E48SP datasheet(2/15 Pages) DELTA

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DS_E48SP12020_08022010

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

Vdc

Transient (100ms)

100ms

100

Vdc

Operating Case 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

Vdc

Input Under-Voltage Lockout

Turn-On Voltage Threshold

32.5

35.5

Vdc

Turn-Off Voltage Threshold

30.5

33.5

Vdc

Lockout Hysteresis Voltage

Vdc

Maximum Input Current

Vin=36V, 100% Load,

7.8

No-Load Input Current

150

Off Converter Input Current

Inrush Current(I

2t)

With 100uF external input capacitor

Start up Current

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

Input Terminal Ripple Current

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

0.16

0.24

Input Reflected-Ripple Current

P-P thru 12µH inductor, 5Hz to 20MHz

Input Voltage Ripple Rejection

120 Hz

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

Over Line

Vin=36V to 75V

+15

Over Temperature

Tc=-40°C to 125°C

±120

Total Output Voltage Range

over sample load, and temperature

11.5

11.85

12.2

Output Voltage Ripple and Noise

5Hz to 20MHz bandwidth

Peak-to-Peak

Full Load, 1µF ceramic, 10µF tantalum

100

200

RMS

Full Load, 1µF ceramic, 10µF tantalum

Operating Output Current Range

Full input voltage range

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

Negative Step Change in Output Current

75% Io.max to 50% Io.max

200

400

Setting Time (within 1% Vout nominal)

200

µs

Turn-On Transient

Start-Up Time, From On/Off Control

Start-Up Time, From Input

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

ISOLATION CHARACTERISTICS

Input to Output

2250

Vdc

Isolation Resistance

MΩ

Isolation Capacitance

1500

FEATURE CHARACTERISTICS

Switching Frequency

220

kHz

ON/OFF Control, Negative Remote On/Off logic

Logic Low (Module On)

Von/off

-0.7

0.8

Logic High (Module Off)

Von/off

2.4

ON/OFF Control, Positive Remote On/Off logic

Logic Low (Module Off)

Von/off

-0.7

0.8

Logic High (Module On)

Von/off

2.4

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

Ion/off at Von/off=0.0V

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

Ion/off at Von/off=2.4V

µA

Leakage Current (for both remote on/off logic)

Logic High, Von/off=15V

µA

Output Over-Voltage Protection

Over full temp range; % of nominal Vout

14.6

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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