Delta-electronics Series E48SH User Manual

FEATURES  High efficiency: 92.0% @3.3V/30A  Size: 58.4mm x 22.8mm x9.5mm (2.30”x0.90”x0.37”)  Industry standard pin out  Fixed frequenc

E48SH3R330_02162007 10 THERMAL CONSIDERATIONS Thermal management is an important part of the system design. To ensure proper, reliable operation,

PICK AND PLACE LOCATION SURFACE-MOUNT TAPE & REEL RECOMMENDED PAD LAYOUT (SMD) E48SH3R330_02162007 11

LEADED (Sn/Pb) PROCESS RECOMMEND TEMP. PROFILE Time ( sec. ) Pre-heat temp. 140~180°C 60~120 sec. Peak temp. 210~230°C 5sec. Ramp-up temp. 0.5~3.0°C /

MECHANICAL DRAWING SURFACE-MOUNT MODULE THROUGH-HOLE MODULE Pin No. Name Function1 2 3 4 5 6 7 8 +Vin ON/OFF -Vin

MECHANICAL DRAWING (WITH HEATSPREADER) THROUGH-HOLE MODULE E48SH3R330_02162007 14

E48SH3R330_02162007 15 PART NUMBERING SYSTEM E 48 S H 3R3 30 N R F A Type of Product Input Voltage Number of Outputs Product Series Output Volt

TECHNICAL SPECIFICATIONS (TA=25°C, airflow rate=300 LFM, Vin=48Vdc, nominal Vout unless otherwise noted.) PARAMETER NOTES and CONDITIONS E48SH3R330

E48SH3R330_02162007 3 ELECTRICAL CHARACTERISTICS CURVES Figure 1: Efficiency vs. load current for minimum, nominal, and maximum input voltage

ELECTRICAL CHARACTERISTICS CURVES E48SH3R330_02162007 4 For Negative Remote On/Off Logic Figure 4: Turn-on transient at zero load current (

ELECTRICAL CHARACTERISTICS CURVES E48SH3R330_02162007 5 Figure 8: Output voltage response to step-change in load current (75%-50% of Io, max;

ELECTRICAL CHARACTERISTICS CURVES Figure 12: Input reflected ripple current, is, through a 12µH source inductor at nominal input voltage and rated

DESIGN CONSIDERATIONS Input Source Impedance The impedance of the input source connecting to the DC/DC power modules will interact with the modules

FEATURES DESCRIPTIONS Over-Current Protection The E48SH modules include an internal output over-current protection circuit, which will endure curren

FEATURES DESCRIPTIONS (CON.) Output Voltage Adjustment (TRIM) To increase or decrease the output voltage set point, the modules may be connected wit