Delta Electronics E48SR12007 User Manual

FEATURES

 High efficiency: 92.0% @ 12V/7A

 Size: 58.4mmx22.80mmx8.4mm

(2.30”x0.90”x0.33”)

 Standard footprint

 Industry standard pin out

 2:1 Input voltage range

 Fixed frequency operation

 Input UVLO, Output OCP, OVP, OTP

 2250V isolation and basic insulation

 No minimum load required

 ISO 9001, TL 9000, ISO 14001, QS9000,

OHSAS18001 certified manufacturing

facility

 UL/cUL 60950-1 (US & Canada)

recognized, and TUV (EN60950-1)

certified

 CE mark meets 73/23/EEC and

93/68/EEC directive

Delphi Series E48SR12007, 84W Eighth Brick

DC/DC Power Modules: 48V in, 12V/7A out

The Delphi Series E48SR12007 Eighth Brick, 48V input, single output,

isolated DC/DC converter is the latest offering from a world leader in

power systems technology and manufacturing ― Delta Electronics,

Inc. This product provides 84 watts of power with 92.0% efficiency in

an industry standard footprint. With creative design technology and

optimization of component placement, this converter possesses

outstanding electrical and thermal performances, as well as extremely

high reliability under highly stressful operating conditions.

E48SR models are fully protected from abnormal input/output voltage,

current, temperature conditions and also meet all safety requirements

with basic insulation.

All Delphi

OPTIONS

 Positive On/Off logic

 Short pin lengths

 SMD pin

APPLICATIONS

 Telecom/Datacom

 Wireless Networks

 Optical Network Equipment  Server and Data Storage

 Industrial/Test Equipment

DATASHEET DS_E48SR12007_05222008

TECHNICAL SPECIFICATIONS

(TA=25°C, airflow rate=300 LFM, Vin=48Vdc, nominal Vout unless otherwise noted.)

PARAMETER NOTES and CONDITIONS E48SR12007 (Standard)

ABSOLUTE MAXIMUM RATINGS

Input Voltage

Continuous 80 Vdc Transient (100ms) 100ms 100 Vdc

Operating Temperature Refer to Figure21 for measuring point -40 115 °C Storage Temperature -55 125 °C Input/Output Isolation Voltage 2250 Vdc

INPUT CHARACTERISTICS

Operating Input Voltage 36 75 Vdc Input Under-Voltage Lockout

Turn-On Voltage Threshold 33 34 35 Vdc Turn-Off Voltage Threshold 31 32 33 Vdc

Lockout Hysteresis Voltage 1 2 3 Vdc Maximum Input Current 100% Load, 36Vin 3.0 A No-Load Input Current 60 100 mA Off Converter Input Current 3 10 mA Inrush Current (I2t) 1 A2s Input Reflected-Ripple Current P-P thru 12µH inductor, 5Hz to 20MHz 25 mA Input Voltage Ripple Rejection 120 Hz 50 dB

OUTPUT CHARACTERISTICS

Output Voltage Set Point Vin=48V, Io=Io.max, Tc=25°C 11.880 12.000 12.120 Vdc Output Voltage Regulation

Over Load Io=Io,min to Io,max ±10 ±15 mV

Over Line Vin=36V to 75V ±10 ±15 mV

Over Temperature Tc=-40°C to 85°C ±100 mV Total Output Voltage Range Over sample load, line and temperature 11.76 12.24 Vdc Output Voltage Ripple and Noise 5Hz to 20MHz bandwidth

Peak-to-Peak Full Load, 1µF ceramic, 10µF tantalum 40 120 mV

RMS Full Load, 1µF ceramic, 10µF tantalum 10 25 mV Operating Output Current Range 0 7 A Output Over Current Protection 110 140 %

DYNAMIC CHARACTERISTICS

Output Voltage Current Transient 48V, 10µF Tan & 1µF Ceramic load cap, 0.1A/µs

Positive Step Change in Output Current 50% Io.max to 75% Io.max 200 360 mV

Negative Step Change in Output Current 75% Io.max to 50% Io.max 200 360 mV

Settling Time (within 1% Vout nominal) 200 us Turn-On Transient

Start-Up Time, From On/Off Control 6 12 ms

Start-Up Time, From Input 6 12 ms Maximum Output Capacitance Full load; 5% overshoot of Vout at startup 2000 µF

EFFICIENCY

100% Load 92.0 % 60% Load 92.0 %

ISOLATION CHARAC TERISTICS

Input to Output 2250 Vdc Isolation Resistance 100 MΩ Isolation Capacitance 1500 pF

FEATURE CHARACTERISTICS

Switching Frequency 350 kHz ON/OFF Control, Negative Remote On/Off logic

Logic Low (Module On) Von/off at Ion/off=1.0mA 0 0.7 V

Logic High (Module Off) Von/off at Ion/off=0.0 µA 2.4 18 V ON/OFF Control, Positive Remote On/Off logic

Logic Low (Module Off) Von/off at Ion/off=1.0mA 0 0.7 V

Logic High (Module On) Von/off at Ion/off=0.0 µA 2.4 18 V

ON/OFF Current (for both remote on/off logic) Ion/off at Von/off=0.0V 0.7 1 mA

Leakage Current (for both remote on/off logic) Logic High, Von/off=15V 50 uA Output Voltage Trim Range Output Voltage Remote Sense Range Output Over-Voltage Protection Over full temp range; 14.4 V

GENERAL SPECIFICATIONS

MTBF Io=80% of Io, max; Ta=25°C, airflow rate=200FLM 2.03 M hours Weight 19.6 Grams Over-Temperature Shutdown Refer to Figure 21 for measuring point 120 °C

Min. Typ. Max. Units

Pout ≦ max rated power Pout ≦ max rated power

-10 10 % 10 %

E48SR12007_05222008

ELECTRICAL CHARACTERISTICS CURVES

Figure 1: Efficiency vs. load current for minimum, nominal, and

maximum input voltage at 25°C, 300LFM airflow.

Figure 3: Typical full load input characteristics at 25°C

Figure 2: Power dissipation vs. load current for minimum,

nominal, and maximum input voltage at 25°C, 300LFM airflow.

E48SR12007_05222008

ELECTRICAL CHARACTERISTICS CURVES

For Negative Remote On/Off Logic

Figure 4: Turn-on transient at full rated load current (resistor

load) (2ms/div). Vin=48V. Top Trace: Vout, 5V/div; Bottom

Trace: ON/OFF input, 5V/div

For Positive Remote On/Off Logic

Figure 5: Turn-on transient at zero load current (2ms/div).

Vin=48V. Top Trace: Vout, 5V/div; Bottom Trace: ON/OFF input,

5V/div

Figure 6: Turn-on transient at full rated load current (resistor

load) (2ms/div) for positive on/off mode. Vin=48V. Top Trace: Vout, 5V/div; Bottom Trace: ON/OFF input, 5V/div

E48SR12007_05222008

Figure 7: Turn-on transient at zero load current (2ms/div) for

positive on/off mode. Vin=48V. Top Trace: Vout, 5V/div; Bottom Trace: ON/OFF input, 5V/div

ELECTRICAL CHARACTERISTICS CURVES

)

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 (0.2V/div, 200us/div), Bottom Trace: Iout (1 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

/div). Scope

Figure 9: Output voltage response to step-change in load

current (75%-50%-75% of Io, max; di/dt = 2.5A/µs). Load cap: 47µF, 35m capacitor. Top Trace: Vout (0.2V/div, 200us/div), Bottom Trace: Iout (1A/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

ESR solid electrolytic capacitor and 1µF ceramic

Figure 10: Test set-up diagram showing measurement points for Input Terminal Ripple Current and Input Reflected Ripple

Current. Note: Measured input reflected-ripple current with a simulated source Inductance (L possible battery impedance. Measured current as shown below

of 12 μH. Capacitor Cs offset

TEST

Figure 11: Input Terminal Ripple Current, i

current and nominal input voltage with 12µH source impedance

and 33µF electrolytic capacitor (500 mA/div, 2us/div)

, at full rated output

E48SR12007_05222008

+ 10 hidden pages