Delta Electronics E48SR User Manual

Delphi Series E48SR, 66W Eighth Brick Family DC/DC Power Modules: 48V in, 5.0V/12A out

The Delphi Series E48SR 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 family provides up to 66 watts of power or 25A of output current

(1.8V and below) in an industry standard footprint. 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.

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

and temperature conditions. The Delphi Series converters meet all safety

requirements with basic insulation.

All

FEATURES

 High Efficiency: 91.5% @ 5.0V/12A

 Size: 58.4mmx22.80mmx8.4mm

(2.30”x0.90”x0.33”)

 Standard footprint

 Industry standard pin out

 Fixed frequency operation: 350KHz

 Input UVLO, Output OCP, OVP, OTP

 1500V isolation

 Basic insulation

 No minimum load required

 2:1 Input voltage range

 ISO 9001, TL 9000, ISO 14001, QS 9000,

OHSAS 18001 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

OPTIONS

 SMT or through-hole versions

 Positive on/off logic

 Short pin lengths

APPLICATIONS

 Telecom/Datacom

 Wireless Networks

 Optical Network Equipment  Server and Data Storage

 Industrial/Testing Equipment

DATASHEET DS_E48SR05012_05222008

TECHNICAL SPECIFICATIONS

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

PARAMETER NOTES and CONDITIONS E48SR05012 (Standard)

ABSOLUTE MAXIMUM RATINGS

Input Voltage

Continuous 75 Vdc

Transient (100ms) 100ms 100 Vdc Operating Temperature Refer to Figure 21 for measuring point -40 121 °C Storage Temperature -55 125 °C Input/Output Isolation Voltage 1500 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 1.5 2 2.5 Vdc

Input Over-Voltage Lockout Turn-Off Voltage Threshold 100 105 107 Vdc Turn-On Voltage Threshold 97 102 104 Vdc Maximum Input Current 100% Load, 36Vin 1.83 A No-Load Input Current 40 mA Off Converter Input Current 4 mA Inrush Current(I2t) 1 A2s Input Reflected-Ripple Current P-P thru 12µH inductor, 5Hz to 20MHz 20 mA Input Voltage Ripple Rejection 120 Hz dB

OUTPUT CHARACTERISTICS

Output Voltage Set Point Vin=48V, Io=Io.max, Tc=25°C 4.925 5.0 5.075 Vdc Output Voltage Regulation

Over Load Io=Io,min to Io,max ±3 ±10 mV

Over Line Vin=36V to 75V ±3 ±10 mV

Over Temperature Tc=-40°C to 85°C ±15 mV

Total Output Voltage Range over sample load, line and temperature 4.9 5.1 V Output Voltage Ripple and Noise 5Hz to 20MHz bandwidth

Peak-to-Peak Full Load, 1µF ceramic, 10µF tantalum 60 90 mV

RMS Full Load, 1µF ceramic, 10µF tantalum 15 30 mV

Operating Output Current Range 0 12 A Output DC Current-Limit Inception Output Voltage 10% Low 110 150 %

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 170 mV

Negative Step Change in Output Current 75% Io.max to 50% Io.max 170 mV

Settling Time (within 1% Vout nominal) 200 us

Turn-On Transient

Start-Up Time, From On/Off Control 7 ms

Start-Up Time, From Input 7 ms

Maximum Output Capacitance Full load; 5% overshoot of Vout at startup 5000 µF

EFFICIENCY

100% Load 91.5 % 60% Load 91 %

ISOLATION CHARACTERISTICS

Input to Output 1500 Vdc Isolation Resistance 10 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 0.7 V

Logic High (Module Off) Von/off at Ion/off=0.0 µA 2 18 V

ON/OFF Control, Positive Remote On/Off logic

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

Logic High (Module On) Von/off at Ion/off=0.0 µA 2 18 V

ON/OFF Current (for both remote on/off logic) Ion/off at Von/off=0.0V 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; % of nominal Vout 6 V

GENERAL SPECIFICATIONS

MTBF Io=80% of Io, max; 300LFM @25C 3.06 M hours Weight 19.6 grams Over-Temperature Shutdown Refer to Figure 21 for measuring point 125 °C

Min. Typ. Max. Units

Across Pins 9 & 5, Pout ≦ max rated power

Pout ≦ max rated power

-10% 10% % 10 %

DS_E48SR05012_05222008

ELECTRICAL CHARACTERISTICS CURVES

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

maximum input voltage at 25°C

Figure 3: Typical full load input characteristics at room

temperature

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

nominal, and maximum input voltage at 25°C.

DS_E48SR05012_05222008

ELECTRICAL CHARACTERISTICS CURVES

For Negative Remote On/Off Logic

Figure 4: Turn-on transient at full rated load current (resistive load) (2 ms/div). Vin=48V.Top Trace: Vout, 2V/div; Bottom Trace: ON/OFF input, 5V/div

For Positive Remote On/Off Logic

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

Vin=48V.Top Trace: Vout, 2V/div; Bottom Trace: ON/OFF input,

5V/div

Figure 6: Turn-on transient at full rated load current (resistive load) (2 ms/div). Vin=48V.Top Trace: Vout, 2V/div; Bottom

Trace: ON/OFF input, 5V/div

DS_E48SR05012_05222008

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

Vin=48V.Top Trace: Vout, 2V/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 (100mV/div, 200us/div), Bottom Trace: I out (5 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..

/div).

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

current (75%-50%-75% of Io, max; di/dt = 2.5A/µs). Load cap: 330µF, 35m capacitor. Top Trace: Vout (100mV/div, 200us/div), Bottom Trace: I out (5A/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 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. Measure current as shown above

of 12 μH. Capacitor Cs offset

TEST

DS_E48SR05012_05222008

oints

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