QSC150 Series

www.xppower.com

2

DC-DC Converter

Input

Output

Characteristic

Minimum

Typical

Maximum

Units

Notes & Conditions

Output Voltage

5

48

VDC

See Models and Ratings table

Output Trim

±10

%

Initial Set Accuracy

±1

%

At full load and nominal input

Minimum Load

0%

No minimum load required

Line Regulation

±0.2

%

From minimum to maximum input at full load

Load Regulation

±0.2

%

From 0% to full load

Transient Response

±5.0

%

Maximum deviation, recovering to less than 1% in

250 µs for 25% step load change.

Start Up Time

30

ms

Output Voltage Rise Time

30

ms

Ripple & Noise

mV pk-pk

See models and ratings table

Overload Protection

110

125

160

%

Short Circuit Protection

Continuous hiccup mode, with auto recovery

Maximum Capacitive Load

See Models and Ratings table

Temperature Coefficient

0.02

%/ ˚C

Overvoltage Protection

115

140

%

Remote On/Off

Output is on if remote on/off (pin 2) is open or high (3.5-75 VDC)

Output turns off if remote on/off (pin 2) is low (<1.2 VDC max)

Characteristic

Minimum

Typical

Maximum

Units

Notes & Conditions

Input Voltage Range

9

36

VDC

24 V nominal

18

75

48 V nominal

Input Current

20/10

A

QSC15024 at 9 V / QSC15048 at 18V

Input Surge

50/100

VDC for 100 ms

QSC15024 / QSC15048

Undervoltage Lockout

>8.0/16.5

8.5/17.0

8.8/17.5

VDC

On: 24 V/48 V

<7.7/15.5

8.0/16.0

8.3/16.5

Off: 24 V/48 V

Lockout Hysteresis

0.6/0.9

VDC

24 V/48 V

Idle Current

5

10

mA

When output is remotely turned off

Inrush Current

0.1

As per ETS300 132-2

Recommended Input Fuse

30/15

A

Time delay fuse - 24 V/48 V

Input Reflected Ripple Current

30

mA pk-pk

Through 12 µH inductor

General

Characteristic

Minimum

Typical

Maximum

Units

Notes & Conditions

Efficiency

92

%

See Models and Ratings table

Isolation: Input to Output

2250

VDC

60 s

Isolation: Input and output to Case

2250

VDC

60 s

Switching Frequency

285/300

kHz

48S12 model / All other models

Isolation Resistance

Ω

Isolation Capacitance

1500

pF

Power Density

90.7

Mean Time Between Failure

309/667

kHrs

S05/S48, MIL-HDBK-217F, +25 °C GB

Weight

0.15 (68.0)

lb (g)

Environmental

Characteristic

Minimum

Typical

Maximum

Units

Notes & Conditions

Operating Base Plate Temperature

-40

+105

°C

Storage Temperature

-55

+125

°C

Thermal Protection

+110

°C

Operating Altitude

3000

m

Humidity

95

%RH

Non-condensing

Cooling

Base plate cooled