E48SP12020NTFA datasheet(2/15 Pages) DELTA

Part #	E48SP12020NTFA

Description	Delphi Series E48SP Eighth Brick Family DC/DC Power Modules: 48V in, 12V/20A out

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Manufacturer	DELTA [Delta Electronics, Inc.]

Direct Link	http://www.deltaww.com

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DS_E48SP12020_08252011

2

TECHNICAL SPECIFICATIONS

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

PARAMETER

NOTES and CONDITIONS

E48SP12020 (Standard)

Min.

Typ.

Max.

Units

ABSOLUTE MAXIMUM RATINGS

Input Voltage

Continuous

80

Vdc

Transient (100ms)

100ms

100

Vdc

Operating Hot Spot Temperature (Without heat spreader)

Refer to figure 18 for measuring point

-40

122

°C

Operating Case Temperature (With heat spreader)

Refer to figure 20 for measuring point

-40

110

°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

32.5

34

35.5

Vdc

Turn-Off Voltage Threshold

30.5

32

33.5

Vdc

Lockout Hysteresis Voltage

1

2

3

Vdc

Maximum Input Current

Vin=36V, 100% Load,

7

7.8

A

No-Load Input Current

70

150

mA

Off Converter Input Current

8

12

mA

Inrush Current(I

2t)

With 100uF external input capacitor

1

A

2s

Start up Current

Peak, Vin=36V, 100% Load, With 5000uF Co

7

12

A

Input Terminal Ripple Current

RMS, Vin=48V, With 100uF input cap.

0.16

0.24

A

Input Reflected-Ripple Current

P-P thru 12µH inductor, 5Hz to 20MHz

6

mA

Input Voltage Ripple Rejection

120 Hz

60

dB

OUTPUT CHARACTERISTICS

Output Voltage Set Point

Vin=48V, Io=Io.max, Tc=25°C

11.67

11.85

12.02

Vdc

Output Voltage Regulation

Over Load

Io=Io,min to Io,max

+20

mV

Over Line

Vin=36V to 75V

+15

mV

Over Temperature

Tc=-40°C to 125°C

±120

mV

Total Output Voltage Range

over sample load, and temperature

11.5

11.85

12.2

V

Output Voltage Ripple and Noise

5Hz to 20MHz bandwidth

Peak-to-Peak

Full Load, 1µF ceramic, 10µF tantalum

100

200

mV

RMS

Full Load, 1µF ceramic, 10µF tantalum

40

80

mV

Operating Output Current Range

Full input voltage range

0

20

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

200

400

mV

Negative Step Change in Output Current

75% Io.max to 50% Io.max

200

400

mV

Setting Time (within 1% Vout nominal)

200

µs

Turn-On Transient

Start-Up Time, From On/Off Control

30

40

ms

Start-Up Time, From Input

30

40

ms

Maximum Output Capacitance

Full load; no overshoot of Vout at startup

5000

µF

EFFICIENCY

100% Load

Vin=48V

93.5

94.5

%

60% Load

Vin=48V

94

95

%

ISOLATION CHARACTERISTICS

Input to Output

2250

Vdc

Isolation Resistance

10

MΩ

Isolation Capacitance

1500

pF

FEATURE CHARACTERISTICS

Switching Frequency

245

kHz

ON/OFF Control, Negative Remote On/Off logic

Logic Low (Module On)

Von/off

-0.7

0.8

V

Logic High (Module Off)

Von/off

2.4

50

V

ON/OFF Control, Positive Remote On/Off logic

Logic Low (Module Off)

Von/off

-0.7

0.8

V

Logic High (Module On)

Von/off

2.4

50

V

ON/OFF Current (for both remote on/off logic)

Ion/off at Von/off=0.0V

0.5

mA

ON/OFF Current (for both remote on/off logic)

Ion/off at Von/off=2.4V

10

µA

Leakage Current (for both remote on/off logic)

Logic High, Von/off=15V

50

µA

Output Over-Voltage Protection

Over full temp range; % of nominal Vout

14.6

18

V

GENERAL SPECIFICATIONS

MTBF

Io=100% of Io, max; 300LFM; Ta=25°C

1.19

M hours

Weight

Open frame

29.1

grams

Weight

With heat spreader

39.2

grams

Over-Temperature Shutdown ( Without heat spreader)

Refer to figure 18 for measuring point

132

°C

Over-Temperature Shutdown

(With heat spreader)

Refer to figure 20 for measuring point

120

°C

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