Delta 33W Family - Manuals - manualsarea.com

Page 2 - TECHNICAL SPECIFICATIONS; PARAMETER; NOTES and CONDITIONS

DS_S48SA1R812_06012006 TECHNICAL SPECIFICATIONS (T A =25°C, airflow rate=300 LFM, V in =48Vdc, nominal Vout unless otherwise noted.) PARAMETER NOTES and CONDITIONS S48SA1R812NRFA Min. Typ. Max. Units ABSOLUTE MAXIMUM RATINGS Input Voltage Continuous 80 Vdc Transient (100ms) 100ms 100 Vdc Operating T...

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

DS_S48SA1R812_06012006 ELECTRICAL CHARACTERISTICS CURVES 55 60 65 70 75 80 85 90 95 1 2 3 4 5 6 7 8 9 10 11 12 OU TPU T C U R R EN T (A) E FFICIE NCY ( % ) 3 6 Vi n 4 8 Vi n7 5 Vi n 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 1 2 3 4 5 6 7 8 9 10 11 12 OUTPUT CURRENT (A) P O WE R DIS S IP A T IO N ( W ) 36V...

Page 4 - Figure5

DS_S48SA1R812_06012006 4 ELECTRICAL CHARACTERISTICS CURVES Figure5 : Turn-on transient at zero load current (1 ms/div). Top Trace: Vout (500mV/div); Bottom Trace: ON/OFF Control (5V/div). Figure 6: Output voltage response to step-change in load current (50%-75% of Io, max; di/dt = 0.1A/µs). Load cap...

Page 5 - Figure 9

DS_S48SA1R812_06012006 ELECTRICAL CHARACTERISTICS CURVES Strip Copper Vo(-) Vo(+) 10u 1u SCOPE RESISTIVE LOAD Figure 9 : Input Reflected Ripple Current, is, at full rated output current and nominal input voltage with 12 µ H source impedance and 33 µ F electrolytic capacitor (2 mA/div). Figure 10: Ou...

Page 6 - DESIGN CONSIDERATION; Layout and EMC Considerations; The input source must be insulated from any

DS_S48SA1R812_06012006 This power module is not internally fused. To achieve optimum safety and system protection, an input line fuse is highly recommended. The safety agencies require a normal-blow fuse with 3A maximum rating to be installed in the ungrounded lead. A lower rated fuse can be used ba...

Page 7 - Resistance; ffective circuit configuration for remote sense; FEATURES DESCRIPTIONS; Over-Voltage Protection

DS_S48SA1R812_06012006 Vo(+) Vi(+) Vo(-) Sense(-) Sense(+) Vi(-) ON/OFF Figure 13: Remote on/off implementation Remote Sense (Optional) Remote sense compensates for voltage drops on the output by sensing the actual output voltage at the point of load. The voltage between the remote sense pins and th...

Page 8 - are should be taken to ensure that the maximum; Circuit configuration for trim-down (decrease output; the external resistor is connected between the TRIM; Circuit configuration for trim-up (increase output; the external resistor is connected between the TRIM

DS_S48SA1R812_06012006 [ ] ΚΩ − ∆ = − 104 % Vo up − ∆ + 1089 %) 100 ( 8 . 23 Vo Ex. When trim-up +10% (1.8V X 1.1 = 1.98V) Rtrim [ ] ΚΩ = − = − 9 . 48 104 10 up − + 1089 ) 10 100 ( 8 . 23 are should be taken to ensure that the maximum utput Voltage Adjustment (TRIM) o increase or decrease the output...

Page 9 - THERMAL CONSIDERATIONS; Thermal Testing Setup; Wind tunnel test setup; THERMAL CURVES; Output current vs. ambient temperature and air velocity; Hot spot temperature measured point

DS_S48SA1R812_06012006 9 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 hea...

Page 10 - PICK AND PLACE LOCATION SURFACE-MOUNT TAPE & REEL

DS_S48SA1R812_06012006 10 PICK AND PLACE LOCATION SURFACE-MOUNT TAPE & REEL RECOMMENDED PAD LAYOUT (SMD)

Page 12 - MECHANICAL DRAWING; SMD; Name

DS_S48SA1R812_06012006 MECHANICAL DRAWING SMD Through-Hole Pin No. Name Function 1 +Vout Positive output voltage 2 -Vout Negative output voltage 6 Trim Output voltage trim 8 ON/OFF ON/OFF logic 11 -Vin Negative input voltage 12 +Vin Positive input voltage Optional Pin Name Function 4 +Sense (Option)...

Page 13 - PART NUMBERING SYSTEM; MODEL LIST; MODEL NAME

DS_S48SA1R812_06012006 14 PART NUMBERING SYSTEM S 48 S A 1R8 12 N R F A* Form Factor Input Voltage Number of Outputs Product Series Output Voltage Output Current ON/OFF Logic Pin Type Option Code S- Small Power 48V S- Single A- Advanced 1R2-1.2V 1R5-1.5V 1R8-1.8V 2R5-2.5V 3R3- 3.3V 050- 5.0V 120- 12...