www.murata-ps.com
BMP Models
25-40W, Dual Output, DC/DC Converters
Features
■
■
■
Higher operating temperatures
Fully potted
Designed to meet UL1950 and
EN60950-1 (basic insulation)
mark available (75V-input models)
Fully isolated, 1500Vdc guaranteed
25/30/35/40W output power
Standard pinout! Smaller size!
New 2" x 3" package fits 3" x 3" footprint
±5V, ±12V or ±15V outputs
Four input voltage ranges:
10-36V, 18-36V
18-75V, 36-75V
High efficiencies (to 88%)
Fully I/O protected
V
OUT
trim and on/off control
Modifications and customs for OEM’s
■
■
■
■
■
■
■
■
■
■
■
DATEL’s BMP Models are fully potted, 25-40 Watt, dual-output DC/DC convert-
ers designed to meet UL1950 and EN60950-1 safety standards. The
combination the BMP’s higher efficiencies and thermally conductive potting com-
pound enables these devices to achieve higher operating temperatures
without derating. The 2" x 3" BMP "footprint" conforms to the standard pinout
and pin geometries of most 3" x 3" devices (a 33% space savings) while
delivering 60% more power (40W vs. 25W).
Applicable to a wide range of telecom, computer and other OEM applications,
BMP Model DC/DC’s offer ±5V, ±12V and ±15V outputs. They operate from four
different input voltage ranges with total available output being a function of the
selected range. "Q12" models operate from 10-36V and deliver 25W. "Q48" models
operate from 18-75V and deliver 30W. For "D24" and "D48" models, the input
ranges and output powers are 18-36V at 35W and 36-75V at 40W, respectively.
These devices employ corrosion-resistant metal cases with plastic headers.
Heat-generating transformer cores and power semiconductors are mounted directly
to the cases, which have threaded inserts for optional add-on heat sinks or pcb
mounting. Temperature derating information is provided for operation with and with-
out heat sinks and forced air flow.
All devices feature input pi filters, input overvoltage shutdown, output overvolt-
age protection, output current limiting, and thermal shutdown. UL, CSA, EN and IEC
compliance testing is currently in progress (75V-input devices will be CE marked) as
are full EMI/EMC characterizations. Contact DATEL for the latest available informa-
tion.
+V
IN
+V
OUT
PWM
–
V
IN
COMMON
–
V
IN
–
V
OUT
CASE
REFERENCE &
ERROR
AMPLIFIER
ON/OFF
CONTROL
PWM
CONTROLLER
OPTO
ISOLATION
TRIM
Figure 1. Simplified Schematic
Typical topology is shown
For full details go to
www.murata-ps.com/rohs
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MDC_BMP25-40W.C02
Page 1 of 7
BMP Models
25-40W, Dual Output, DC/DC Converters
Performance Specifications and Ordering Guide
➀
Output
Model
BMP-5/4-Q12
BMP-5/4-D24
BMP-5/4-Q48
BMP-5/4-D48
BMP-12/1.65-Q12
BMP-12/1.65-D24
BMP-12/1.65-Q48
BMP-12/1.65-D48
BMP-15/1.3-Q12
BMP-15/1.3-D24
BMP-15/1.3-Q48
BMP-15/1.3-D48
Input
Regulation (Max.)
Load
➂
Line
±0.5%
±0.5%
±0.5%
±0.5%
±0.5%
±0.5%
±0.5%
±0.5%
±0.5%
±0.5%
±0.5%
±0.5%
±1%
±1%
±1%
±1%
±1%
±1%
±1%
±1%
±1%
±1%
±1%
±1%
V
OUT
(Volts)
±5
±5
±5
±5
±12
±12
±12
±12
±15
±15
±15
±15
I
OUT
(Amps)
±4
±4
±4
±4
±1.65
±1.65
±1.65
±1.65
±1.3
±1.3
±1.3
±1.3
R/N (mVp-p)
➁
Typ.
Max.
60
75
75
75
60
60
75
75
60
60
75
60
120
125
125
125
100
100
120
125
125
125
125
125
V
IN
Nom.
(Volts)
24
24
48
48
24
24
48
48
24
24
48
48
Range
(Volts)
10-36
18-36
18-75
36-75
10-36
18-36
18-75
36-75
10-36
18-36
18-75
36-75
I
IN
➃
(mA)
15/1225
15/1696
25/735
20/980
20/1224
15/1667
15/727
15/948
20/1225
15/1648
25/727
20/934
Efficiency
Min.
Typ.
82%
84%
82%
83%
83%
85%
84%
85%
83%
85%
84%
84%
85%
86%
85%
85%
85%
87%
86%
87%
85%
88%
86%
87%
Package
(Case,
Pinout)
C11, P15
C11, P15
C11, P15
C11, P15
C11, P15
C11, P15
C11, P15
C11, P15
C11, P15
C11, P15
C11, P15
C11, P15
➀
Typical at T
A
= +25°C under nominal line voltage and balanced "full-load" conditions unless otherwise noted.
For BMP devices, "full load" is a function of each device's input voltage range. See Output Power Considerations and Technical Notes for more details.
➁
Ripple/Noise (R/N) measured over a 20MHz bandwidth.
➂
Balanced loads, 10% to 100% load.
➃
Nominal line voltage, no-load/full-load conditions.
PART NUMBER STRUCTURE
OUTPUT POWER CONSIDERATIONS
B MP
-
5
/
4
-
D48
-
C
Output Configuration:
B
= Bipolar
Fully Potted Metal Package
Nominal Output Voltages:
±5, ±12 or ±15 Volts
*
Contact Murata Power Solutions
(Datel) for availability.
RoHS-6 compliant*
Input Voltage Range:
Q12
= 10-36 Volts (24V nominal)
D24
= 18-36 Volts (24V nominal)
Q48
= 18-75 Volts (48V nominal)
D48
= 36-75 Volts (48V nominal)
Maximum Output Current
in Amps from each output
As shown below, BMP Model DC/DC Converters are classified by output
power. For dual-output devices, the total output power from the two outputs
can not exceed the rated power. For example, "Q48" models have a maxi-
mum output power of 30W. Therefore, if the +Output is sourcing 20 Watts,
the –Output is limited to sourcing 10 Watts ensuring the total output power
does not exceed 30 Watts.
Model
Q12
Q48
D24
D48
Maximum Output Power
25 Watts
30 Watts
35 Watts
40 Watts
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MDC_BMP25-40W.C02
Page 2 of 7
BMP Models
25-40W, Dual Output, DC/DC Converters
MECHANICAL SPECIFICATIONS
Optional Heat Sink Kit
(Part Number HS-23 <non-RoHS> or HS-23-C <RoHS>)
3.00
(76.20)
METAL
CASE
INSULATED
BASE
3.04
(77.22)
0.55
(13.97)
0.20 MIN
(5.08)
Case C11
0.040 ±0.002 DIA.
(1.016 ±0.051)
2.500
(63.50)
0.20
(5.08)
2.600
(66.04)
0.40
(10.16)
0.27
(6.86)
1.200
(30.48)
0.42
(10.67)
1
6
2.00
(50.80)
2
1.200
(30.48)
7
1.600
2.04
(40.64)
4 EQ. SP. @ (51.82)
0.400 (10.16)
3
(4) THREADED INSERTS
#4-40 THD THRU
8
TOP VIEW
4
0.120 DIA. (3.048)
(4 PLACES)
9
0.10
(2.54)
5
BOTTOM VIEW
0.22
(5.59)
2.600
(66.04)
DIMENSIONS ARE IN INCHES (MM)
10
0.50
(12.70)
0.22
(5.59)
MATERIAL: BLACK ANODIZED ALUMINUM
4 MOUNTING SCREWS AND 0.009 (0.229) THERMAL PAD INCLUDED
I/O Connections
Pin Function P15
1
No Pin
2
–Input
3
+Input
4
Case
5
On/Off Control*
6
–Output
7
No Pin
8
Common
9
+Output
10
Trim
* See note 4 on next page.
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 ± 2˚
Components are shown for reference only.
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MDC_BMP25-40W.C02
Page 3 of 7
BMP Models
Performance/Functional Specifications
Typical @ T
A
= +25°C under nominal line voltage and "full-load" conditions, unless noted.
➀
➁
25-40W, Dual Output, DC/DC Converters
Absolute Maximum Ratings
Input Voltage:
Q12/D24 Models
Q48/D48 Models
Input Reverse-Polarity Protection
Output Overvoltage Protection
±5V Outputs
±12V Outputs
±15V Outputs
Output Current
44 Volts
88 Volts
Current must be <6A. Brief
duration only. Fusing recommended.
6.8 Volts, limited duration
15 Volts, limited duration
18 Volts, limited duration
Current limited. Max. current and
short-circuit duration are model
dependent.
–40 to +105°C
See soldering guidelines
Input
Input Voltage Range:
Q12 Models
D24 Models
Q48 Models
D48 Models
Input Current
Input Filter Type
➂
Overvoltage Shutdown:
Q12 and D24 Models
Q48 and D48 Models
Reverse-Polarity Protection
On/Off Control
(Pin 5)
➃
V
OUT
Accuracy
(50% load)
Temperature Coefficient
Ripple/Noise
(20MHz BW)
➂
Line/Load Regulation
Efficiency
Isolation Voltage
➄
Isolation Capacitance
Current Limiting
Overvoltage Protection
Transient Response
(50% load step)
Switching Frequency
Operating Temperature
(ambient):
Without Derating
With Derating
Maximum Case Temperature
Storage Temperature
Relative Humidity
Safety
Dimensions
Shielding
Case Connection
Case Material
Flammability Rating
Pin Material
Weight
10-36 Volts (24V nominal)
18-36 Volts (24V nominal)
18-75 Volts (48V nominal)
36-75 Volts (48V nominal)
See Ordering Guide
Pi
40 Volts
80 Volts
Yes (Instantaneous, 6A maximum)
TTL high (or open) = on, low = off
Storage Temperature
Lead Temperature
Output
±1%, maximum
±0.02% per °C
See Ordering Guide
See Ordering Guide
See Ordering Guide
1500Vdc, minimum
620pF
Continuous, auto-recovery
Zener/transorb clamps, magnetic feedback
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 Performance/Functional Specifications Table is not implied.
TECHNICAL NOTES
Floating Outputs
Since these are isolated DC/DC converters, their outputs are "floating." Any
BMP model may be configured to produce an output of 10V, 24V or 30V (for
±
5V,
±
12V or
±
15V models, respectively) by applying the load across the
+Output and –Output (pins 9 and 6), with either output grounded. The Com-
mon (pin 8) should be left open. Minimum 20% loading is recommended
under these conditions. The total output voltage span may be externally
trimmed as described below.
Filtering and Noise Reduction
All BMP 25-40 Watt DC/DC Converters achieve their rated ripple and noise
specifications without the use of external input/output capacitors. In criti-
cal applications, input/output ripple and noise may be further reduced by
installing electrolytic capacitors across the input terminals and/or low-ESR
tantalum or electrolytic capacitors across the output terminals. Output
capacitors should be connected between their respective output pin (pin 6 or
9) and Common (pin 8). See Figure 7. The caps should be located as close
to the converters as possible. Typical values are listed in the below. In many
applications, using values greater than those listed will yield better results.
To Reduce Input Ripple
"Q12, D24" Models
"Q48, D48" Models
To Reduce Output Ripple
±5V Outputs
±12/15V Outputs
Input Fusing
V
IN
Range
Fuse Value
Q12
4A
D24
4A
Q48
3A
D48
2A
47μF, 50V
10μF, 100V
47μF, 10V, Low ESR
22μF, 20V, Low ESR
Dynamic Characteristics
300μsec max. to ±1.5% of final value
125kHz (±10%)
Environmental
–40 to +60°C (Model dependent)
to +90°C (See Derating Curves)
+90°C
–40 to +105°C
To 85°C /85% RH, non-condensing
Physical
Designed to meet UL/cUL/EN/IEC 60950-1
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
UL94V-0
Gold-plated copper alloy with nickel
underplate
6 ounces (170 grams)
➀
These converters require a minimum 10% loading on each output to maintain
specified regulation. Operation under no-load conditions will not damage these devices;
however they may not meet all listed specifications.
➁
"Full load" varies by part number and is determined by the input voltage range as indi
cated by the part number suffix. See Technical Notes and Output Power Considerations.
➂
Application-specific input/output filtering can be recommended or perhaps added inter
nally upon request. Contact DATEL Applications Engineering for details.
➃
Applying a voltage to the On/Off Control pin when no input power is applied to the con
verter can cause permanent damage to the converter.
➄
Listed specification is for input-to-output isolation. Input-to-case and output-to-case
isolation is 1000Vdc, minimum.
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MDC_BMP25-40W.C02
Page 4 of 7
BMP Models
25-40W, Dual Output, DC/DC Converters
Temperature Derating and Electrical Performance Curves
Q12 Models (25 Watts)
25
25
20
20
Output Power (Watts)
Output Power (Watts)
15
15
10
Natural Convection Cooling
150 Linear Feet Per Minute
5
300 Linear Feet Per Minute
10
Natural Convection Cooling
150 Linear Feet Per Minute
5
300 Linear Feet Per Minute
0
–40
0
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
0
–40
0
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
Ambient Temperature (°C)
Ambient Temperature (°C)
Figure 2a. Temperature Derating Without Heat Sink
Figure 2b. Temperature Derating With Heat Sink
Q48 Models (30 Watts)
30
30
25
25
Output Power (Watts)
20
Output Power (Watts)
20
15
Natural Convection Cooling
10
150 Linear Feet Per Minute
5
300 Linear Feet Per Minute
15
Natural Convection Cooling
10
150 Linear Feet Per Minute
300 Linear Feet Per Minute
5
0
–40
0
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
0
–40
0
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
Ambient Temperature (°C)
Ambient Temperature (°C)
Figure 3a. Temperature Derating Without Heat Sink
Figure 3b. Temperature Derating With Heat Sink
D24 Models (35 Watts)
35
35
30
30
Output Power (Watts)
20
Output Power (Watts)
25
25
20
15
Natural Convection Cooling
10
150 Linear Feet Per Minute
300 Linear Feet Per Minute
5
15
Natural Convection Cooling
10
150 Linear Feet Per Minute
300 Linear Feet Per Minute
5
0
–40
0
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
0
–40
0
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
Ambient Temperature (°C)
Ambient Temperature (°C)
Figure 4a. Temperature Derating Without Heat Sink
Figure 4b. Temperature Derating With Heat Sink
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MDC_BMP25-40W.C02
Page 5 of 7
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