www.recom-power.com

REV.: 0/2019

RBB-4

DC/DC Converter

RBBA3000

Series

PROTECTIONS

Parameter

Condition

Value

Input Over Voltage Protection

150ms delay

65VDC

Input Over Current Protection

low line to high line

latch off, 55A typ.

Output Short Circuit Protection

fixed

hiccup mode, 55A typ.

hiccup mode, 0-50A

Output Over Voltage Protection (OVP)

latch off, 65VDC typ.

Over Temperature Protection (OTP)

case temperature (measured on tc point)

110°C

Notes:

Note7: The RBBA3000 series offers the feature of trimming the output current over a range between 0A and 50A by

Iout

max

k

1

k

2

k

3

50A

25

3.3

2.5

Practical Example RBBA3000-50:

Calculation:

R

25 x 40

= 15.38kW

3.3 x 50 - 2.5 x 40

V

2.5 x

40

= 1.67V

60

R

k

k

V

k

Iout

set

Iout

max

Iout

max

= maximum output current [VDC]

Iout

set

= trimmed output current [VDC]

k

= trim up factor

[ ]

V

setI

= set voltage

[VDC]

R

Iset

= trim resistor

[k

W]

R

+V

in

-V

in

I

set

+V

out

-V

out

R

Iset

V

setI

Output Current Setting

REGULATIONS

Parameter

Condition

Value

Output Accuracy

±0.5% typ.

Line Regulation

low line to high line, full load

±1.0% typ.

Load Regulation

0% to 100% load

Transient Response

25% load step

recovery time

600mV max.

200µs typ.

Remote Sense

between +Vout and +Sense

between -Vout and -Sense

1.0VDC max.

0.2VDC max.