Delta Series H48SR - Manuals

Page 2 - TECHNICAL SPECIFICATIONS; PARAMETER; NOTES and CONDITIONS

DS_H48SR1R860_06272006 2 TECHNICAL SPECIFICATIONS (T A =25°C, airflow rate=300 LFM, V in =48Vdc, nominal Vout unless otherwise noted.) PARAMETER NOTES and CONDITIONS H48SR1R860NRFA Min. Typ. Max. Units ABSOLUTE MAXIMUM RATINGS Input Voltage Continuous 80 Vdc Transient (100ms) 100ms 100 Vdc Operating...

Page 3 - ELECTRICAL CHARACTERISTICS CURVES; Figure

DS_H48SR1R860_06272006 3 ELECTRICAL CHARACTERISTICS CURVES 60 65 70 75 80 85 90 95 10 20 30 40 50 60 OUTPUT CURRENT (A) E F F ICIE NCY (%) 36Vin 48Vin 75Vin 0.0 4.0 8.0 12.0 16.0 20.0 24.0 10 20 30 40 50 60 OUTPUT CURRENT(A) PO W E R DI SSI PATI O N ( W ) 36Vin 48Vin 75Vin Figure 1: Efficiency vs. l...

Page 6 - Copper Strip

DS_H48SR1R860_06272006 6 ELECTRICAL CHARACTERISTICS CURVES Figure 13: Input Terminal Ripple Current, i c , at full rated output current and nominal input voltage with 12µH source impedance and 33µF electrolytic capacitor (500 mA/div). Figure 14: Input reflected ripple current, i s , through a 12µH s...

Page 7 - THERMAL CURVES; Power dissipation vs. ambient temperature and air

DS_H48SR1R860_06272006 THERMAL CURVES Figure 18: Hot spot location (unit in mm) Figure 19: Output current vs. ambient temperature and air velocity (Vin=48V / 75V, V out =0.8V ) Figure 20: Output current vs. ambient temperature and air velocity (Vin=48V / 75V, V out =1.8V ) Figure 21: Power dissipati...

Page 8 - Soldering and Cleaning Considerations; DESIGN CONSIDERATIONS; Input Source Impedance

DS_H48SR1R860_06272006 8 Do not ground one of the input pins without grounding one of the output pins. This connection may allow a non-SELV voltage to appear between the output pin and ground. The power module has extra-low voltage (ELV) outputs when all inputs are ELV. This power module is not inte...

Page 9 - Remote on/off implementation; Remote Sense; Vout; Resistance; FEATURES DESCRIPTIONS; Over-Voltage Protection

DS_H48SR1R860_06272006 9 Vo(+) Vi(+) Vo(-) Sense(-) Sense(+) Vi(-) ON/OFF Figure 22: Remote on/off implementation Remote Sense 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 the output ...

Page 10 - Circuit configuration for trim-up (increase output; ref; up; Circuit configuration for trim-down (decrease; down; Output voltage

DS_H48SR1R860_06272006 FEATURES DESCRIPTIONS (CON.) Output Voltage Adjustment (TRIM) 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 SENSE(+) or SENSE(-). The TRIM pin should be left open if this feature...

Page 11 - Wind Tunnel Test Setup; THERMAL CONSIDERATIONS; Thermal Testing Setup; and the measured location is illustrated in Figure

DS_H48SR1R860_06272006 11 Note: Wind Tunnel Test Setup Figure Dimensions are in millimeters and (Inches) 12.7 (0.5”) MODULE AIR FLOW 50.8 (2.0”) FACING PWB PWB AIR VELOCITY AND AMBIENT TEMPERATURE MEASURED BELOW THE MODULE Figure 26: Wind Tunnel Test Setup THERMAL CONSIDERATIONS Thermal management i...

Page 12 - MECHANICAL DRAWING; Function

DS_H48SR1R860_06272006 12 MECHANICAL DRAWING Pin No. Name Function 1 2 3 4 5 6 7 8 -Vin ON/OFF +Vin +Vout +SENSE TRIM -SENSE -Vout Negative input voltage Remote ON/OFF Positive input voltage Positive output voltage Positive remote sense Output voltage trim Negative remote sense Negative output volta...

Page 13 - PART NUMBERING SYSTEM; S R; MODEL LIST; Part Number; Please contact us for modules with fixed output voltages.; WARRANTY

DS_H48SR1R860_06272006 PART NUMBERING SYSTEM H 48 S R 1R8 60 N R F A Form Factor Input Voltage Number of Outputs Product Series Output Voltage Output Current ON/OFF Logic Pin Length Option Code H – Half-Brick 48- 36V~75V S- Single R- Single Board 1R8- 1.8V 60- 60A 80- 80A N-Negative P-Positive R-0.1...