTY
DS_S48SP3R310_05222008 14 PART NUMBERING SYSTEM S 48 S P 3R3 10 N R F B Product Type Input Voltage Number of Outputs Product Series Output Voltage Output Current ON/OFF Logic Pin Length/Type Option Code S - Small Power 48- 36V~75V S - Single 1x1, 10A 3R3 - 3.3V 10 - 10A N - Negative (Default) P - Po...