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Delphi S48SE, 17W 1x1 Brick Series
DC/DC Power Modules: 48V in, 5.0V/3A out
The Delphi S48SE series, 1x1 form factor, 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 surface mount or
through-hole package and provides up to 17 watts of power or 5A of
output current (3.3V and below) in a standard 1x1 form factor
(1.1"x0.96"x0.33"). The pinout is compatible with the industry
standard 1x2 products. 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. Typical
efficiency of 5.0V/3A module is better than 87% and all modules are
fully protected from abnormal input/output voltage, current, and
temperature conditions.
DATASHEET
DS_S48SE05003_12292006
FEATURES
High efficiency: 87% @5.0V/3A
Size: 27.9x24.4x8.3mm (1.1"x0.96"x0.33")
Industry standard 1x2 pinout
SMT and Through-hole versions
2:1 input voltage range
Input UVLO, Output OCP, OVP and OTP
Monotonic startup into normal and pre-bias
loads
Output voltage trim ±10%
2250V isolation and basic insulation
No minimum load required
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
directives
OPTIONS
Positive, negative, or no On/Off
Trim pin
OTP and Output OVP, OCP mode,
auto-restart (default) or latch-up
Surface mounted version
Short pin lengths
APPLICATIONS
Optical Transport
Data Networking
Communications, including Wireless
and traditional Telecom
Servers
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Summary of Contents for Delta Electronics S48SE
- Page 1 Delphi S48SE, 17W 1x1 Brick Series DC/DC Power Modules: 48V in, 5.0V/3A out The Delphi S48SE series, 1x1 form factor, 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.
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Page 2: Technical Specifications
TECHNICAL SPECIFICATIONS = 25°C, airflow rate = 300 LFM, V = 48 Vdc, 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... - Page 3 ELECTRICAL CHARACTERISTICS CURVES 75Vin 48Vin 36Vin OUTPUT CURRENT (A) Figure 1: Efficiency vs. load current for minimum, nominal, and maximum input voltage at 25°C. INPUT VOLTAGE (V) Figure 3: Typical full load input characteristics at room temperature. Figure 5: (For negative remote on/off logic) Turn-on transient at zero load current (5 ms/div).
- Page 4 ELECTRICAL CHARACTERISTICS CURVES (CON.) Figure 7: (For positive remote on/off logic)Turn-on transient at zero load current (5 ms/div). Vin=48V. Top Trace: Vout, 2V/div; Bottom Trace: ON/OFF input, 2V/div. Figure 9: Output voltage response to step-change in load current (50%-75% of Io, max; di/dt = 0.1A/µs). Load cap: 10µF tantalum capacitor and 1µF ceramic capacitor.
- Page 5 ELECTRICAL CHARACTERISTICS CURVES Figure 11: Input Terminal Ripple Current, i current and nominal input voltage with 12µH source impedance and 33µF electrolytic capacitor (200mA/div, 1us/div) Copper Strip Vo(+) Vo(-) Figure 13: Output voltage noise and ripple measurement test setup 48Vin OUTPUT CURRENT (A) Figure 15: Output voltage vs.
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Page 6: 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 10 to 100 µF electrolytic capacitor (ESR <... -
Page 7: Features Descriptions
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, and enter hiccup mode or latch mode, which is optional. - Page 8 FEATURES DESCRIPTIONS (CON.) Output Voltage Adjustment 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 Vo(+) or Vo(-). The TRIM pin should be left open if this feature is not used.
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Page 9: 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 10 PICK AND PLACE LOCATION SURFACE-MOUNT TAPE & REEL RECOMMENDED PAD LAYOUT (SMD) DS_S48SE05003_12292006...
- Page 11 140~180°C 60~120 sec. Ramp-up temp. 0.5~3.0°C /sec. Time ( sec. ) Note: The temperature refers to the pin of S48SE, measured on the pin +Vout joint. LEAD FREE (SAC) PROCESS RECOMMEND TEMP. PROFILE Temp Peak Temp. 240 ~ 245 ℃...
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Page 12: Mechanical Drawing
MECHANICAL DRAWING Surface-mount module Pin No. Name +Vin -Vin ON/OFF (Optional) -Vout TRIM (Optional) +Vout DS_S48SE05003_12292006 Through-hole module Function Positive input voltage Negative input voltage Remote ON/OFF (Optional) Negative output voltage Output voltage trim (Optional) Positive output voltage... -
Page 13: Part Numbering System
PART NUMBERING SYSTEM Product Input Number of Product Type Voltage Outputs Series S - Small 48V- S - Single 1x1, 5A Power 36V~75V MODEL LIST MODEL NAME S48SE1R805NRFA 36V~75V S48SE3R305NRFA 36V~75V S48SE05003NRFA 36V~75V S48SE12001NRFA 36V~75V S48SE15001NRFA 36V~75V Note: Default remote on/off logic is negative; Default pin length is 0.170”;...