BWR-5/3-3.3/4.25-D48A Murata Power Solutions Inc, BWR-5/3-3.3/4.25-D48A Datasheet

DC/DC Converters & Regulators 30W DUAL OUTPUT 48V 5/3.3V 3/4.25A

BWR-5/3-3.3/4.25-D48A

Manufacturer Part Number

BWR-5/3-3.3/4.25-D48A

Description

DC/DC Converters & Regulators 30W DUAL OUTPUT 48V 5/3.3V 3/4.25A

Manufacturer

Murata Power Solutions Inc

Series

BWRr

Datasheet

1.BWR-53-3.34.25-D24A-C.pdf (6 pages)

Specifications of BWR-5/3-3.3/4.25-D48A

Product

Isolated

Output Power

15 W

Input Voltage Range

36 V to 75 V

Input Voltage (nominal)

48 V

Number Of Outputs

Output Voltage (channel 1)

5 V

Output Current (channel 1)

3 A

Output Voltage (channel 2)

3.3 V

Output Current (channel 2)

4.25 A

Isolation Voltage

1.5 KV

Lead Free Status / Rohs Status

Lead free / RoHS Compliant

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FEATURES

Independently regulated 5V/ 3.3V outputs

5V @ 3A/3.3V @ 4.25A simultaneously

delivered

Independent V

Independent On/Off Control pins

88% efﬁciency; 75mV ripple/noise

Input ranges: 10-18V, 18-36V or 36-75V

UL 1950 and EN60950-1 safety approvals

Fully isolated, 1500Vdc guaranteed

Input under and overvoltage shutdown

Independent OVP; short circuit protection

Thermal shutdown

3.3V ON/OFF

5V ON/OFF

CONTROL

INPUT UNDERVOLTAGE

+INPUT

–INPUT

(4)

(3)

AND OVERVOLTAGE

(1)

(2)

www.murata-ps.com/rohs

OUT

COMPARATORS

For full details go to

Trim pins for margining

Typical topology is shown.

PRODUCT OVERVIEW

Murata Power Solutions' BWR series of DC/DC con-

verters now includes two independent converters in

one 2" x 2" package. The BWR-5/3-3.3/4.25 family

provides both 5V at 3 Amps and 3.3V at 4.25 Amps

for a combined output power of 30 Watts from input

ranges of 10V to 18V (-D12A), 18 to 36V (-D24A), or

36 to 75V (-D48A).

to provide ±1% load and ±0.5% line regulation.

Individual trim pins and a negative or positive

on/off control pin allow independent adjustment of

output voltages and any combination of power-on

sequencing between the 5V and 3.3V outputs. A

high efﬁciency of 88% allows full load operation

www.murata-ps.com

Each output is regulated by its own control loop

CONTROLLER

PWM

Figure 1. Simpliﬁed Schematic

CONTROL

SWITCH

Mixed Voltage, 5V and 3.3V, Independent Dual Output

ISOLATION

OPTO

Dual Output BWR Models

Technical enquiries email: sales@murata-ps.com, tel:

REFERENCE &

ERROR AMP

up to +65°C ambient temperature in a still air

environment. Although functionally indepen-

dent, both outputs are driven from synchronized

PWMs to prevent asynchronously generated beat

frequencies.

input Pi ﬁltering, input overvoltage protection,

independent output short circuit and current

limiting protection and independent output

overvoltage protection as well as thermal shut-

down. These devices meet IEC950, UL1950 and

EN6950-1 safety standards. CB reports are avail-

able upon request. "D48A" models are CE marked

(meet LVD requirements).

Housed in a plastic case, all models include

30 Watt DC/DC Converters

MDC_BWR30.B02

+5V OUTPUT

+5V TRIM

+3.3V TRIM

+3.3V OUTPUT

RETURN

(7)

(10)

(5)

(6)

(8)

(9)

+1 508 339 3000

Page 1 of 6

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BWR-5/3-3.3/4.25-D48A Summary of contents

Page 1

... PRODUCT OVERVIEW Murata Power Solutions' BWR series of DC/DC con- verters now includes two independent converters in one 2" x 2" package. The BWR-5/3-3.3/4.25 family provides both Amps and 3.3V at 4.25 Amps for a combined output power of 30 Watts from input ranges of 10V to 18V (-D12A 36V (-D24A 75V (-D48A) ...

Page 2

... BWR-5/3-3.3/4.25-D12A 3.3 4. BWR-5/3-3.3/4.25-D24A 3.3 4. BWR-5/3-3.3/4.25-D48A 3.3 4.25 Typical +25°C under nominal line voltage and "full-load" conditions. A Any combination of 5V/3.3V current, not to exceed the published I Ripple/Noise (R/N) measured over a 20MHz bandwidth with 0.47μF ceramic output capacitors. PART NUMBER STRUCTURE BWR - 5 ...

Page 3

... Demonstrated MTBF available on request. For conditions with less than minimum loading, outputs remain stable. However, regulation performance will degrade. Maximum applied voltage to On/Off pin (N sufﬁx) less than 19.0V. www.murata-ps.com Dual Output BWR Models 30 Watt DC/DC Converters Output (continued) Magnetic feedback, transorb 6.0 Volts 4.1 Volts 1000μ ...

Page 4

... Performance/Functional Speciﬁcations Table is not implied, nor recommended. TECHNICAL NOTES Trimming Output Voltages These BWR converters have a trim capability (pins 3 & 4) that allow users to independently adjust the output voltages ±5%. Adjustments to the output voltages can be accomplished via a trim pot, Figure single ﬁxed resistor as shown in Figures 3 and 4. A single ﬁ ...

Page 5

... OUT D48A Models: Efficiency vs. Line and Load 15.71 16. Dual Output BWR Models 30 Watt DC/DC Converters 5V@3A, 3.3V@2.325A 5V@1.65A, 3.3V@4.25A 5V@3A, 3.3V@0.4A 5V@0.3A, 3.3V@4.25A 24 30 Line Voltage (Volts) 5V@3A, 3.3V@2.325A 5V@0.3A, 3.3V@4.25A 5V@3A, 3.3V@0.4A 5V@1.65A, 3.3V@4.25A 48 60 Line Voltage (Volts) Technical enquiries email: sales@murata-ps.com, tel: MDC_BWR30 ...

Page 6

... Canada: Toronto, Tel: (866) 740-1232, email: toronto@murata-ps.com UK: France: Germany: München, Tel: +49 (0)89-544334-0, email: munich@murata-ps.com Japan: ISO 9001 REGISTERED China: © 2008 Murata Power Solutions, Inc. 04/29/08 www.murata-ps.com Dual Output BWR Models 30 Watt DC/DC Converters Model BWR-5/3-3.3/4.25-D48A-30721 Case C22A I/O Connections Pin Function P60 1 +Input 2 –Input 3 No Pin 4 ...

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