N

No

otte

es

s

1

Measurement Bandwidth: 20 MHz; Measured with 1 µF ceramic and a

330 µF (470 µF for 12 V output model) aluminum or solid tantalum

capacitor across the output terminals.

2

with a 1 µF ceramic and a 330 µF (470 µF for 12 V output model)

aluminum electrolytic capacitor across the output.

3

External input fusing required. Use a fast acting fuse: 40 A (24 V model),

15 A (48 V, 350 W model).

4

Iout = Iout (max) Measured with the input capacitor, Cbypass = 330 µF,

and 6 µH inductor in series with the power source. Frequencies

>100 kHz.

5

Signal line assumed <3 m in length.

6

This product is only for inclusion by professional installers within other

equipment and must not be operated as a stand-alone product.

7

Negative remote ON/OFF option also available. Add suffix ‘-R’ to part

number, for example see part numbering system.

8

With the enable signal asserted, this is the time from when the input

current reaches 10 % of the final steady state value until the output

voltage reaches 10 % of the nominal output value. Start-up into resistive

load.

9

With Vin > Vin (min.) applied for a minimum of 1 second, this is the time

from when the primary ON/OFF signal is activated until the output

voltage reaches 10 % of the nominal output voltage.

330 µF (470 µF for 12 V model) electrolytic capacitors across the output.

N

No

otte

es

s C

Co

on

nttd

d..

330 µF (470 µF for 12 V model) electrolytic capacitors across the output.

compliant

local Artesyn representative or use the on-line model number search tool

at http://www.artesyn.com/powergroup/products.htm to find a suitable

alternative

PROTECTION

Short-circuit

12 V model RFB300

29.4 A

(Brickwall current

12 V model RFB350

34.4 A

limiting)

28 V model RFB300

12.9 A

28 V model RFB350

14.7 A

Overvoltage protection

12 V model

15 V

(Output shutdown)

28 V model

33.2 V

Overtemperature

(midpoint of baseplate)

110 ºC

shutdown

File Name: rfb300_350.pdf Rev: 03 Feb 2006

For the most current data and application support visit www.artesyn.com/powergroup/products.htm

DC-DC CONVERTERS

300-350 W Half-Brick

2

NEW Product

RFB300-24S28-R5TY

Part Number System with Options

Output Voltage

12 = 7.2 Vdc to 13.2 Vdc

28 = 16.8 Vdc to 29.4 Vdc

Remote ON/OFF Polarity

R = Negative Logic Option

Blank = Positive Logic Option

5 = 0.50 in (12.70 mm)

4 = 0.40 in (10.16 mm)

Threaded Inserts

T = Threaded Inserts

Blank = Clearance Inserts

RFB300/350 Series

24 Vin and 48 Vin single output

OUTPUT

INPUT

OUTPUT

OUTPUT

OUTPUT

EFFICIENCY

REGULATION

MODEL

POWER

VOLTAGE

VOLTAGE

CURRENT

CURRENT

(TYP.)

LINE

LOAD

NUMBER

(18,19)

(MAX.)

(MIN.)

(MAX.)

300 W

18-36 Vdc

7.2-13.2 Vdc

0 A

25 A

86%

±0.15%

±0.2%

RFB300-24S12Y

308 W

18-36 Vdc

16.8-29.4 Vdc

0 A

11 A

90%

±0.15%

±0.2%

RFB300-24S28Y

308 W

36-75 Vdc

16.8-29.4 Vdc

0 A

11 A

91%

±0.15%

±0.2%

RFB300-48S28Y

350 W

36-75 Vdc

7.2-13.2 Vdc

0 A

29.2 A

88%

±0.15%

±0.2%

350 W

36-75 Vdc

16.8-29.4 Vdc

0 A

12.5 A

91%

±0.15%

±0.2%

RFB350-48S28Y

Y = Non Pb-free (RoHS 5/6 compliant)

Number of Outputs

S = Single

Input Voltage

24 = 18 Vdc to 36 Vdc

48 = 36 Vdc to 75 Vdc

Rated Output Current

300 = 300/308 W

350 = 350 W

Product Family

RFB = Half-Brick