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Delphi Series E48SH, 120W Eighth Brick Family
DC/DC Power Modules: 48V in, 3.3V/30A out
The Delphi Series E48SH Eighth Brick, 48V input, single output, isolated
DC/DC converters are the latest offering from a world leader in power
systems technology and manufacturing ― Delta Electronics, Inc. This
product family is available in either a through-hole or surface-mounted
package and provides up to 120 watts of power or 50A of output current
(1.2V and below) in an industry standard footprint and pinout. The E48SH
converter operates from an input voltage of 36V to 75V and is available in
output voltages from 1.0V to 15V. Efficiency is up to 92.0% for 3.3V
output at 30A full load. With creative design technology and optimization
of component placement, these converters possess outstanding
electrical and thermal performance, as well as extremely high reliability
under highly stressful operating conditions. All models are fully protected
from abnormal input/output voltage, current, and temperature conditions.
The Delphi Series converters meet all safety requirements with basic
insulation.
DATASHEET
DS_E48SH3R330_02162007
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 frequency operation
Input UVLO, Output OTP, OCP, OVP
Monotonic startup into normal and
pre-biased loads
Secondary control, very fast transient
response
2250V Isolation and basic insulation
No minimum load required
No negative current during power or enable
on/off
ISO 9001, TL 9000, ISO 14001, QS 9000,
OHSAS 18001 certified manufacturing facility
UL/cUL 60950 (US & Canada) recognized,
and TUV (EN60950) certified
CE mark meets 73/23/EEC and 93/68/EEC
directive
OPTIONS
Positive On/Off logic
Short pin lengths available
External Synchronization
Output OVP latch mode
Output OCP latch mode
Heat spreader
APPLICATIONS
Telecom/DataCom
Wireless Networks
Optical Network Equipment
Server and Data Storage
Industrial/Test Equipment
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Related Manuals for Delta Electronics Series E48SH
Summary of Contents for Delta Electronics Series E48SH
- Page 1 Delphi Series E48SH, 120W Eighth Brick Family DC/DC Power Modules: 48V in, 3.3V/30A out The Delphi Series E48SH Eighth Brick, 48V input, single output, isolated DC/DC converters are the latest offering from a world leader in power systems technology and manufacturing ― Delta Electronics, Inc. This...
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Page 2: Technical Specifications
TECHNICAL SPECIFICATIONS =25°C, airflow rate=300 LFM, V =48Vdc, nominal Vout unless otherwise noted.) PARAMETER ABSOLUTE MAXIMUM RATINGS Input Voltage Continuous Transient (100ms) Operating Temperature Storage Temperature Input/Output Isolation Voltage INPUT CHARACTERISTICS Operating Input Voltage Input Under-Voltage Lockout Turn-On Voltage Threshold Turn-Off Voltage Threshold Lockout Hysteresis Voltage Maximum Input Current... - Page 3 ELECTRICAL CHARACTERISTICS CURVES Figure 1: Efficiency vs. load current for minimum, nominal, and maximum input voltage at 25°C INPUT VOLT AGE (V) Figure 3: Typical full load input characteristics at room temperature E48SH3R330_02162007 Figure 2: Power dissipation vs. load current for minimum, nominal, and maximum input voltage at 25°C.
- Page 4 ELECTRICAL CHARACTERISTICS CURVES For Negative Remote On/Off Logic Figure 4: Turn-on transient at zero load current (5 ms/div). Vin=48V.Top Trace: Vout, 2V/div; Bottom Trace: ON/OFF input, 2V/div For Input Voltage Start up Figure 6: Turn-on transient at zero load current (5 ms/div). Vin=48V.Top Trace: Vout, 2V/div, Bottom Trace: input voltage, 50V/div E48SH3R330_02162007...
- Page 5 ELECTRICAL CHARACTERISTICS CURVES Figure 8: Output voltage response to step-change in load current (75%-50% of Io, max; di/dt = 0.1A/µs). Load cap: 10µF, tantalum capacitor and 1µF ceramic capacitor. Trace: Vout (50mV/div, 100us/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..
- Page 6 ELECTRICAL CHARACTERISTICS CURVES Figure 12: Input reflected ripple current, i source inductor at nominal input voltage and rated load current (20 mA/div, 2us/div). Figure 14: Output voltage ripple at nominal input voltage and rated load current (Io=30A)(50 mV/div, 2us/div) Load capacitance: 1µF ceramic capacitor and 10µF tantalum capacitor.
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Page 7: Design Considerations
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 µH, we advise adding a 10µF to 100µF electrolytic capacitor (ESR <... -
Page 8: Features Descriptions
FEATURES DESCRIPTIONS Over-Current Protection The E48SH modules include an internal output over-current protection circuit, which will endure current limiting for an unlimited duration during output overload. When the output current exceeds the OCP set point, the current limit function will work by initially reduce duty cycle of the module, the unit will go out of regulation but remains in safe operating area before the output drops below 50%. - Page 9 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 is not used.
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Page 10: Thermal Considerations
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 choice of equipment to characterize the thermal performance of the power module is a wind tunnel. - Page 11 PICK AND PLACE LOCATION SURFACE-MOUNT TAPE & REEL RECOMMENDED PAD LAYOUT (SMD) E48SH3R330_02162007...
- Page 12 LEADED (Sn/Pb) PROCESS RECOMMEND TEMP. PROFILE Pre-heat temp. 140~180°C 60~120 sec. Ramp-up temp. 0.5~3.0°C /sec. Time ( sec. ) Note: The temperature refers to the pin of E48SH, measured on the pin +Vout joint. LEAD FREE (SAC) PROCESS RECOMMEND TEMP. PROFILE Temp Peak Temp.
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Page 13: Mechanical Drawing
MECHANICAL DRAWING SURFACE-MOUNT MODULE Pin No. Name Function +Vin ON/OFF -Vin -Vout -SENSE TRIM +SENSE +Vout E48SH3R330_02162007 THROUGH-HOLE MODULE Positive input voltage Remote ON/OFF Negative input voltage Negative output voltage Negative remote sense Output voltage trim Positive remote sense Positive output voltage... - Page 14 MECHANICAL DRAWING (WITH HEATSPREADER) THROUGH-HOLE MODULE E48SH3R330_02162007...
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Page 15: Part Numbering System
PART NUMBERING SYSTEM Type of Input Number of Product Product Voltage Outputs E- Eighth 48-36V~75V S- Single H-50A series 3R3 - 3.3V Brick MODEL LIST MODEL NAME E48SH1R250NRFA 36V~75V E48SH1R540NRFA 36V~75V E48SH1R840NRFA 36V~75V E48SH2R535NRFA 36V~75V E48SH3R330NRFA 36V~75V E48SH05020NRFA 36V~75V E48SH12010NRFA 36V~75V Default remote on/off logic is negative and pin length is 0.170”...