BCP-5/15-3.3/15-D48N-T-Y

BCP Models

www.murata-ps.com

Dual Output, Mixed Voltage, Isolated 5V & 3.3 V,

"Half-Brick" 75 W DC/DC Converters

FEATURES

PRODUCT OVERVIEW

Independent 5V and 3.3V outputs

Each output fully regulated

No minimum load requirements

Up to 15 Amps per output

As your new, mixed-logic (5V and 3.3V) design

evolves and your current requirements change,

your new DC/DC converter will not. Murata Power

Solutions' BCP-5/15-3.3/15-D24 (18-36V input)

and BCP-5/15-3.3/15-D48 (36-75V input) are fully

isolated DC/DC converters providing both 5V and

3.3V outputs. Housed in standard "half-brick"

packages (2.3" x 2.4" x 0.525"), the BCP’s can

support any combination of 5V and 3.3V loading

up to a combined total of 15 Amps. Both outputs

are fully isolated (1500Vdc) and independently line

( 0.2ꢀ) and load ( 0.5ꢀ and 0.6ꢀ) regulated.

Both BCP models feature input pi ﬁlters, input

undervoltage and overvoltage shutdown, input

reverse-polarity protection, output overvoltage

protection, current limiting, and thermal shutdown.

Each has an on/off control function, and the two

output voltages can be trimmed independently.

BCP Model DC/DC’s deliver low noise

(50mVp-p), high efﬁciency (87ꢀ) and are fully

speciﬁed for –40 to +100°C operation. Utilization of

metal baseplate technology with threaded inserts

permits easy heat-sink attachment and/or pcb

mounting. These devices meet IEC950, UL1950,

EN60950-1 and VDE safety standards, includ-

ing BASIC insulation requirements. CB reports

are available on request. "D48" models are CE

marked (meet the requirements of LVD). Selected

models are available with RoHS-6 hazardous

substance compliance.

75 Watts total output power

Standard "half-brick" package

UL1950, EN60950-1 and VDE safety

approvals (BASIC insulation)

Fully isolated, 1500Vdc guaranteed

18-36V or 36-75V input ranges

CE mark available (75V-input models)

Input under and overvoltage shutdown

Continuous short-circuit protection

Thermal shutdown

SIMPLIFIED SCHEMATIC

+5V OUTPUT

(7)

+INPUT

(4)

SWITCH

CONTROL

5V RETURN (6)

+3.3V OUTPUT

(10)

–INPUT

(1)

3.3V RETURN

(9)

MAG AMP

CONTROLLER

REFERENCE &

ERROR AMP

ON/OFF

CONTROL

(3)

3.3V TRIM

(8)

PWM

CONTROLLER

OPTO

ISOLATION

REFERENCE &

ERROR AMP

5V TRIM

(5)

UV & OV

COMPARATORS

Typical topology is shown

For full details go to

www.murata-ps.com/rohs

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MDC_BCP_75W.B05 Page 1 of 14

BCP Models

Dual Output, Mixed Voltage, Isolated 5V & 3.3 V,

"Half-Brick" 75 W DC/DC Converters



PERFORMANCE SPECIFICATIONS AND ORDERING GUIDE

Output

R/N (mVp-p)

Input

Package



Regulation (Max.)

Efﬁciency

_IOUT

_IIN

VOUT

VIN Nom.

(V)

Range

(V)

(Case/



Typ.

50

Max.

Line

0.2ꢀ

Model Family

(V)

(A)

Load 

0.5ꢀ

(mA)

Min.

Typ.

Pinout)

5

15

100

24

48

18-36

36-75

215/3720

125/1860

84ꢀ

87.2ꢀ

C19, P29

BCP-5/15-3.3/15-D24P-C

BCP-5/15-3.3/15-D48N-C

3.3

5

50

0.6ꢀ

50

0.5ꢀ

84ꢀ

88ꢀ

3.3

50

0.6ꢀ















Typical at T^A= +25°C under nominal line voltage and balanced "full-load" (5V @7.5A, 3.3V @ 7.5A)

conditions unless otherwise noted.

Ripple/Noise (R/N) measured over a 20MHz bandwidth. All models are speciﬁed with 22µF,

low-ESR, input capacitor and 10µF tantalum in parallel with 1µF ceramic output capacitors.

No load to 100% load, other output at no-load.

Nominal line voltage, no-load/5V at full-load condition.

Current from either output at maximum value, or both outputs to a combined total of 15 A.

5V at full-load condition.

Please refer to the Part Number Structure for additional options when ordering.

PART NUMBER STRUCTURE

BCP - 5 / 15 - 3.3 / 15 - D24 N H LX - T - C

Dual Output/

Standard Half-Brick

RoHS Hazardous

Substance Compliance

V1 Nominal Output Voltage: 5V

I¹Maximum Output Current: 15A

Optional Functions—Refer to last page for additional options:

Blank On/Off Control function (positive polarity) pin 3

Special Trim Versions:

BCP-5/15-3.3/15-D48 only

(Quantity order only)

N

On/Off Control function (negative polarity) pin 3

Pin length: 0.110 in. (2.79mm) 0.010, quantity order

Pin length: 0.145 in. (3.68mm) 0.010, quantity order

RoHS-5 Hazardous substance compliance, with lead

RoHS-6 Hazardous substance compliance, no lead

Conformal Coating (special order):

V2 Nominal Output Voltage: 3.3V

I2 Maximum Output Current: 15A

L1

L2

-Y

-C

-H

Optional Functions:

See also last page

Input Voltage Range:

D24 = 18-36 Volts (24V nominal)

D48 = 36-75 Volts (48V nominal)

Blank = no coating, standard

H = coating added, special order

Note: Some model number

combinations may not be available.

Contact Murata Power Solutions.

www.murata-ps.com/support

MDC_BCP_75W.B05 Page 2 of 14

BCP Models

Dual Output, Mixed Voltage, Isolated 5V & 3.3 V,

"Half-Brick" 75 W DC/DC Converters

MECHANICAL SPECIFICATIONS

Optional Heat Sink (Part Number HS-CPLP2)

3.50

(88.9)

0.20

2.30

(58.4)

METAL BASEPLATE

PLASTIC SHELL

2.00

0.75

(5.1)

(50.8)

(19.1)

0.545 (13.84) MAX.

0.525 (13.34) TYP.

0.040 0.002 DIA.

(1.016 0.051)

0.20 MIN

(5.1)

0.20

(5.1)

1.900

(48.3)

1.900

(48.3)

2.30

(58.4)

10

9

1

2

8

0.140 THRU AND COUNTERSINK

90° TO 0.26 (4 PLACES)

2.000 1.400

(50.80) (35.56)

1.600

(40.64) (61.0)

2.40

MATERIAL: BLACK ANODIZED ALUMINUM

1.300

(33.02)

1.000

(25.40)

7

6

5

1.000

(25.40)

3

0.400

(10.16)

0.600

(15.24)

0.47

(11.9)

0.300

(7.62)

0.16

(4.1)

(4) THREADED INSERTS

#M3 THD THRU

4

2.48

(63.0)

0.200

(5.08)

0.30

(7.62)

BOTTOM VIEW

0.20

(5.08)

Optional Heat Sink (Part Number HS-CP)

0.50 (12.70) TYP.

051 (12.95) MAX.

2.30

(58.4)

0.10

(2.5)

1.900

(48.3)

0.20

(5.1)

INPUT/OUTPUT CONNECTIONS

Function

-Input

6

Function

5V Return

+5V Output

3.3V Trim

1

2

3

4

5

Case (Baseplate)

On/Off Control

+Input

7

2.00

(50.8)

2.40

(61.0)

8

9

3.3V Return

5V Trim

10

+3.3V Output

Standard pin length is shown. Please refer to the Part

Number Structure for special order pin lengths.

TOP VIEW

0.20

(5.1)

MATERIAL: BLACK ANODIZED ALUMINUM

4 MOUNTING SCREWS AND 0.009 (0.229)

THICK THERMAL PAD INCLUDED

0.147 DIA. (3.734)

(4 PLACES)

Dimensions are in inches (mm) shown for ref. only.

Third Angle Projection

Tolerances (unless otherwise speciﬁed):

.XX 0.02 (0.5)

.XXX 0.010 (0.25)

Angles 2ꢁ

Components are shown for reference only.

www.murata-ps.com/support

MDC_BCP_75W.B05 Page 3 of 14

BCP Models

Dual Output, Mixed Voltage, Isolated 5V & 3.3 V,

"Half-Brick" 75 W DC/DC Converters

Performance/Functional Speciﬁcations

Typical @ TA = +25°C under nominal line voltage, balanced "full-load" conditions, unless noted. 

Input

Dynamic Characteristics

Input Voltage Range:

D24 Models

D48 Models

Dynamic Load Response:

5V (50-100ꢀ load step to 1ꢀ V^OUT)

3.3V (50-100ꢀ load step to 1ꢀ V^OUT)

18-36 Volts (24V nominal)

36-75 Volts (48V nominal)

450μsec maximum

Overvoltage Shutdown: 

D24 Models

D48 Models

Start-Up Time: 

VIN to VOUT

On/Off to V^OUT

37.5-40.5 Volts (39V typical)

78.8-87.0 Volts (83V typical)

30msec maximum

20msec maximum

Start-Up Threshold: 

D24 Models

D48 Models

Switching Frequency

350kHz ( 35kHz)

15.5-18 Volts (16.5V typical)

33.5-36 Volts (34.4V typical)

Environmental

MTBF

D24 Models

D48 Models

Bellcore, ground ﬁxed, controlled

1.49M hours (case @ 50ꢁC)

1.72M hours (case @ 50ꢁC)

Undervoltage Shutdown: 

D24 Models

D48 Models

14-16 Volts (15.3V typical)

30.5-33.5 Volts (31.8V typical)

Operating Temperature (Ambient):

 Case to Ambient, No Heatsink

(See Derating Curves)

Input Current:

6.8ꢁC/Watt

–40 to +85ꢁC with derating

Normal Operating Conditions

Minimum Input Voltage:

D24 Models

See Ordering Guide

5.02 Amps maximum

2.51 Amps maximum

Case Temperature:

Maximum Allowable

D48 Models

+100ꢁC



Standby Mode:

For Thermal Shutdown

+100ꢁC minimum, +110ꢁC maximum

Off, OV, UV, Thermal Shutdown

17mA typical

Storage Temperature

–40 to +120ꢁC

Input Reﬂected Ripple Current:

Source Impedance <0.1

22μF Low-ESR Capacitor

Physical

Dimensions

2.3"x2.4" x 0.525" (58.4x61x13.3mm)

Pin 2

53mArms, 150mAp-p maximum

Pi (0.47pF - 4.7μH - 3μF)



Case (Baseplate) Connection

Case Material

Baseplate

Input Filter Type

Diallyl phthalate, UL94V-0 rated

Aluminum

Reverse-Polarity Protection: 

D24 Models

D48 Models

1 minute duration, 6A maximum

1 minute duration, 4A maximum

Pin Material

Gold plate over copper alloy

4.2 ounces (118 grams)

On/Off Control: (Pin 3) 

D24 & D48 Models

Weight

On = open or 2.0 - +VIN, IIN = 50μA max.

Off = 0-0.6V, I^IN= 1mA max.

Primary to Secondary Insulation Level Basic

D24N & D48N" Models

On = 0-0.6V, I^IN= 1mA max.

Off = open or 2.0 - +V^IN, IIN = 50μA max.

 Models are speciﬁed at "full load" (5V & 3.3V @ 7.5A), with an external 22µF, low-ESR,

input capacitor and 10µF tantalum in parallel with 1µF ceramic output capacitors.

 See Technical Notes for details.

Output

VOUT Accuracy

5V Output

3.3V Output

 Devices may be ordered with opposite polarity (pin 3 open = off). See Part Number

Sufﬁxes and Technical Notes for additional information.

2ꢀ maximum

 Output noise may be further reduced with the installation of additional external output

capacitors. See Technical Notes.

Minimum Loading Per Speciﬁcation

No load

 These signals must be referenced to the input return pin (–V^IN).

 Demonstrated MTBF available on request.



Ripple/Noise (20MHz BW)

Line/Load Regulation

Efﬁciency

See Ordering Guide

See Ordering Guide and Efﬁciency Curves

10ꢀ independent

Absolute Maximum Ratings

Input Voltage:

Continuous:



Trim Range

D24 Models

D48 Models

40.5 Volts

87 Volts

50 Volts

Isolation Voltage:

Input-to-Output

Input-to-Case

1500Vdc minimum

1000Vdc minimum

Transient (100msec): D24 Models

D48 Models

100 Volts

Output-to-Case

Input Reverse-Polarity Protection  Input Current must be limited. 1 minute

duration. Fusing recommended.

Isolation Capacitance

Isolation Resistance

Current Limit Inception:

470pF

100M

D24 Models

D48 Models

6 Amps

4 Amps



5V @ 98ꢀ VOUT (3.3V no-load)

3.3V @ 98ꢀ VOUT (5V no-load)

16-20 Amps

Output Overvoltage Protection 

3.3V Outputs

5V Outputs

3.8 Volts, latching

6.2 Volts, latching



Short Circuit Current:

Constant current 25A, indeﬁnite

0.02ꢀ per ꢁC

Output Current 

Current limited. Devices can withstand

an indeﬁnite output short circuit.

Temperature Coefﬁcient



Overvoltage Protection:

5V Output

Magnetic feedback, latching

6.8 volts

Storage Temperature

–40 to +120°C

3.3V Output

4.5Volts

Lead Temperature (Soldering, 10 sec.) +300°C

These are stress ratings. Exposure of devices to any of these conditions may adversely

affect long-term reliability. Proper operation under conditions other than those listed in the

Performance/Functional Speciﬁcations Table is not implied, nor recommended.

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MDC_BCP_75W.B05 Page 4 of 14

BCP Models

Dual Output, Mixed Voltage, Isolated 5V & 3.3 V,

"Half-Brick" 75 W DC/DC Converters

Input voltages exceeding the input overvoltage shutdown speciﬁcation

listed in the Performance/Functional Speciﬁcations will cause the device to

shutdown. A built-in hysteresis (2V typical for "D24" models, 4V typical for

"D48" models) will not allow the converter to restart until the input voltage is

sufﬁciently reduced.

T E C H N I C A L N O T E S

5V & 3.3V Outputs/Returns

The BCP Series outputs (pins 7 & 10) and returns (pins 6 & 9) are isolated

from the +V^INand –VIN inputs (pins 4 & 1) via a transformer and opto-coupled

transistors.

Start-Up Time

The +5V Return (pin 6) and +3.3V Return (pin 9) are connected internal

to the DC/DC converter. Though the returns are common within the DC/DC

converter, the regulating control loop for each output is sensed directly at its

respective output and return pins. In order to maintain optimum regulation if

ground plane is not used, it is critical that PC board layouts also return each

output to its corresponding return pin.

The VIN to VOUT start-up time is the interval between the time at which a ramp-

ing input voltage crosses the turn-on threshold point and the fully-loaded

output voltage enters and remains within its speciﬁed accuracy band. Actual

measured times will vary with input source impedance, external input capaci-

tance, and the slew rate and ﬁnal value of the input voltage as it appears to the

converter.

Filtering and Noise Reduction

The On/Off to V^OUTstart-up time assumes the converter has its nominal

input voltage applied but is turned off via the On/Off Control. The speciﬁcation

deﬁnes the interval between the time at which the converter is turned on and

the fully loaded output voltage enters and remains within its speciﬁed accuracy

band.

All BCP DC/DC Converters achieve their rated ripple and noise speciﬁcations

using the external input and output capacitors speciﬁed in the Performance/

Functional Speciﬁcations table. In critical applications, input/output noise may

be further reduced by installing additional external I/O caps. Input capacitors

should be selected for bulk capacitance, low ESR and high rms-ripple-current

ratings. Output capacitors should be selected for low ESR and appropriate

frequency response. All caps should have appropriate voltage ratings and be

mounted as close to the converters as possible.

On/Off Control (Standard feature)

The On/Off Control (pin 3) may be used for remote on/off operation. As shown

in Figure 1A, the control pin is referenced to the –Input (pin 1) and will be

pulled to a high state internally. The standard BCP converter (no sufﬁx) is

designed so that it is enabled when the control pin is left open and disabled

when the control pin is pulled low (to less than +0.6V relative to –Input).

The most effective combination of external I/O capacitors will be a function

of your particular load and layout conditions. Our Applications Engineers will

be pleased to recommend potential solutions and can discuss the possibility of

our modifying a device’s internal ﬁltering to meet your speciﬁc requirements.

Contact our Applications Engineering Group for additional details.

Dynamic control of the on/off function is best accomplished with a mechani-

cal relay or an open-collector/open-drain drive circuit (optically isolated if

appropriate). The drive circuit should be able to sink approximately 1mA for

logic low.

Input Fusing

Certain applications and/or safety agencies may require the installation of fuses

at the inputs of power conversion components. Fuses should also be used if

the possibility of sustained, non-current-limited, input-voltage polarity reversals

exists. For BCP DC/DC Converters, you should use fast-blow type fuses with

values no greater than the following.

The on/off control function is designed such that the converter can be

disabled (pin 3 pulled low for no-sufﬁx models) while input power is ramping

up and then "released" once the input has stabilized.

For BCP converters conﬁgured with the negative-polarity option on the

On/Off Control pin ("N" sufﬁx added to part number), operation is opposite to

that described above. The converter is disabled when the On/Off Control pin is

left open and enabled when pulled low.

V^INRange

"D24" Models

"D48" Models

Fuse Value

6 Amps

4 Amps

Fuses should be installed in the +Input line.

Input Overvoltage/Undervoltage Shutdown and Start-Up Threshold

Under normal start-up conditions, devices will not begin to regulate until the

ramping-up input voltage exceeds the Start-Up Threshold Voltage (35V for

"D48" models). Once operating, devices will not turn off until the input voltage

drops below the Undervoltage Shutdown limit (32V for "D48" models). Subse-

quent re-start will not occur until the input is brought back up to the Start-Up

Threshold. This built-in hysteresis prevents any unstable on/off situations from

occurring at a single voltage.

3.3V

+INPUT

4

3

+INPUT

4

3

100k

21k

ON/OFF

CONTROL

–INPUT

CONTROL

–INPUT

1

Figure 1A. No Sufﬁx

Figure 1B. "N" Sufﬁx

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MDC_BCP_75W.B05 Page 5 of 14

BCP Models

Dual Output, Mixed Voltage, Isolated 5V & 3.3 V,

"Half-Brick" 75 W DC/DC Converters

Output Overvoltage Protection

Input Reverse-Polarity Protection

Each voltage output of the BCP Series converter is independently moni-

tored via an auxiliary winding in the output inductor. If the output voltage

should rise to a level which could be damaging to the load circuitry (see

Performance/Functional Speciﬁcations for limits), the overvoltage circuitry

will power down the PWM controller and latch off the DC/DC converter. The

device must now be restarted by powering cycling V^IN.

Upon applying a reverse-polarity voltage to the DC/DC converter, an internal

diode will be forward biased and draw excessive current from the power

source. Therefore, it is required that the input current be limited be either an

appropriately rated input fuse or a current limited power source.

Heat Sinks for BCP Series

MPS offers two standard heat sinks that can be mounted to the half-brick

package to extend the converter's operating temperature range. Along with the

standard 2.3" x 2.4" x 0.5" (HS-CP) heat sink, DATEL has designed a low-proﬁle

heat sink for height-restricted applications. This new heat sink (HS-CPLP2) is

designed with radiant ﬁns that extend 0.51" beyond either side of the 2.4"

dimension of the BCP package. The convenience of this design is that the ﬁnned

extensions protrude only 0.31" below the top surface of the DC/DC converter,

allowing components with a proﬁle height less than 0.215" to be mounted on

the pc board below the heat sink. Therefore, while the surface area of the low-

proﬁle heat sink measures 2.3" x 3.5", pcb real estate is unaffected.

Current Limiting

When output current demands exceed the maximum output current rating

by 107ꢀ to 133ꢀ, the DC/DC converter will go into a current limiting

mode. In this condition the output voltage decreases proportionately as the

output current increases, thereby maintaining a somewhat constant power

dissipation—referred to as Power Limiting (see Figure 2). As the load

approaches a short circuit, the output current will continue to increase until

it reaches the rated Short Circuit Current limit.

BCP-5/15-3.3/15-D24, D48 Current Limiting Characteristics

For optimum thermal performance in a natural convection application, the

low-proﬁle heat sink should be mounted with the ﬁns vertically oriented. Both

models are shipped with 0.009" sellf-adhesive thermal pad and mounting

screws.

(Nominal V^IN

)

6.00

5.00

4.00

3.00

2.00

1.00

0

5V Output

6

5

4

HS-CPLP2

3.3V Output

3

HS-CP

2

1

0

Output Current, IOUT (Amps)

Figure 2. Current Limiting Characteristics

0

100

200

300

400

500

600

700

AIR VELOCITY (FT./MIN.)

Short Circuit Condition

HS-CP and HS-CPLP2 Heat Sink Performance Vs. Air Flow

(@ 10.5 Watts Power Dissipation)

As described under "Current Limiting," when the BCP Series DC/DC converter

output is subjected to a short circuit condition, the output current will remain at

the Short Circuit Current limit. In this state there is negligible power dissipated

in the load. Therefore, most of the input power is dissipated within the con-

verter, causing the internal temperature to increase. If this condition persists,

Thermal Shutdown will activate and shutdown the DC/DC converter. When the

internal temperature is sufﬁciently decreased, the converter will self-start.

Thermal Shutdown

The BCP Series is equipped with Thermal Shutdown circuitry. If the internal

temperature of the DC/DC converter rises above the designed operating tem-

perature, a precision temperature sensor will power down the unit. When the

internal temperature decreases below the threshold of the temperature sensor

the unit will self-start.

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MDC_BCP_75W.B05 Page 6 of 14

BCP Models

Dual Output, Mixed Voltage, Isolated 5V & 3.3 V,

"Half-Brick" 75 W DC/DC Converters

Output Trimming

Both the 5V and 3.3V outputs of the BCP Series can be independently trimmed

via a trimpot (Figure 3A) or a single ﬁxed resistor as shown (Figures 3B & 3C).

The trimpot can be used to determine the value of a single ﬁxed resistor. A

single ﬁxed resistor can increase or decrease the output voltage depending on

its connection. Fixed resistors should be metal-ﬁlm types with absolute TCR’s

less than 100ppm/°C to ensure stability.

Table 1 shows the typical ﬁxed Trim Resistor values for output voltage

changes of 0 through 10ꢀ. Trim adjustment greater than 10ꢀ can have an

adverse affect on the converter’s performance and is not recommended.

3.3V

Trim Down

3.3V

Trim Up

5V

Trim Down

5V

Trim Up

0%

1%

2%

3%

4%

5%

6%

7%

8%

9%

10%

–

47.81k

22.32k

13.82k

9.57k

7.02k

5.320k

4.10k

3.19k

2.48k

1.92k

27.93k

12.78k

7.73k

5.21k

3.69k

2.68k

1.96k

1.42k

1.00k

0.66k

189.75k

91.06k

58.17k

41.72k

31.85k

25.27k

20.57k

17.05k

14.31k

12.12k

61.68k

28.34k

17.23k

11.68k

8.34k

6.12k

4.53k

3.34k

2.42k

1.68k

10

+3.3V OUTPUT

20kΩ

5-22

TURNS

3.3V TRIM

8

+3.3V

LOAD

1

4

–INPUT

+INPUT

9

7

3.3V RETURN

+5V OUTPUT

5V TRIM

20kΩ

5-22

TURNS

5

6

+5V

LOAD

5V RETURN

Table 1. Percentage of Output Voltage Change vs Trim Resistor Value (Ohms)

The following equations mathematically depict:

Output Voltage for a given Trim Resistor

Figure 3A.Trim Connections Using a Trimpot

A resistor connected from the Trim Pin (pin 5 for 5V trim, pin 8 for 3.3V trim)

to the appropriate Return (pin 6 for 5V trim, pin 9 for 3.3V trim) will increase

the output voltage.

Trim Resistor for a given Output Voltage

5 Volt Trim Up

10

1

+3.3V OUTPUT

VO = 5.0 +

RT_UP(kW) =

–4.99

0.30R^T_UP(kW) + 1.5

(0.3V^O) – 1.50

8

3.3V TRIM

+3.3V

LOAD

+3.3V

TRIM

UP

5 Volt Trim Down

1

4

–INPUT

+INPUT

1.14

1

1.14

+1

9

7

5

–4.99

R^T

(kW) =

VO = 1.25

DOWN

3.3V RETURN

0.38+

–0.38

R^T_DOWN(kW) + 4.99

(0.8VO) – 1

+5V OUTPUT

5V TRIM

3.3 Volt Trim Up

+5V

LOAD

+5V

TRIM

UP

1

RT (kW) =

–2.37

–1.23

VO = 3.30 +

UP

R^T(kW) + 2.37

V^O– 3.3

UP

6

5V RETURN

3.3 Volt Trim Down

1

2.07

RT _DOWN(kW) =

–2.37

+1

2.07

VO

1.23

Figure 3B. Increase Output Voltage Trim Connections Using a Fixed Resistor

V^O= 1.23

1

1.23 +

–1

R^T_DOWN(kW)+ 2.37

A single resistor connected from the Trim Pin (pin 5 for 5V trim, pin 8 for

3.3V trim) to its appropriate +Output (pin 7 for 5V trim, pin 10 for 3.3V trim) will

decrease the output voltage.

For Model BCP-5/15-3.3/15-D48-T only (special order only)

5 Volt Trim Up

5 Volt Trim Down

(5.76 – V^O) x 3.3

(V^O– 4.42) x 4.3

RT_DOWN(k7) =

RT_UP(k7) =

VO – 5

5 – VO

10

+3.3V OUTPUT

3.3 Volt Trim Up

3.3 Volt Trim Down

(V^O– 2.89) x 0.66

3.3V TRIM

+3.3V

8

9

7

1

4

LOAD

TRIM

DOWN

(5.825 – V^O) x 0.33

VO – 3.3

–INPUT

+INPUT

RT_UP(k7) =

RT_DOWN(k7) =

3.3 – VO

3.3V RETURN

Note: Resistor values are in k. Accuracy of adjustment is subject to

tolerances of resistor values and factory-adjusted output accuracy.

V^O= desired output voltage.

+5V OUTPUT

5V TRIM

+5V

LOAD

+5V

TRIM

DOWN

5

6

Case Connection

BCP DC/DC's do not have their metal baseplate connected to one of the input

pins. The "uncommitted" baseplate is connected to pin 2 which, depending

upon your system conﬁguration, should be connected to either +Input (pin 4),

–Input (pin 1), Output Returns (pins 6 & 9), or earth ground.

5V RETURN

Figure 3C. Decrease Output Voltage Trim Connections Using a Fixed Resistor

www.murata-ps.com/support

MDC_BCP_75W.B05 Page 7 of 14

BCP Models

Dual Output, Mixed Voltage, Isolated 5V & 3.3 V,

"Half-Brick" 75 W DC/DC Converters

Typical Performance Curves

D24 Model

Output Ripple and Noise (PARD)

D48 Model

Output Ripple and Noise (PARD)

(VIN = 48V, 5V@7.5A, 3.3V @ 7.5A, external 10µF || 1µF output capacitors.)

(VIN = 24V, 5V@7.5A, 3.3V @ 7.5A, external 10µF || 1µF output capacitors.)

3.3V Output

Ripple/Noise

20mV/div

3.3V Output

Ripple/Noise

20mV/div

5V Output

Ripple/Noise

20mV/div

5V Output

Ripple/Noise

20mV/div

1µsec/div

5V Output Full-Load to Half-Load Transient Response

(VIN = 48V, 3.3V@ 0A, external 10µF || 1µF output capacitors.)

5V Output Full-Load to Half-Load Transient Response

(VIN = 24V, 3.3V@ 0A, external 10µF || 1µF output capacitors.)

5V Output

100mV/div

5V Output

100mV/div

15A

Output

Current

5A/div

Output

Current

5A/div

7.5A

100µsec/div

5V Output Half-Load to Full-Load Transient Response

(VIN = 48V, 3.3V@ 0A, external 10µF || 1µF output capacitors.)

5V Output Half-Load to Full-Load Transient Response

(VIN = 24V, 3.3V@ 0A, external 10µF || 1µF output capacitors.)

5V Output

100mV/div

5V Output

100mV/div

15A

Output

Current

5A/div

Output

Current

5A/div

7.5A

100µsec/div

www.murata-ps.com/support

MDC_BCP_75W.B05 Page 8 of 14

BCP Models

Dual Output, Mixed Voltage, Isolated 5V & 3.3 V,

Typical Performance Curves

"Half-Brick" 75 W DC/DC Converters

D24 Model

3.3V Output Full-Load to Half-Load Transient Response

(VIN = 24V, 5V@ 0A, external 10µF || 1µF output capacitors.)

D48 Model

3.3V Output Full-Load to Half-Load Transient Response

(VIN = 48V, 5V@ 0A, external 10µF || 1µF output capacitors.)

3.3V Output

100mV/div

3.3V Output

100mV/div

15A

Output

Current

5A/div

Output

Current

5A/div

7.5A

100µsec/div

3.3V Output Half-Load to Full-Load Transient Response

(VIN = 24V, 5V@ 0A, external 10µF || 1µF output capacitors.)

3.3V Output Half-Load to Full-Load Transient Response

(VIN = 48V, 5V@ 0A, external 10µF || 1µF output capacitors.)

3.3V Output

200mV/div

3.3V Output

200mV/div

15A

Output

Current

5A/div

Output

Current

5A/div

7.5A

100µsec/div

Input Ripple Current

(VIN = 24V, 5V @ 15A, 3.3V@ 0A, external 22µF low-ESR input capacitor.)

Input Ripple Current

(VIN = 48V, 5V @ 15A, 3.3V@ 0A, external 22µF low-ESR input capacitor.)

50mA/div

1µsec/div

www.murata-ps.com/support

MDC_BCP_75W.B05 Page 9 of 14

BCP Models

Dual Output, Mixed Voltage, Isolated 5V & 3.3 V,

Typical Performance Curves

"Half-Brick" 75 W DC/DC Converters

D24 Model

D48 Model

Input Ripple Current

(VIN = 24V, 5V @ 0A, 3.3V @ 15A, external 22µF low-ESR input capacitor.)

Input Ripple Current

(VIN = 48V, 5V @ 0A, 3.3V @ 15A, external 22µF low-ESR input capacitor.)

50mA/div

1µsec/div

Start-Up from Remote On/Off Control

(VIN = 24V, 5V@ 7.5A, 3.3V @ 7.5A, external 10µF || 1µF output capacitors.)

Start-Up from Remote On/Off Control

(VIN = 48V, 5V@ 7.5A, 3.3V @ 7.5A, external 10µF || 1µF output capacitors.)

Remote

On/Off

(Pin 3)

2V/div

Remote

On/Off

(Pin 3)

2V/div

3.3V

Output

2V/div

3.3V

Output

2V/div

5V

Output

2V/div

5V

Output

2V/div

4msec/div

Start-Up from VIN

(VIN = 24V, 5V@ 7.5A, 3.3V @ 7.5A, external 10µF || 1µF output capacitors.)

Start-Up from VIN

(VIN = 48V, 5V@ 7.5A, 3.3V @ 7.5A, external 10µF || 1µF output capacitors.)

V

IN

V

IN

10V/div

20V/div

3.3V

Output

2V/div

3.3V

Output

2V/div

5V

Output

2V/div

5V

Output

2V/div

4msec/div

www.murata-ps.com/support

MDC_BCP_75W.B05 Page 10 of 14

BCP Models

Dual Output, Mixed Voltage, Isolated 5V & 3.3 V,

"Half-Brick" 75 W DC/DC Converters

Typical Performance Curves

D24 Model

D48 Model

Output Power vs. Ambient Temperature

(Without heat sink, 5V Output, 3.3V @ 0A.)

80

70

60

50

40

30

20

10

0

80

70

60

50

40

30

20

10

0

Natural Convection Cooling

150 Linear Feet Per Minute

300 Linear Feet Per Minute

Natural Convection Cooling

150 Linear Feet Per Minute

300 Linear Feet Per Minute

–40

–10

0

10

20

30

40

50

60

70

80

90

100

–40

–10

0

10

20

30

40

50

60

70

80

90

100

Ambient Temperature (°C)

Output Power vs. Ambient Temperature

(With HS-CP heat sink, 5V Output, 3.3V @ 0A.)

80

70

60

50

40

30

20

10

0

80

70

60

50

40

30

20

10

0

Natural Convection Cooling

150 Linear Feet Per Minute

300 Linear Feet Per Minute

Natural Convection Cooling

150 Linear Feet Per Minute

300 Linear Feet Per Minute

–40

0

35

40

45

50

55

60

65

70

75

80

85

90

95

100

–40

0

35

40

45

50

55

60

65

70

75

80

85

90

95

100

Ambient Temperature (°C)

Output Power vs. Ambient Temperature

(Without heat sink, 3.3V Output, 5V @ 0A.)

50

40

30

20

10

0

50

40

30

20

10

0

Natural Convection Cooling

150 Linear Feet Per Minute

300 Linear Feet Per Minute

Natural Convection Cooling

150 Linear Feet Per Minute

300 Linear Feet Per Minute

–40

–10

0

10

20

30

40

50

60

70

80

90

100

–40

–10

0

10

20

30

40

50

60

70

80

90

100

Ambient Temperature (°C)

www.murata-ps.com/support

MDC_BCP_75W.B05 Page 11 of 14

BCP Models

Dual Output, Mixed Voltage, Isolated 5V & 3.3 V,

"Half-Brick" 75 W DC/DC Converters

Typical Performance Curves

D24 Model

D48 Model

Output Power vs. Ambient Temperature

(With HS-CP heat sink, 3.3V Output, 5V @ 0A.)

Output Power vs. Ambient Temperature

(With HS-CP heat sink, 3.3V Output, 5V @ 0A.)

50

40

30

20

10

0

50

40

30

20

10

0

Natural Convection Cooling

150 Linear Feet Per Minute

300 Linear Feet Per Minute

Natural Convection Cooling

150 Linear Feet Per Minute

300 Linear Feet Per Minute

–40

0

35

40

45

50

55

60

65

70

75

80

85

90

95

100

–40

0

35

40

45

50

55

60

65

70

75

80

85

90

95

100

Ambient Temperature (°C)

5V Efficiency vs. Load

(+3.3V Output @ 0 Amps.)

5V Efficiency vs. Load

(+3.3V Output @ 0 Amps)

90

88

86

84

82

80

78

76

74

72

70

68

90

88

86

84

82

80

78

76

74

72

70

68

V

IN = 75V

VIN = 30V

V

IN = 60V

V

IN = 24V

V

IN = 48V

V

IN = 18V

V

IN = 36V

V

IN = 36V

1.875

3.75

5.625

7.5

9.375

11.25

13.125

15

1.875

3.75

5.625

7.5

9.375

11.25

13.125

15

+5V Output Current (Amps)

3.3V Efficiency vs. Load

(+5V Output @ 0 Amps.)

3.3V Efficiency vs. Load

(+5V Output @ 0 Amps.)

75.0

72.5

70.0

67.5

65.0

62.5

60.0

57.5

55.0

52.5

50.0

78

76

74

72

70

68

66

64

62

60

58

56

54

V

IN = 60V

V

IN = 18V

V

IN = 48V

V

IN = 24V

V

IN = 36V

V

IN = 30V

V

IN = 75V

V

IN = 36V

1.875

3.75

5.625

7.5

9.375

11.25

13.125

15

1.875

3.75

5.625

7.5

9.375

11.25

13.125

15

+3.3V Output Current (Amps)

www.murata-ps.com/support

MDC_BCP_75W.B05 Page 12 of 14

BCP Models

Dual Output, Mixed Voltage, Isolated 5V & 3.3 V,

"Half-Brick" 75 W DC/DC Converters

Typical Performance Curves

D24 Model

D48 Model

Overall Efficiency vs. Line and Load

90

88

86

84

82

80

78

76

74

72

70

90

88

86

84

82

80

78

76

74

72

70

+3.3V @ 0A and +5V @15A

+3.3V @ 3.75A and +5V @11.25A

+3.3V @ 7.5A and +5V @7.5A

+3.3V @ 15A and +5V @0A

+3.3V @ 3.75A and +5V @11.25A

+3.3V @ 7.5A and +5V @7.5A

+3.3V @ 15A and +5V @0A

36

40.4

44.7

49

53.3

57.7

62

66.3

70.7

75

36

40.4

44.7

49

53.3

57.7

62

66.3

70.7

75

Input Voltage (Volts)

Output Ripple and Noise (PARD) vs. Input Voltage

(One output @ 15A, other output @ 0A,

PARD measured on loaded output, 20MHz bandwidth.)

Output Ripple and Noise (PARD) vs. Input Voltage

(One output @ 15A, other output @ 0A,

PARD measured on loaded output, 20MHz bandwidth.)

70

60

55

50

45

40

35

30

25

20

15

10

60

50

40

30

20

10

PARD 3.3V Output

PARD 5V Output

Ripple 3.3V Output

Ripple 5V Output

18

20.57

23.14

25.71

28.29

30.86

33.43

36

35

40.71

46.43

52.14

57.86

63.57

69.29

75

Input Voltage (Volts)

www.murata-ps.com/support

MDC_BCP_75W.B05 Page 13 of 14

BCP Models

Dual Output, Mixed Voltage, Isolated 5V & 3.3 V,

"Half-Brick" 75 W DC/DC Converters

Adaptations

Options and Adaptations

There are various additional conﬁgurations available on BCP 75W DC/DC Dual

Half-Bricks. Because designating each with a standard part-number sufﬁx is not

always feasable, MPS assigns a 5-digit "adaptation code" after the part-number

sufﬁxes. Once a conﬁguration has been requested by a customer and created

by MPS, the resulting product is available to any customer as a "standard"

off-the-shelf product. Contact MPS directly if you are interested in your own

set of options/adaptations. Our policy for minimum order quantities may apply.

Consequently, the following products are offered for sale:

Optional Functions

The BCP 75W DC/DC Dual Half-Bricks offer various electrical and mechani-

cal options. Per the Ordering Guide on page 2, the trailing input voltage range

(D24 or D48) in each part number pertains to the base part number. Part-

number sufﬁxes are added after the "input range," indicating the selection of

standard options. The resulting part number is a "standard product" and is

available to any customer desiring that particular combination of options, as

described below.

BCP-5/15-3.3/15-D48-30752

BCP-5/15-3.3/15-D48-30752-Y (RoHS-5)

Sufﬁx

Blank

Description

On/Off Control function with positive polarity on pin 3 and independ-

ent trim function on either output (5V trim on pin 5 and 3.3V trim on

pin 8). The pin length remains at 0.2 inches (5.08 mm).

Standard product, 48V^IN, 5V/15A and 3.3V/15A Outputs with positive On/Off

logic and modiﬁed V^OUTTrim functions (pin 5 and 8 positions) to be compatible

with Power-One's HBD-series. Adapted low proﬁle packaging of 0.5 inches

(12.7 mm) and with trimmed pin length to 0.15 inches (3.8 mm).

N

On/Off Control function with negative polarity on pin 3.

L1

Trim the pin length to 0.110 0.010 inches (2.79 0.25mm). This

option requires a 100-piece minimum order quantity.

RoHS-5 compliance refers to the exclusion of the six hazardous substances

in the RoHS speciﬁcation with the excepion of lead. MPS' RoHS-5 products use

all the conforming RoHS materials, however our solders are reduced lead.

L2

Trim the pin length to 0.145 0.010 inches (3.68 0.25mm). This

option requires a 100-piece minimum order quantity.

-Y

-H

RoHS-5 hazardous substance compliance with lead exception

Conformal Coating (special order):

BCP-5/15-3.3/15-D48-T special trim version (quantity order only).

BCP-5/15-3.3/15-D48THL2-Y

Blank = no coating, standard

H = coating added, special order

Positive On/Off polarity, special trim, conformal coating added, 3.68mm pin

length and RoHS-5 hazardous substance compliance (with lead).

-T

-C

Special trim versions (quantity order only)

RoHS-6 hazardous substance full compliance, no lead.

This product is subject to the following operating requirements

and the Life and Safety Critical Application Sales Policy:

Refer to: http://www.murata-ps.com/requirements/

Murata Power Solutions, Inc.

11 Cabot Boulevard, Mansﬁeld, MA 02048-1151 U.S.A.

ISO 9001 and 14001 REGISTERED

06/02/08

Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other

technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply

the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Speciﬁcations are subject to change without

notice.

www.murata-ps.com/support

MDC_BCP_75W.B05 Page 14 of 14


型号：	BCP-5/15-3.3/15-D48N-T-Y
厂家：	muRata
描述：	DC-DC Regulated Power Supply Module, 2 Output, Hybrid, HALF BRICK PACKAGE-10
文件：	总14页 (文件大小：396K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

BCP-5/15-3.3/15-D48N-T-Y [MURATA]

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BCP-5/15-3.3/15-D48NL1-Y

BCP-5/15-3.3/15-D48NL2

BCP-5/15-3.3/15-D48NL2-C

BCP-5/15-3.3/15-D48NL2-Y

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