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Input characteristics, Output characteristics, Efficiency – Delta Electronics Delphi Series E24SR User Manual

Page 2: Isolation characteristics, Feature characteristics, General specifications, Mtbf, Technical specifications

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DS_E24SR05012_01032008


2

TECHNICAL SPECIFICATIONS

(T

A

=25°C, airflow rate=300 LFM, V

in

=

24

Vdc, nominal Vout unless otherwise noted.)

PARAMETER

NOTES and CONDITIONS

E24SR05012 (Standard)

Min. Typ. Max. Units

ABSOLUTE MAXIMUM RATINGS

Input Voltage

Continuous

36

Vdc

Transient (100ms)

100ms

50

Vdc

Operating Temperature

Refer to figure 21 for measuring point

-40

118

°C

Storage Temperature

-55

125

°C

Input/Output Isolation Voltage

2250

Vdc

INPUT CHARACTERISTICS

Operating Input Voltage

18

36

Vdc

Input Under-Voltage Lockout

Turn-On Voltage Threshold

16

17

17.8

Vdc

Turn-Off Voltage Threshold

15

16

17

Vdc

Lockout Hysteresis Voltage

0.7

1

1.5

Vdc

Maximum Input Current

100% Load, 18Vin

3.9

A

No-Load Input Current

80

150

mA

Off Converter Input Current

3

10

mA

Inrush Current (I

2

t)

0.1

A

2

s

Input Reflected-Ripple Current

P-P thru 12µH inductor, 5Hz to 20MHz

15

mA

Input Voltage Ripple Rejection

120 Hz

55

dB

OUTPUT CHARACTERISTICS

Output Voltage Set Point

Vin=24V, Io=Io.max, Tc=25°C

4.925

5.075

Vdc

Output Voltage Regulation

Over Load

Io=Io, min to Io, max

±3

±10

mV

Over Line

Vin=18V to36V

±3

±10

mV

Over Temperature

Tc=-40°C to100°C

±50

mV

Total Output Voltage Range

Over sample load, line and temperature

4.875

5

5.125

V

Output Voltage Ripple and Noise

5Hz to 20MHz bandwidth

Peak-to-Peak

Full Load, 1µF ceramic, 10µF tantalum

50

100

mV

RMS

Full Load, 1µF ceramic, 10µF tantalum

15

30

mV

Operating Output Current Range

0

12

A

Output Over Current Protection

Output Voltage 10% Low

110

140

%

DYNAMIC CHARACTERISTICS

Output Voltage Current Transient

10µF Tan & 1µF Ceramic load cap, 0.1A/µs

Positive Step Change in Output Current

50% Io.max to 75% Io.max

150

250

mV

Negative Step Change in Output Current

75% Io.max to 50% Io.max

150

250

mV

Settling Time (within 1% Vout nominal)

150

us

Turn-On Transient

Start-Up Time, From On/Off Control

5

ms

Start-Up Time, From Input

5

ms

Back bias start-up

≤ 90% of nominal output voltage

Back drive current limit while pin on-off is enabled

Io=0A

0.1

A

Back drive current limit while pin on-off is disabled

Io=0A

50

mA

Maximum Output Capacitance

Full load; CR mode;5% overshoot of Vout at startup

5000

µF

EFFICIENCY

100% Load

90.5

%

60% Load

90.5

%

ISOLATION CHARACTERISTICS

Input to Output

2250

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)

-0.7

0.5

V

Logic High (Module Off)

3

18

V

ON/OFF Control, Positive Remote On/Off logic

Logic Low (Module Off)

-0.7

0.5

V

Logic High (Module On)

3

18

V

On/off pin open circuit voltage

9.6

V

On/off pin pull down resistance

12

Kohm

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;

5.75

7

V

GENERAL SPECIFICATIONS

MTBF

Io=80% of Io, max; Ta=25°C, 300LFM airflow

3.86

M hours

Weight

22.0

grams

Over-Temperature Shutdown

Refer to figure 21 for measuring point

123

°C