QSB15048W Series

www.xppower.com

2

DC-DC Converter

Input

Output

Characteristic

Minimum

Typical

Maximum

Units

Notes & Conditions

Output Voltage

12

48

VDC

See Models and Ratings table

Output Trim

±10

%

See Application Note (28 Vout at 9-13 Vin Trim: +0/-10%)

Initial Set Accuracy

±1.5

%

At full load and 36 V 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 for single/dual output

Transient Response

±5.0

%

Maximum deviation, recovering to less than 1% in

500 µs for 25% step load change. For 5V output, add

1000 µF cap, for others add 100 µF

Start Up Time

100

150

ms

Output Voltage Rise Time

30

50

ms

Ripple & Noise

mV pk-pk

See models and ratings table

Overload Protection

105

160

200

%

Short Circuit Protection

Continuous hiccup mode, with auto recovery

Maximum Capacitive Load

See Models and Ratings table

Temperature Coefficient

0.03

%/ ˚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

75

VDC

Input Surge

100

VDC for 100 ms

Undervoltage Lockout

On: >8.5 V

9.0

9.5

VDC

On

Off: <7.5 V

8.0

8.5

Off

Lockout Hysteresis

1.0

VDC

Idle Current

12

18

mA

When output is remotely turned off

Inrush Current

Recommended Input Fuse

30

A

Fact acting type

Input Reflected Ripple Current

50

mA pk-pk

Through 10 µH inductor

General

Characteristic

Minimum

Typical

Maximum

Units

Notes & Conditions

Efficiency

90

%

See Models and Ratings table

Isolation: Input to Output

1500

VDC

60 s

Isolation: Input and output to Case

1500

VDC

60 s

Switching Frequency

200

kHz

Isolation Resistance

Ω

Isolation Capacitance

3500

pF

12 & 15 V

2500

24, 28 & 48 V

Power Density

54

Mean Time Between Failure

500

kHrs

12 & 15 V MIL-HDBK-217F, +25 °C GB

800

24, 28 & 47 V MIL-HDBK-217F, +25 °C GB

Weight

0.24 (109.0)

lb (g)

Environmental

Characteristic

Minimum

Typical

Maximum

Units

Notes & Conditions

Operating Base Plate Temperature

-40

+100

°C

Storage Temperature

-55

+105

°C

Thermal Protection

+110

°C

Humidity

95

%RH

Non-condensing

Cooling

Base plate cooled