Datasheet

ManualsBrandsDELTA ELECTRONICS ManualsPSU ComponentsDC/DC converter (print) 12 Vdc 4 A 48 W No. of outputs: 1 x

DATASHEET

DS_E36SR12004_06192012

FEATURES

 High efficiency: 90.5% @ 12V/4A

 Size:

58.4x22.8x8.73mm (2.30”x0.90”x0.34”)

 Standard footprint

 Industry standard pin out

 Fixed frequency operation

 Input UVLO, Output OCP, OVP, OTP

 1500V isolation and basic insulation

 ISO 9001, TL 9000, ISO 14001, QS9000,

OHSAS18001 certified manufacturing

facility

 UL/cUL 60950-1 (US & Canada)

recognized

APPLICATIONS

 Te lec om /D ata c om

 Wireless Networks

 Optical Network Equipment

 Server and Data Storage

 Industrial/Test Equipment

OPTIONS

 Positive On/Off logic

Delphi E36SR Series DC/DC Power Modules:

18~60 in, 12V/4A out, 48W

The Delphi E36SR series, Eighth brick sized, 24V/48V input, single

output, isolated DC/DC converter, is the latest offering from a world

leader in power system technology and manufacturing ― Delta

Electronics, Inc. The E36SR12V provides up to 48 watts of power in an

industry standard footprint and pinout. With creative design technology

and optimization of component placement, these converters possess

outstanding electrical and thermal performances, 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.

Summary of content (12 pages)

PAGE 1
FEATURES High efficiency: 90.5% @ 12V/4A Size: 58.4x22.8x8.73mm (2.30”x0.90”x0.
PAGE 2
TECHNICAL SPECIFICATIONS (TA=25°C, airflow rate=300 LFM, Vin=24/48Vdc, nominal Vout unless otherwise noted.) PARAMETER NOTES and CONDITIONS E36SR12004 Min.
PAGE 3
ELECTRICAL CHARACTERISTICS CURVES 5.5 90 5.0 88 4.5 86 4.0 84 3.5 LOSS(W) EFFICIENCY(%). 92 82 80 18V 24V 55V 48 78 76 3.0 2.5 18V 24V 55V 48v 2.0 1.5 74 1.0 72 0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6 4.0 4.4 OUTPUT CURRENT(A) 0.0 0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6 4.0 4.4 OUTPUT CURRENT(A) Figure 1: Efficiency vs. load current for minimum, nominal, and maximum input voltage at 25°C, 300LFM airflow. Figure 2: Power dissipation vs.
PAGE 4
ELECTRICAL CHARACTERISTICS CURVES For Input Voltage On/Off Figure 4: Turn-on transient at full rated load current (5ms/div). Vin=48V. Top Trace: Input Voltage, 20V/div; Bottom Trace: Vout, 5V/div Figure 5: Turn-on transient at min load current (5ms/div). Vin=48V. Top Trace: Input Voltage, 20V/div; Bottom Trace: Vout, 5V/div For negative On/Off Logic Figure 6: Turn-on transient at full rated load current (5ms/div) for negative on/off mode. Vin=48V.
PAGE 5
ELECTRICAL CHARACTERISTICS CURVES Figure 8: Output voltage response to step-change in load current (75%-50%-75% of Io, max; di/dt = 0.01A/µs). Load cap: 10µF tantalum capacitor and 1µF ceramic capacitor. Top Trace: Vout (0.1V/div, 1ms/div), Bottom Trace: Iout (1A/div). Scope measurement should be made using a BNC cable (length shorter than 20 inches).
PAGE 6
ELECTRICAL CHARACTERISTICS CURVES Copper Strip Vo(+) 10u 1u SCOPE RESISTIV LOAD Vo(-) Figure 12: Input reflected ripple current, is, through a 12µH source inductor at nominal input voltage and rated load current (100 mA/div, 2us/div) Figure 13: Output voltage noise and ripple measurement test setup 13 12 OUTPUT VOLTAGE(V) 11 10 9 8 7 6 5 4 3 2 0.4 0.9 1.4 1.9 2.4 2.9 3.4 3.9 4.4 4.9 5.4 5.
PAGE 7
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 < 0.7 Ω at 100 kHz) mounted close to the input of the module to improve the stability.
PAGE 8
FEATURES DESCRIPTIONS Vi(+) Over-Current Protection Sense(+) 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 mode). The modules will try to restart after shutdown. If the overload condition still exists, the module will shut down again.
PAGE 9
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. If the external resistor is connected between the TRIM and SENSE (+) the output voltage set point increases (Fig. 19). The external resistor value required to obtain a percentage output voltage change △% is defined as: Rtrim − up = 5.1Vo (100 + ∆ ) 510 − − 10(KΩ ) 1.
PAGE 10
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. THERMAL CURVES NTC RESISTOR HOT SPOT Hence, the choice of equipment to characterize the thermal performance of the power module is a wind tunnel.
PAGE 11
MECHANICAL DRAWING (WITHOUT HEAT SPREADER) NOTE: have a typical height of the lowest component (who has to dissipate) of 7.25mm with a tolerance plus max height module/minus 0 mm. Pin No. 1 2 3 4 5 6 7 8 Name Function +Vin ON/OFF -Vin -Vout -Sense Trim +Sense +Vout Positive input voltage Remote ON/OFF Negative input voltage Negative output voltage Negative remote sense Output voltage trim Positive remote sense Positive output voltage Pin Specification: Pins 1-3,5-7 Pins 4 & 8 1.00mm (0.
PAGE 12
PART NUMBERING SYSTEM E 36 S R 120 04 N K Form Input Number of Product Output Output ON/OFF Pin Factor Voltage Outputs Series Voltage Current Logic Length 24/48- S- Single 12V 4A N- Negative K-0.11’’ E- Eighth Brick 18V~60V R – Regular product F A Option Code Space- RoHs 5/6 A- Standard Functions F- RoHS 6/6 (Lead Free) CONTACT: www.delta.com.tw/dcdc USA: Telephone: East Coast: 978-656-3993 West Coast: 510-668-5100 Fax: (978) 656 3964 Email: DCDC@delta-corp.