TECHNICAL SPECIFICATIONS

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

PARAMETER

NOTES and CONDITIONS

E48SR12007 (Standard)

 

 

Min.

Typ.

Max.

Units

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 CHARACTERISTICS

 

 

 

 

 

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

Pout max rated power

-10

 

10

%

Output Voltage Remote Sense Range

Pout max rated power

 

 

10

%

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

E48SR12007_05222008

2

Page 2
Image 2
Delta Electronics E48SR12007 manual Technical Specifications, Parameter

E48SR12007 specifications

The Delta Electronics E48SR12007 is a high-performance power supply designed to meet the growing demands of industrial applications. With a focus on reliability and efficiency, this power supply is ideal for use in telecommunications, data centers, and various industrial automation systems.

One of the main features of the E48SR12007 is its compact design, making it suitable for space-constrained environments. With a form factor that aligns with the industry standards, it allows for easy integration into existing systems without requiring significant modifications. This compactness does not compromise its power output, as it delivers a robust output of 1200W, providing ample power for high-demand applications.

A key technology incorporated into the E48SR12007 is its active power factor correction (PFC). This feature enhances the efficiency of the power supply by minimizing harmonic distortion and ensuring compliance with various international standards. By optimizing power usage, the power supply not only reduces operational costs but also contributes to a more sustainable energy footprint.

The E48SR12007 also boasts a wide input voltage range, accommodating variations in power supply from 40V to 72V, which makes it versatile across different geographical regions and applications. Furthermore, it features a low no-load power consumption, which is increasingly important given the economic and environmental focus on energy efficiency.

In terms of reliability, the E48SR12007 demonstrates outstanding performance with an MTBF (Mean Time Between Failures) of over 300,000 hours. This durability is complemented by built-in protection mechanisms, including over-voltage, over-current, and short-circuit protection, safeguarding sensitive equipment from potential damage.

Thermal management is another critical aspect of this power supply. The E48SR12007 utilizes advanced thermal design strategies, including optimal airflow and heat dissipation features, ensuring stable operation even in demanding conditions. The fan design is both efficient and quiet, catering to environments that require minimal acoustic interference.

In summary, the Delta Electronics E48SR12007 stands out with its compact design, robust power output, active PFC, extensive protection features, and impressive reliability. It is a reliable choice for industries seeking a power supply that combines efficiency with high performance, making it a popular selection among engineers and designers alike.