www.murata-ps.com
BMP Models
5V and 3.3V, 2" x 3" Watt, Dual Output DC/DC Converters
FEATURES
Independent 5V @ 4.7A and 3.3V @ 3.5A
Outputs
output fully regulated
Each
Watts total output power
35
Standard 2" x 3" package
UL1950 and EN60950-1 safety approvals
(BASIC insulation, -D48 model)
isolated, 1500Vdc guaranteed
Fully
18-36V or 36-75V input ranges
mark available (75V-input models)
trim and on/off control
VOUT
I/O protected
Fully
Thermal shutdown
Typical unit
OBSOLETE PRODUCT
PRODUCT OVERVIEW
For your moderate-power mixed-logic designs,
DATEL’s BMP-5/5-3.3/4-D24 (18-36V input) and
BMP-5/5-3.3/4-D48 (36-75V input) are fully iso-
lated DC/DC converters providing both 5V and 3.3V
outputs. Housed in DATEL’s standard 2" x 3" x 0.5"
metal packages, these BMP duals can simultane-
ously source up to 4.7 Amps from their 5V outputs
and up to 3.5 Amps from their 3.3V outputs.
Both outputs are fully isolated (1500Vdc) and
independently line (±1.0%) and load (±1.0%)
regulated. Both models feature input pi filters, input
overvoltage shutdown, input reverse polarity pro-
tection, output overvoltage protection, output cur-
rent limiting, and thermal shutdown. Both outputs
are controlled via the On/Off Control function (pin
5). The 5 Volt output can be adjusted ±5%.
BMP Model DC/DC’s deliver high efficiency
(82%) and are fully specified for –40 to +100°C
operation. Their corrosion-resistant metal cases
have non-conductive baseplates and threaded
inserts for easy heat-sink attachment and/or PCB
mounting. These devices satisfy IEC950, UL1950
and EN60950 safety requirements for BASIC insula-
tion. CE marking is available for "D48" models.
SIMPLIFIED SCHEMATIC
+V
IN
+5V OUTPUT
COMMON
–
V
IN
REFERENCE &
ERROR
AMPLIFIER
+3.3V OUTPUT
ON/OFF
CONTROL
PWM
CONTROLLER
ISOLATION
PWM
CONTROLLER
REFERENCE &
ERROR
AMPLIFIER
Typical topology is shown.
TRIM
CASE
Figure 1. Simplified Schematic
For full details go to
www.murata-ps.com/rohs
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MDC_BMP-5.5.C01
Page 1 of 5
BMP Models
5V and 3.3V, 2" x 3" Watt, Dual Output DC/DC Converters
Performance Specifi cations and Ordering Guide
➀
I
OUT
➁
V
OUT
R/N (mVp-p)
➂
Model
(Max.)
V
A
Typ.
Max.
5
4.7
100
120
BMP-5/5-3.3/4-D24
3.3
3.5
100
120
5
4.7
100
120
BMP-5/5-3.3/4-D48
3.3
3.5
100
120
Regulation
V
IN
(Nom.)
(Max.)
V
Line
Load
➃
±1%
±1%
24
±1%
±1%
±1%
±1%
48
±1%
±1%
Range
V
18-36
36-75
Iin
➄
mA
35/1870
35/923
Efficiency
Min.
79%
80%
Typ.
81%
C11
82%
P44
Package
Case
Pinout
➀
Typical at TA = +25°C under nominal line voltage and "full-load" conditions.
➁
Any combination of 5V/3.3V rated IOUT current, not to exceed 35 Watts of output power. (See derating graphs.)
➂
Ripple/Noise (R/N) measured over a 20MHz bandwidth. All models are specified with no output capacitors.
➃
Tested from 10% load to 100% load (other output at fi xed load).
➄
Nominal line voltage, no load/balanced full-power condition.
PART NUMBER STRUCTURE
BMP
-
5
/
5
-
3.3
/
4
-
D48
-
C
Dual Output/
Mixed-Voltage Series
V
1
Nominal Output
Voltage: 5 Volts
I
1
Maximum Rated Output
Current: 4.7 Amps
V
2
Nominal Output
Voltage: 3.3 Volts
RoHS-6 Hazardous
Materials Compliance
Input Voltage Range:
D24 = 18-36 Volts (24V nominal)
D48 = 36-75 Volts (48V nominal)
I
2
Maximum Output
Current: 3.5 Amps
Note:
Some model number combinations may not be
available. Contact Murata Power Solutions for
ordering assistance.
MECHANICAL SPECIFICATIONS
3.04
(77.22)
METAL
CASE
INSULATED
BASE
0.040 ±0.002 DIA.
(1.016 ±0.051)
2.500
(63.50)
0.27
(6.86)
1.200
(30.48)
2.00
(50.80)
Optional Heat Sink
(Part Number HS-23-C)
3.00
(76.20)
0.20
(5.08)
2.600
(66.04)
0.40
(10.16)
0.55
(13.97)
0.20 MIN
(5.08)
Case C11
0.42
(10.67)
1
6
2
1.200
(30.48)
7
1.600
2.04
(40.64)
4 EQ. SP. @ (51.82)
0.400 (10.16)
0.10
(2.54)
0.50
(12.70)
3
(4) THREADED INSERTS
#4-40 THD THRU
8
TOP VIEW
4
0.120 DIA. (3.048)
(4 PLACES)
9
10
BOTTOM VIEW
5
0.22
(5.59)
2.600
(66.04)
0.22
(5.59)
MATERIAL: BLACK ANODIZED ALUMINUM
4 MOUNTING SCREWS AND 0.009 (0.229) THERMAL PAD INCLUDED
Dimensions are in inches (mm) shown for ref. only.
Third Angle Projection
INPUT/OUTPUT CONNECTIONS
Pin
1
2
3
Function P44
No Pin
–Input
+Input
Case
On/Off Control
Pin
6
7
8
9
10
Function P44
No Pin
+3.3V Output
Output Return
+5V Output
Trim
Tolerances (unless otherwise specified):
.XX ± 0.02 (0.5)
.XXX ± 0.010 (0.25)
Angles ± 2˚
Components are shown for reference only.
4
5
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MDC_BMP-5.5.C01
Page 2 of 5
BMP Models
5V and 3.3V, 2" x 3" Watt, Dual Output DC/DC Converters
Performance/Functional Specifications
Typical @ TA = +25°C under nominal line voltage, balanced "full-load" conditions, unless noted.
➀
It
Environmental, continued
Operating Temperature (Ambient):
➁
Without Derating:
With Derating
Case Temperature:
Maximum Operational
For Thermal Shutdown
Storage Temperature:
Dimensions
Shielding
Case Connection
Case Material
No heat sink
–40 to +50°C
To +100°C (See Derating Curves)
+100°C
+95°C minimum, +105°C maximum
–40 to +120°C
Input
Input Voltage Range:
D24 Models
D48 Models
Overvoltage Shutdown:
D24 Models
D48 Models
Input Current:
Normal Operating Conditions
Standby Mode:
Off, OV, Thermal Shutdown
Input Reflected Ripple Current:
Source Impedance
D24 & D48 Models
Internal Input Filter Type
Reverse-Polarity Protection:
D24 Models
D48 Models
On/Off Control (Pin 5):
➂ ➃ ➅
D24 & D48 Models
18-36 Volts (24V nominal)
36-75 Volts (48V nominal)
36.4-43.6 Volts (40V nominal)
77-85 Volts (83V nominal)
See Ordering Guide
10mA typical
<0.1Ω, no external input filtering
100mAp-p (typical)
Pi (4.5μF - 10μH - 7.5μF)
1 minute duration, 3A maximum
1 minute duration, 2A maximum
On = open or 2.6V to +15V, I
IN
= 1.5mA max.
Off = 0-1.2V, I
IN
= 1.5mA max.
➀
➁
➂
➃
➄
➅
➆
Physical
2.04 x 3.04 x 0.55" (51.8 x 77.2 x 14mm)
5-sided
Pin 4
Aluminum, black anodized finish with
plastic header
Gold-plated copper alloy with nickel underplate
6 ounces (170 grams)
Pin Material
Weight:
Primary to Secondary Insulation Level
D24 Models
Operational
D48 Models
Basic
All models are specified with no external output capacitors.
See Technical Notes/Graphs for details.
Devices may be ordered with On/Off Control function. See Part Number Suffixes and Technical Notes for details.
Applying a voltage to On/Off Control (pin 5) when no input power is applied to the converter may cause perma-
nent damage.
Output noise may be further reduced with the installation of additional external output capacitors.
On/Off control is designed to be driven with open collector or by appropriate voltage levels. Voltages must be
referenced to the input return pin (–Input).
Demonstrated MTBF available on request.
Output
V
OUT
Accuracy
5V Output
3.3V Output
Minimum Loading Per Specification
Ripple/Noise (20MHz BW)
➄
Line/Load Regulation
Efficiency
Trim Range +5V Output
Isolation Voltage:
Input-to-Output
Case-to-Input
Case-to-Output
Isolation Capacitance
Isolation Resistance
Temperature Coefficient
Current Limit Inception:
5V @ 98.5% V
OUT
(3.3V @ 3.5A)
3.3V @ 98.5% V
OUT
(5V @ 4.7A)
Short Circuit Current:
5V Output
3.3V Output
Overvoltage Protection:
5V Output
±1% maximum
±1.5% maximum
10%
See Ordering Guide
See Ordering Guide
See Ordering Guide
±5%
1500Vdc minimum
1000Vdc minimum
1000Vdc mimimum
470pF
100MΩ
±0.02%/per°C
6-8 Amps
5-8 Amps
10 Amps average, continuous
8 Amps average, continuous
Magnetic feedback/transorb
6.8 volts
Absolute Maximum Ratings
Input Voltage:
D24 Models
D48 Models
Input Reverse-Polarity Protection
Output Overvoltage Protection
+5V Outputs
Output Current
42 Volts
88 Volts
Current must be <3A. Brief duration
only. Fusing recommended.
6.8 Volts
Current limited. Maximum current
and short-circuit duration are model
dependent.
–40 to +105°C
Storage Temperature
These are stress ratings. Exposure of devices to greater than any of these conditions may adversely
affect long-term reliability. Proper operation under conditions other than those listed in the Perfor-
mance/Functional Specifications Table is not implied or recommended.
Soldering Guidelines
Murata Power Solutions recommends the specifications below when installing these converters.
These specifications vary depending on the solder type. Exceeding these specifications may cause
damage to the product. Be cautious when there is high atmospheric humidity. We strongly recom-
mend a mild pre-bake (100° C. for 30 minutes). Your production environment may differ; therefore
please thoroughly review these guidelines with your process engineers.
Dynamic Characteristics
Dynamic Load Response:
5V (50-100% load step to 3% VOUT)
300μsec maximum
3.3V (50-100% load step to 3% VOUT) 300μsec maximum
Switching Frequency
MTBF
➆
D24 Models
D48 Models
150kHz (±15kHz)
Wave Solder Operations for through-hole mounted products (THMT)
For Sn/Ag/Cu based solders:
Maximum Preheat Temperature
Maximum Pot Temperature
Maximum Solder Dwell Time
For Sn/Pb based solders:
Maximum Preheat Temperature
Maximum Pot Temperature
Maximum Solder Dwell Time
115° C.
270° C.
7 seconds
105° C.
250° C.
6 seconds
Environmental
Bellcore, ground fixed, full power, +25°C
operating ambient temperature
TBC million hours
TBC million hours
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MDC_BMP-5.5.C01
Page 3 of 5
BMP Models
5V and 3.3V, 2" x 3" Watt, Dual Output DC/DC Converters
Performance/Functional Specifications
On/Off Control (Standard)
10k
3
+10V
+INPUT
The On/Off Control pin (pin 5) may be used for remote on/off operation. As
shown in Figure 6, the control pin has an internal 10kΩ pull-up resistor to
approximately 10V. The converter is designed so that it is enabled when the
control pin is left open (normal mode) and disabled when the control pin is
pulled low (to less than +1.2V relative to –Input, pin 2).
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 obviously be able to sink approximately
1.5mA when activated and withstand more than 10 Volts when deactivated.
Applying an external voltage to pin 5 when no input power is applied to the
converter can cause permanent damage to the converter. The on/off control
function, however, is designed such that the converter can be disabled (pin
5 pulled low) while input power is ramping up and then "released" once the
input has stabilized. Under these circumstances, it takes approximately 30ms
for the output of the fully loaded DC/DC to ramp up and settle to within ±1%
of its fi nal value after the converter has been turned on.
Output Trimming
The total output voltage span of the 5 Volt output, from +5V Output (pin 9)
to Output Return (pin 8) may be trimmed ±5% via a single trimpot or fi xed
resistor. The trimpot should be connected as shown in Figure 3 with its wiper
connected to pin 10 (Trim). A trimpot can also be used to determine the value
of a single fi xed resistor which can be connected between pin 10 (Trim) and
pin 9 (+5V Output) to trim "down" the output voltages, or between pins 10
(Trim) and 8 (Output Return) to trim "up" the output voltages. Fixed resistors
should have absolute TCR's less than 100ppm/°C to ensure stability.
Case Connection
Unlike most other DC/DC converters, BMP DC/DC's do not have their metal
case connected to one of their input pins. The "uncommitted" case is con-
nected to pin 4 which, depending on your system confi guration, should be
connected to either +Input (pin 3) or –Input (pin 2).
3
+INPUT
5
ON/OFF
CONTROL
2
–INPUT
Figure 2. Driving the On/Off Control Pin
7
+3.3V LOAD
OUTPUT
RETURN
TRIM
–INPUT
+5V OUTPUT
8
20k
5-22
Turns
+3.3V OUTPUT
2
+5V LOAD
10
9
Figure 3. +5VOUT Trim Connections Using A Trim Pot
+3.3V OUTPUT
3
+INPUT
7
+3.3V LOAD
OUTPUT
RETURN
TRIM
8
R
TRIM DOWN
2
+5V LOAD
10
–INPUT
+5V OUTPUT
9
R
T
DOWN
(k ) =
2.49(V
O
– 2.53)
5 – V
O
–16.2
Figure 4. +5VOUT Trim Down Connections Using A Fixed Resistor
+3.3V OUTPUT
3
+INPUT
7
+3.3V LOAD
OUTPUT
RETURN
TRIM
8
10
R
TRIM UP
2
+5V LOAD
–INPUT
+5V OUTPUT
9
R
T
UP
(k ) =
6.30
V
O
– 5
–16.2
Figure 5. +5VOUT Trim Up Connections Using A Fixed Resistor
Note: Resistor values are in kΩ. Accuracy of adjustment is subject to toler-
ances of resistors and factory-adjusted output accuracy.
VO = desired output voltage.
www.murata-ps.com/support
MDC_BMP-5.5.C01
Page 4 of 5
BMP Models
5V and 3.3V, 2" x 3" Watt, Dual Output DC/DC Converters
TYPICAL PERFORMANCE CURVES
BMP-5/5-3.3/4-D24 Efficiency vs. Line Voltage @ Full Load
81.2
Output Power vs. Ambient Temperature
D24 and D48 Models
V
IN
= Nominal Without Additional Heat Sink
40
81
80.8
35
80.6
Efficiency (%)
Output Power (Watts)
80.4
80.2
80
79.8
79.6
79.4
79.2
18
22.5
27
Line Voltage (Volts)
BMP-5/5-3.3/4-D48 Efficiency vs. Line Voltage @ Full Load
82.4
82.2
31.5
36
30
25
20
15
Natural Convection Cooling
10
5
0
–40
150lfm Air Flow
300lfm Air Flow
0
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95 100
Ambient Temperature (
˚
C)
D24 and D48 Models
Output Power vs. Ambient Temperature
V
IN
= Nominal With Additional Heat Sink
40
82
35
81.8
Efficiency (%)
30
81.6
81.4
81.2
81
80.8
80.6
36
45.75
55.5
Line Voltage (Volts)
65.25
75
Output Power (Watts)
25
20
15
Natural Convection Cooling
10
5
0
–40
150lfm Air Flow
300lfm Air Flow
0
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95 100
Ambient Temperature (
˚
C)
Murata Power Solutions, Inc.
11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A.
ISO 9001 and 14001 REGISTERED
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. 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.
© 2013 Murata Power Solutions, Inc.
www.murata-ps.com/support
MDC_BMP-5.5.C01
Page 5 of 5
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