RFB35048S28R5TJ - Artesyn Technologies, Inc.

File Name: rfb300_350.pdf Rev: 03 Feb 2006

2YEAR WARRANTY

All specifications are typical at nominal input, full load at 25 °C unless otherwise stated.

External output capacitance required (See Note 4) SPECIFICATIONS

RFB300/350 series is a high efficiency, enclosed, isolated dc-dc converter series in

an industry standard half-brick package that provides up to 350 W of output power.

The series delivers very high usable output power for today’s high performance RF

power amplifier and similar applications. The four models in the series feature an

input voltage range of 18 Vdc to 36 Vdc and 36 Vdc to 75 Vdc and an output

voltage of 12 V and 28 V. The output voltage is adjustable from 7.2 Vdc to 13.2 Vdc

or 16.8 Vdc to 29.4 Vdc (not to exceed 308 W for the RFB300 [300 W for the

RFB300-24S12] and 350 W for the RFB350). The series also has a remote ON/OFF

capability. Overcurrent, overvoltage and overtemperature protection features are

included as standard. Negative logic remote ON/OFF and other options are also

available. Full international safety approval including EN/IEC60950 VDE and

UL/cUL60950 reduces compliance costs and time to market.

•High efficiency topology

•Wide temperature range, -40 °C to +100 °C @ full power

•High power density (160 W/in3in 0.4” tall version)

•Input voltage range: 18-36 Vdc or 36-75 Vdc

•Output voltage range: 7.2-13.2 Vdc or 16.8-29.4 Vdc

•Remote ON/OFF

•Operational insulation system

•Available RoHS compliant

RFB300/350 Series

24 Vin and 48 Vin single output

International Safety Standard Approvals

VDE0805/EN60950/IEC950 File No. 10401-3336-0198

Licence No. 40005395

UL/cUL CAN/CSA 22.2 No. 60950

UL 60950 File No. E135734

ABSOLUTE MAXIMUM RATINGS

Input voltage - peak 24 Vin -0.5-50 Vdc

(100 ms max., 48 Vin -0.5-100 Vdc

1.0 % duty cycle max.)

Input voltage continuous 24 Vin -0.5-40 Vdc

48 Vin -0.5-80 Vdc

Adjust pin voltage (with -0.5-12 Vdc

respect to -sense pin)

OUTPUT SPECIFICATIONS

Voltage adjustability 12 Vout 7.2-13.2 Vdc

28 Vout 16.8-29.4 Vdc

Min./max. load 12 Vout 0/25 A, 0/29.2 A

28 Vout 0/11 A, 0/12.5 A

Output load capacitance 12 Vout 470 µF to 4,700 µF

(See Note 10) 28 Vout 330 µF to 3,300 µF

Rise time (See Note 12) 5ms typ.

INPUT SPECIFICATIONS

Input current 24 Vin 23.8 A max. @ lo max.

(See Note 3) 48 Vin RFB300 11.2 A max. @ lo max.

48 Vin RFB350 13 A max. @ lo max.

Input reflected ripple 24 Vin 12 mA (pk-pk)

(See Note 4) 48 Vin 12 V model 42 mA (pk-pk)

48 Vin 28 V model 28 mA (pk-pk)

Input capacitance - 24 Vin 39 µF

Internal filter 48 Vin 13 µF

Inrush current (See Note 11) 2 A2s

DC-DC CONVERTERS 300-350 W Half-Brick 1

NEW Product

EMC CHARACTERISTICS

Conducted emissions EN55022 See Application Note 167

Radiated emissions EN55022 See Application Note 167

GENERAL SPECIFICATIONS

Efficiency 24 Vin 12 V model 86%

24 Vin 28 V model 90%

Vin = Vin (nom), 48 Vin 12 V model 88%

Iout (max.) 48 Vin 28 V model 91%

Approvals and VDE IEC60950

standards IECEE CB, UL/cUL60950

Material Flammability UL94V-0

Weight 0.5 inch tall version 110 g (3.88 oz.)

MTBF @ 55 ºC 12 V model

1,900,000 hours min.

Telcordia SR-332 Issue 1 28 V model

2,400,000 hours min.

ENVIRONMENTAL SPECIFICATIONS

Thermal performance Operating baseplate, -40 ºC to +100 ºC

temperature

Non-operating -40 ºC to +100 ºC

RC PIN ELECTRICAL INTERFACE

Open collector compatible (See AN 167 for remote ON/OFF)

RC:

ON voltage (See Note 13) 5 V min.

Open circuit voltage

5V min, 11 V typ

13 V max.

High level leakage current (See Note 14) -25 µA max.

OFF voltage (See Note 15) 1.2 V max.

Low level input current (See Note 16) -250 µA max.

NNootteess

1Measurement 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.

2Di/dt = 1 A/µs; ∆Iout = ±25% Iout (max); Vin = Vnom; Iout = Inom. Tested

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

aluminum electrolytic capacitor across the output.

3External input fusing required. Use a fast acting fuse: 40 A (24 V model),

15 A (48 V, 350 W model).

4Iout = Iout (max) Measured with the input capacitor, Cbypass = 330 µF,

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

>100kHz.

5Signal line assumed <3 m in length.

6This product is only for inclusion by professional installers within other

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

7Negative remote ON/OFF option also available. Add suffix ‘-R’ to part

number, for example see part numbering system.

8With 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.

9With 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.

10 Minimum effective ESR is 1 mΩ. Minimum phase margin is 35º.

11 Measured per ETSI 300 132-2 Section 4.7.2.

12 From 10% to 90% of Vout (nom). Full resistive load. 1 µF ceramic and

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

NNootteess CCoonnttdd..

10 Minimum effective ESR is 1 mΩ. Minimum phase margin is 35º.

11 Measured per ETSI 300 132-2 Section 4.7.2.

12 From 10% to 90% of Vout (nom). Full resistive load. 1 µF ceramic and

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

13 Converter guaranteed ON for positive option.

14 Maximum driver leakage to insure converter is ON.

15 Converter guaranteed OFF for positive option.

16 Driver sink current @ Vrc ≤ 1.2 V.

17 0.40 in height option is not available on the 12 V output model.

18 The’Y’ suffix indicates that these parts are TSE ToHS 5/6 (non-Pb-free)

compliant

19 NOTICE: Some models do not support all options. Please contact your

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

Height Option (17)

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% RFB350-48S12Y(17)

350 W 36-75 Vdc 16.8-29.4 Vdc 0 A 12.5 A 91% ±0.15% ±0.2% RFB350-48S28Y

RoHS Compliance (18)

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

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

DC-DC CONVERTERS 300-350 W Half-Brick 3

NEW Product

File Name: rfb300_350.pdf Rev: 03 Feb 2006

-Out

-Sen

+Out

Vadj

+Sen

+IN

-IN

Case

RC 1 µF

50 V 330 µF

330 µF

Figure 1 - Standard Application - 28 V Models

-Out

-Sen

+Out

Vadj

+Sen

+IN

-IN

Case

RC1 µF

50 V 470 µF

330 µF

Figure 2 - Standard Application - 12 V Models

RFB300/350 Series

24Vin and 48Vin single output

OUTPUT CURRENT MAX. (%)

TEMPERATURE (ºC) BASEPLATE

100

-40 -20 0 20 40 60 80 100

Figure 3 - Derating Curve - All Models Figure 4 - Typical Turn-on Delay and Risetime RFB350-48S28Y

Channel 1: Output Voltage, Channel 2: Input Voltage

0 3 6 9 12

EFFICIENCY (%)

OUTPUT CURRENT (A)

Vin = 48 V

Figure 6 - Typical Efficiency vs. Output Current – RFB300-48S28Y

0 3 6 9 12

EFFICIENCY (%)

OUTPUT CURRENT (A)

Vin = 24 V

Figure 5 - Typical Efficiency vs. Output Current – RFB300-24S28Y

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

DC-DC CONVERTERS 300-350 W Half-Brick 4

NEW Product

File Name: rfb300_350.pdf Rev: 03 Feb 2006

0 5 10 15 20 25 30

PERCENT EFFICIENCY (%)

OUTPUT CURRENT (A)

Vin = 24 V

Figure 9 - Typical Efficiency vs. Output Current – RFB300-24S12Y

RFB300/350 Series

24Vin and 48Vin single output

Figure 10 - RFB350-48S28Y Transient Response

Load 6.25-9.38 A

Figure 11 - RFB350-48S12Y Transient Response

Load 14.5-21.75 A

0 2 4 6 8 10 12 14

EFFICIENCY (%)

OUTPUT CURRENT (A)

Vin = 48 V

Figure 7 - Typical Efficiency vs. Output Current – RFB350-48S28Y

0 6 12 18 24 30

EFFICIENCY (%)

OUTPUT CURRENT (A)

Vin = 48 V

Figure 8 - Typical Efficiency vs. Output Current – RFB350-48S12Y

File Name: rfb300_350.pdf Rev: 03 Feb 2006

Please consult our website for the following items: 4 Application Note www.artesyn.com

2005

The information and specifications contained in this datasheet are believed to be correct at time of publication. However, Artesyn Technologies accepts no responsibility for consequences arising

from printing errors or inaccuracies. The information and specifications contained or described herein are subject to change in any manner at any time without notice. No rights under any patent

accompany the sale of any such product(s) or information contained herein.

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

DC-DC CONVERTERS 300-350 W Half-Brick 5

NEW Product

Figure 12 - Mechanical Drawing, Dimension Options and Pin-Out Table

RFB300/350 Series

24Vin and 48Vin single output

Case

-Vin

+Vin

-Sen

Vadj

2x ø0.081 (2.06)

7x ø0.040 (1.02)

-Vout

+Vout

+Sen

0.23 ±0.02 (5.84 ±0.51)

0.00 (0.00)

1.900 (48.26)

0 (0.00)

2.000 (50.80)

2.27 ±0.02 (57.66 ±0.51)

Case Footprint

2.39 ±0.02

(60.71 ±0.51)

Case Footprint

Height

(See Dimension Option Table Below)

4 x Thru Hole Insert 0.128 (3.25) Clearance

(M3 x 0.5 Threaded Inserts are Available)

0.300 (7.62)

0.700 (17.78)

1.000 (25.40)

1.300 (33.02)

1.700 (43.18)

DIMENSION OPTIONS

OPTION HEIGHT

5 0.50 ±0.02 (12.70 ±0.51)

4 0.40 ±0.02 (10.16 ±0.51)

PIN CONNECTIONS

PIN NUMBER FUNCTION

-Vin Negative Input Terminal

Case

RC ON/OFF Control Terminal

+Vin Positive Input Terminal

+Vout Positive Output Terminal

+Sen Positive Remote Sense

Vadj Output Adjustment Trim Pin

-Sen Negative Remote Sense

-Vout Negative Output Terminal