Delta Series 240W - Manuals

Page 2 - TECHNICAL SPECIFICATIONS; PARAMETER

DS_E48SB12020_05222008 2 TECHNICAL SPECIFICATIONS (T A =25°C, airflow rate=300 LFM, V in =48Vdc, nominal Vout unless otherwise noted.) PARAMETER NOTES and CONDITIONS E48SB12020 (Standard) Min. Typ. Max. Units ABSOLUTE MAXIMUM RATINGS Input Voltage Continuous 60 Vdc Operating Temperature Refer to Fig...

Page 3 - ELECTRICAL CHARACTERISTICS CURVES; Figure

DS_E48SB12020_05222008 3 ELECTRICAL CHARACTERISTICS CURVES 90 91 92 93 94 95 96 97 3 6 9 12 15 18 21 24 Output Current (A) E ff ici en cy ( % ) 38Vin48Vin55Vin 0 2 4 6 8 10 0 3 6 9 12 15 18 21 24 Output Current (A) Lo ss ( W ) 3 8 V i n4 8 V i n5 5 V i n Figure 1: Efficiency vs. load current for min...

Page 4 - For Negative Remote On/Off Logic; For Positive Remote On/Off Logic; Turn-on transient at full rated load current

DS_E48SB12020_05222008 4 ELECTRICAL CHARACTERISTICS CURVES For Negative Remote On/Off Logic Figure 5: Turn-on transient at full rated load current (5 ms/div). Top Trace: Vout; 5V/div; Bottom Trace: ON/OFF input: 2V/div Figure 6: Turn-on transient at zero load current (5 ms/div). Top Trace: Vout: 5V/...

Page 6 - Copper Strip

DS_E48SB12020_05222008 6 ELECTRICAL CHARACTERISTICS CURVES Figure 12: Input Terminal Ripple Current, i c , at full rated output current and nominal input voltage with 12µH source impedance and 47µF electrolytic capacitor (100 mA/div, 2us/div). Figure 13: Input reflected ripple current, i s , through...

Page 7 - DESIGN CONSIDERATIONS; F electrolytic; Layout and EMC Considerations; Schematic and Components List; Test Result; Soldering and Cleaning Considerations; FEATURES DESCRIPTIONS

DS_E48SB12020_05222008 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 - Over-Temperature Protection; Load; Current Sharing

DS_E48SB12020_05222008 8 Over-Temperature Protection The over-temperature protection consists of circuitry that provides protection from thermal damage. If the temperature exceeds the over-temperature threshold, the module will be shut down, and enter in the auto-restart mode or latch mode, which is...

Page 9 - THERMAL CONSIDERATIONS; Thermal Testing Setup; Wind tunnel test setup; Thermal Derating; THERMAL CURVES; Temperature measurement location; Output current vs. ambient temperature and air

DS_E48SB12020_05222008 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 - MECHANICAL DRAWING; Function; All pins are copper with Tin plating (Pb free)

DS_E48SB12020_05222008 10 MECHANICAL DRAWING Pin No. Name Function 1 2 3 4 5 +Vin ON/OFF -Vin -Vout +Vout Positive input voltage Remote ON/OFF Negative input voltage Negative output voltage Positive output voltage Pin Specification: Pins 1-3 1.0mm (0.040”) diameter Pins 4-5 1.5mm (0.060”) diameter A...

Page 11 - PART NUMBERING SYSTEM; MODEL LIST; MODEL NAME; CONTACT

DS_E48SB12020_05222008 11 PART NUMBERING SYSTEM E 48 S B 120 20 N R F A Type of Product Input Voltage Number of Outputs Product Series Output Voltage Output Current ON/OFF Logic Pin Length Option Code E- Eighth Brick 48- 38V~55V S- Single B- Bus Converter 120- 12V 20- 20A N- Negative (Default) P- Po...