Thermal Considerations, Thermal Derating | Delta Electronics H48SL

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Delta Electronics H48SL manual Thermal Considerations, Thermal Testing Setup, Thermal Derating

Contents

FEATURES OPTIONSAPPLICATIONS DATASHEET DSH48SL1R56010302006 TECHNICAL SPECIFICATIONS INPUT CHARACTERISTICSOUTPUT CHARACTERISTICS DYNAMIC CHARACTERISTICS ELECTRICAL CHARACTERISTICS CURVES For Negative Remote On/Off Logic For Positive Remote On/Off LogicFigure 5 Turn-on transient at zero load current 2 ms/div. Top Figure 7 Turn-on transient at zero load current 2 ms/div. Top 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 using a BNC cable length shorter than 20 inches. Position the load between 51 mm to 76 mm 2 inches to 3 inches from the module Figure 13 Output voltage noise and ripple measurement test setup Figure 14 Output voltage ripple at nominal input voltage and THERMAL CURVES NO HEATSINK, EITHER ORIENTATION Safety Considerations Soldering and Cleaning ConsiderationsDESIGN CONSIDERATIONS Input Source Impedance FEATURES DESCRIPTIONS Over-Current ProtectionOver-Voltage Protection Over-Temperature Protection FEATURES DESCRIPTIONS CON Output Voltage Adjustment TRIM⎝ ∆% Thermal Testing Setup THERMAL CONSIDERATIONSThermal Derating Pin Specification MECHANICAL DRAWINGName Function WARRANTY PART NUMBERING SYSTEMMODEL LIST MODEL NAME