DS_V48SC12007_04262016

2

TECHNICAL SPECIFICATIONS

PARAMETER

NOTES and CONDITIONS

V48SC12007NMFA/B

V48SC12007NRFA/H

Min.

Typ.

Max.

Units

ABSOLUTE MAXIMUM RATINGS

Input Voltage

Continuous

80

Vdc

Transient (100ms)

100ms

100

Vdc

Operating Ambient Temperature

-40

85

°C

Storage Temperature

-55

125

°C

Input/Output Isolation Voltage

1500

Vdc

INPUT CHARACTERISTICS

Operating Input Voltage

36

48

75

Vdc

Input Under-Voltage Lockout

Turn-On Voltage Threshold

32.5

34.5

35.5

Vdc

Turn-Off Voltage Threshold

29.5

31.5

33.5

Vdc

Lockout Hysteresis Voltage

1.5

3

4

Vdc

Maximum Input Current

100% Load, 36Vin

4

A

No-Load Input Current

60

mA

Off Converter Input Current

8

12

mA

Inrush Current (I

With 100uF external input capacitor

1

A

Input Reflected-Ripple Current

P-P thru 12µH inductor, 5Hz to 20MHz

20

mA

Input Voltage Ripple Rejection

120 Hz

-60

dB

OUTPUT CHARACTERISTICS

Output Voltage Set Point

Vin=48V, Io=Io.max, Tc=25°C

11.82

12

12.18

Vdc

Output Voltage Regulation

Over Load

Io=Io, min to Io, max

±5

mV

Over Line

Vin=36V to 75V

±5

mV

Over Temperature

Tc=-40°C to125°C

±180

mV

Total Output Voltage Range

Over sample load, line and temperature

11.64

12.36

V

Output Voltage Ripple and Noise

5Hz to 20MHz bandwidth

Peak-to-Peak

max load on output, 20MHz bandwidth

10uF tantalum + 1uF ceramic capacitor

100

mV

RMS

max load on output, 20MHz bandwidth

10uF tantalum + 1uF ceramic capacitor

30

mV

Operating Output Current Range

0

7.5

A

Output Over Current Protection

Output Voltage 10% Low

110

140

%

DYNAMIC CHARACTERISTICS

Output Voltage Current Transient

load capacitor10uF tantalum + 1u ceramic 0.1A/uS

Frequency= 250Hz

Positive Step Change in Output Current

50% Io.max to 75% Io.max

300

mV

Negative Step Change in Output Current

75% Io.max to 50% Io.max

300

mV

Settling Time (within 1% Vout nominal)

200

us

Turn-On Transient

Start-Up Delay Time, From On/Off Control or Input

From On/Off Control or Input to 10%Vo

15

ms

Start-Up Rise Time, From On/Off Control or Input

From 10%Vo to 90% Vo

40

ms

Maximum Output Capacitance

Full load; 5% overshoot of Vout at startup;

0

3300

µF

EFFICIENCY

100% Load

Vin=48V

92.0

%

60% Load

Vin=48V

92.0

%

ISOLATION CHARACTERISTICS

Input to Output

1500

Vdc

Isolation Resistance

10

MΩ

Isolation Capacitance

1000

pF

FEATURE CHARACTERISTICS

Switching Frequency

420

kHz

ON/OFF Control, Negative Remote On/Off logic

Logic Low (Module On)

Von/off

0

0.7

V

Logic High (Module Off)

Von/off

2.4

5

V

ON/OFF Control, Positive Remote On/Off logic

Logic Low (Module Off)

Von/off

0

0.7

V

Logic High (Module On)

Von/off

2.4

5

V

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

Ion/off at Von/off=0.0V

1

mA

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

Ion/off at Von/off=2.4V

uA

Leakage Current (for both remote on/off logic)

Logic High, Von/off=5V

uA

Output Voltage Trim Range

Max rated current guaranteed at full trim range

-20

10

%

Output Voltage Remote Sense Range

Max rated current guaranteed at full remote sense

range

10

%

Output Over-Voltage Protection

Over full temp range; % of nominal Vout

110

140

%

GENERAL SPECIFICATIONS

MTBF

Per Telecordia SR-332, 80% load, 25°C, 48Vin,

300LFM

4.9

M hours

Weight

Open frame

15

grams

weight

With heat-spreader

24

grams

Over-Temperature Shutdown (Open Frame)

Refer to Figure 21 for Hot spot1 location

(48Vin,80%Io, 200LFM,Airflow from Vout+ to Vin+)

132

°C

Over-Temperature Shutdown (With Heat Spreader)

Refer to Figure 23 for Hot spot2 location

(48Vin,80%Io, 200LFM,Airflow from Vout+ to Vin+)

120

°C

Over-Temperature Shutdown (NTC Resistor)

Refer to Figure 21 for NTC resistor location

125

°C

N

ote: Please attach thermocouple on NTC resistor to test OTP function, the hot spot’s temperature is just for reference.