Delta H48SL - Manuals - manualsarea.com

Page 2 - TECHNICAL SPECIFICATIONS; PARAMETER

TECHNICAL SPECIFICATIONS (T A =25°C, airflow rate=300 LFM, V in =48Vdc, nominal Vout unless otherwise noted) PARAMETER NOTES and CONDITIONS H48SL1R560 (Standard) Min. Typ. Max. Units ABSOLUTE MAXIMUM RATINGS Input Voltage Continuous 80 Vdc Transient (100ms) 100ms 100 Vdc Operating Case Temperature T...

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

ELECTRICAL CHARACTERISTICS CURVES 65 70 75 80 85 90 10 20 30 40 50 60 OUTPUT CURRENT (A) E FFICIE NCY (%) 36Vin 48Vin 75Vin 0.0 4.0 8.0 12.0 16.0 20.0 10 20 30 40 50 60 OUTPUT CURRENT(A) POW E R D ISSIPATION ( W ) 36Vin 48Vin 75Vin Figure 1: Efficiency vs. load current for minimum, nominal, and maxi...

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

ELECTRICAL CHARACTERISTICS CURVES For Negative Remote On/Off Logic Figure 4: Turn-on transient at full rated load current (resistive load) (2 ms/div). Top Trace: Vout; 500mV/div; Bottom Trace: ON/OFF input: 10V/div Figure 5: Turn-on transient at zero load current (2 ms/div). Top Trace: Vout: 500mV/d...

Page 5 - Figure

ELECTRICAL CHARACTERISTICS CURVES Figure 8: Output voltage response to step-change in load current (75%-50%-75% of Io, max; di/dt = 0.1A/µs). Load cap: 10µF, tantalum capacitor and 1µF ceramic capacitor. Top Trace: Vout (100mV/div), Bottom Trace: Iout (10A/div). Scope measurement should be made usin...

Page 6 - Copper Strip

ELECTRICAL CHARACTERISTICS CURVES Figure 11: Input Terminal Ripple Current, i c , at full rated output current and nominal input voltage with 12µH source impedance and 33µF electrolytic capacitor (1A/div). Figure 12: Input reflected ripple current, i s , through a 12µH source inductor at nominal inp...

Page 7 - Output voltage ripple at nominal input voltage and

ELECTRICAL CHARACTERISTICS CURVES 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 0 10 20 30 40 50 60 70 80 90 100 LOAD CURRENT (A) OU TPU T VOLTAGE ( V ) 48Vin Figure 14: Output voltage ripple at nominal input voltage and rated load current (20 mV/div). Load capacitance: 1µF ceramic capacitor and 10µF tantalum...

Page 8 - THERMAL CURVES: NO HEATSINK, EITHER ORIENTATION

THERMAL CURVES: NO HEATSINK, EITHER ORIENTATION Figure 16: Case temperature measurement location. Pin locations are for reference only. Figure 17: Output current vs. ambient temperature and air velocity (V in <60V) Figure 18: Output current vs. ambient temperature and air velocity (V in =75V) Fig...

Page 9 - DESIGN CONSIDERATIONS; Input Source Impedance

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 advise adding a 10 to 100 ...

Page 10 - FEATURES DESCRIPTIONS; Over-Voltage Protection; Remote on/off implementation; Remote Sense; Vout; Effective circuit configuration for remote sense

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 automatically shut down (hiccup...

Page 11 - Circuit configuration for trim-down (decrease; ΚΩ

FEATURES DESCRIPTIONS (CON.) Output Voltage Adjustment (TRIM) 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 this feature is not used. Figure 22: Circuit configuration fo...

Page 12 - THERMAL CONSIDERATIONS; Thermal Testing Setup; Wind tunnel test setup

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 heat transfer. Hence, the ch...

Page 13 - All pins are copper with Tin plating.

MECHANICAL DRAWING 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 Remote ON/OFF Positive input voltage Positive output voltage Positive remote sense Output voltage trim Negative remote sense Negative output voltage Pin ...

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

DS_H48SL1R560_10302006 14 PART NUMBERING SYSTEM H 48 S L 1R5 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 48V S - Single L - IMS, positive trim 1R5 - 1.5V 60 - 60A N - Negative P - Positive R - ...