CD10.241

CD-Series

DC/DC Converter 24V/24V, 10A, 240W

Inrush current limitation

An active inrush limitation circuit (inrush limiting NTC resistor which is bypassed by a MOSFET) limits the input inrush

current after turn-on of the input voltage.

The charging current into EMI suppression capacitors is disregarded in the first microseconds after switch-on.

Inrush current

typ.

+25°C, cold start, input: 24Vdc

typ.

+60°C, cold start, input: 24Vdc

Inrush energy

typ.

negligible

-25°C to +70°C, input: 24Vdc

Fig. 4-1 Input inrush current, typical behavior

Input Current

Input Voltage

Output Voltage

Ipk 6A

Input:

24Vdc

Output:

24V, 10A, constant current load

Ambient:

25°C

Input current

2A / DIV

Input voltage

5V / DIV

Output voltage 5V / DIV

Time basis:

100ms / DIV

Soft-start function:

After the DC/DC converter is turned on, the internal output current rises slowly to its nominal value. This method

charges the output capacitors (internal and external capacitors) slowly and avoids high input currents during turn-on.

High input currents can produce a high voltage drop on the input wiring (especially with long and thin cables) which

reduces the terminal voltage on the DC/DC converter. If the terminal voltage is below the shut-down voltage, the

DC/DC converter will turn-off and will make a new start-up attempt. This effect is avoided with the integrated soft-

start function. Please note, that this function increases the rise time of the output voltage by a small amount.

Jul. 2017 / Rev. 1.1 DS-CD10.241-EN

All parameters are typical values at 24V, 10A, 24Vdc input voltage, 25°C ambient and

after a 5 minutes run-in time unless otherwise noted.

www.pulspower.com Phone +49 89 9278 0

Germany

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