BWR-5/6-3.3/7-D48L1-C [MURATA]
DC-DC Regulated Power Supply Module, 2 Output, 33W, Hybrid, ROHS COMPLIANT, METAL, PACKAGE-8/7;
| 型号： | BWR-5/6-3.3/7-D48L1-C |
| 厂家： | 
muRata |
| 描述： | DC-DC Regulated Power Supply Module, 2 Output, 33W, Hybrid, ROHS COMPLIANT, METAL, PACKAGE-8/7 |
| 文件： | 总12页 (文件大小：253K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Dual Output BWR Models
s
Mixed Voltage, 5V AND 3.3V, 2” x 2”
33 Watt DC/DC Converters
Typical units
FEATURES
PRODUCT OVERVIEW
Regulated 3.3V and 5V outputs
For applications requiring 33 watts of power from
5V and 3.3V, DATEL offers a new power sharing
DC/DC converter capable of meeting your output
current requirements. The BWR-5/6-3.3/7-D48
(36-75V input), BWR-5/6-3.3/7-D24 (18-36V
input) and BWR-5/6-3.3/7-D12 (10-18V input)
are fully isolated DC/DC converters capable of
delivering any combination of 5V and 3.3V load-
ing up to a combined total of 33 Watts of output
power.
Housed in a standard 2" x 2" x 0.45" metal
package coated with electrically non-conductive
finish, these converters utilize a shared control-
loop system to assure load regulation of 1ꢀ for
3.3V output and 1.5ꢀ for 5V output. All models
include input Pi filtering, input overvoltage and
undervoltage shutdown circuitry, output overvolt-
age protection, output short-circuit and current
limiting protection, and thermal shutdown.
Each design also provides trim capability and
on/off control function. Fully synchronous output
rectification renders high efficiency and no-load
operation.
BWR power sharing modules offer low ripple
and noise performance, high efficiency (88ꢀ),
1500Vdc of isolation voltage, and are fully
specified for –40 to +100°C operation. These
devices meet IEC950, UL1950 and EN6950 safety
standards, including BASIC insulation require-
ments for “D48” models. CB reports are available
on request. “D48” models are CE marked (meet
LVD requirements).
5V @ 6Amps/3.3V @ 7 Amps capability
33 Watts total output power
No-load operation
Available input voltage ranges:
10-18V, 18-36V or 36-75V
Small 2" x 2" x 0.45" package
UL1950 and EN60950-1 safety approvals
mark available (75V-input models)
Continuous short-circuit protection
Fully isolated, 1500Vdc guaranteed
–40 to +100°C operating temperature
Input under and overvoltage shutdown
Output overvoltage protection
Thermal shutdowns
+5V OUTPUT
(5)
+INPUT
(1)
SWITCH
CONTROL
+3.3V OUTPUT
(7)
–INPUT
(2)
OUTPUT
RETURN
(6)
ON/OFF
CONTROL
(4)
PWM
CONTROLLER
ACTIVE
BLEEDER
OPTO
ISOLATION
REFERENCE &
ERROR AMP
UV & OV
COMPARATORS
THERMAL
SHUTDOWN
TRIM
(8)
Typical topology is shown.
Figure 1. Simplified Schematic
For full details go to
www.murata-ps.com/rohs
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MDC_BWR 33W Models.A05 Page 1 of 12
Dual Output BWR Models
Mixed Voltage, 5V AND 3.3V, 2” x 2”
33 Watt DC/DC Converters
➀
Performance Specifications and Ordering Guide
ORDERING GUIDE SUMMARY
Output
Input
Package
(Case,
Typ. Pinout)
R/N (mVp-p) ➂
Typ. Max.
40 100
Regulation (Max.) ➆
Line Load ➃ No Load ➅ (Volts)
Efficiency
Min.
VOUT
IOUT ➁
VIN Nom. Range
IIN ➄
(mA)
Models
(Volts)
(Amps)
(Volts)
5
3.3
5
6
7
6
7
6
7
1ꢀ
0.5ꢀ
1ꢀ
1.5ꢀ
1ꢀ
2.5ꢀ
1.5ꢀ
2.5ꢀ
1.5ꢀ
2.5ꢀ
1.5ꢀ
BWR-5/6-3.3/7-D12
12
24
48
10-18
70/3308 83ꢀ
50/1615 85ꢀ
86ꢀ C4,P33
95
40
95
40
95
140
100
140
100
140
1.5ꢀ
1ꢀ
BWR-5/6-3.3/7-D24
BWR-5/6-3.3/7-D48
18-36
36-75
88ꢀ C4,P33
88ꢀ C4,P33
3.3
5
0.5ꢀ
1ꢀ
1.5ꢀ
1ꢀ
25/780
85ꢀ
3.3
0.5ꢀ
➄
➅
➆
Nominal line voltage, no load/balanced full-power condition.
Tested from no-load to 100% load (other output at no-load).
Output trim may impact 5V load regulation.
➀
➁
➂
➃
Typical at TA = +25°C under nominal line voltage and balanced “full-load” conditions (5V @ 3.3A/3.3V @ 5A).
Any combination of 5V/3.3V rated IOUT current, not to exceed 33 Watts of output power. (See derating graphs.)
Ripple/Noise (R/N) measured over a 20MHz bandwidth. All models are specified with 1µF ceramic output capacitors.
Tested from 10% load to 100% load (other output at 10% load).
PART NUMBER STRUCTURE
Optional Functions
BWR 33 Watt DC/DC’s are designed with an On/Off Control
function with positive polarity in the pin 4 position.
-
BWR - 5 / 6 - 3.3 / 7 D48 LX
C
-
Dual Output/
Mixed-Voltage Series
RoHS-6 Compliance*
Optional Functions
Input Voltage Range:
D12 = 10-18 Volts (12V nominal)
D24 = 18-36 Volts (24V nominal)
D48 = 36-75 Volts (48V nominal)
L1
L2
Pin length: 0.110 in. (2.79mm) 0.010
Pin length: 0.145 in. (3.68mm) 0.010
V1 Nominal Output Voltage:
5 Volts
Pin length options require a minimum order quantity.
Refer to the last page for additional options.
* Contact MPS for availability.
I1 Maximum Output Current:
6 Amps
V2 Nominal Output Voltage:
3.3 Volts
I2 Maximum Output Current:
7 Amps
MECHANICAL SPECIFICATIONS
2.00
(50.80)
METAL CASE
0.45
(11.43)
CaseC4
I/O Connections
Pin Function P33
INSULATED BASE
0.040 0.002 DIA
(1.016 0.051)
0.20 MIN
(5.08)
1
2
3
4
5
6
7
8
+Input
Notes:
For “D12” and “D24” models the
case is connected to pin 2 (–Input).
1.800
(45.72)
0.10
(2.54)
–Input
No Pin
On/Off Control
+5V Output
Output Return
+3.3V Output
Trim
For “D48” models, the case is
connected to pin 1 (+Input).
5
0.200
(5.08)
1.200
6
1
2
(30.48)
2.00
(50.80)
3 EQ. SP. @
7
8
0.400 (10.16)
0.400
(10.16)
4
0.40
(10.16)
0.100
(2.54)
BOTTOM VIEW
Dimensions in inches (mm)
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MDC_BWR 33W Models.A05 Page 2 of 12
Dual Output BWR Models
Mixed Voltage, 5V AND 3.3V, 2” x 2”
33 Watt DC/DC Converters
Performance/Functional Specifications
Typical @ TA = +25°C under nominal line voltage, balanced "full-load" conditions, unless noted. ➀
Input
Output (continued)
Input Voltage Range:
➁
Short Circuit Current:
5V Output
3.3V Output
D12 Models
D24 Models
D48 Models
10-18 Volts (12V nominal)
18-36 Volts (24V nominal)
36-75 Volts (48V nominal)
5 Amps average, continuous
6 Amps average, continuous
➁
Overvoltage Protection:
5V Output
3.3V Output
Magnetic feedback
6.8 volts
4.5Volts
Overvoltage Shutdown: ➁
D12 Models
D24 Models
19-23 Volts (21V nominal)
37-42 Volts (40V nominal)
77-81 Volts (79V nominal)
Maximum Capacitive Loading
D48 Models
D12 Models
3.3V
5V
1000µF
470µF
2000µF
1000µF
Start-Up Threshold: ➁
D12 Models
D24 Models
9-10 Volts (9.3V nominal)
16.5-18 Volts (17V nominal)
34-36 Volts (35V nominal)
D24, D48 Models 3.3V
5V
D48 Models
Dynamic Characteristics
Undervoltage Shutdown: ➁
D12 Models
D24 Models
➁
Dynamic Load Response
5V (50-100% load step to 4% VOUT)
8.5-9.6 Volts (9.3V nominal)
16-17 Volts (16.5V nominal)
32.5-35 Volts (34V nominal)
300µsec maximum
3.3V (50-100% load step to 2.5% VOUT) 300µsec maximum
D48 Models
Start-Up Time ➁
VIN to VOUT
Input Current:
Normal Operating Conditions
Standby Mode:
20msec maximum
15msec maximum
See Ordering Guide
10mA typical
On/Off to VOUT
Off, OV, UV, Thermal Shutdown
Switching Frequency
285kHz ( 15kHz)
Input Reflected Ripple Current:
Source Impedance
D12 Models
Environmental
<0.1, no external input filtering
200mAp-p (150mAp-p typical)
250mAp-p (225mAp-p typical)
➅
MTBF
Bellcore, ground fixed, full power,
+25°C operating ambient temperature
1.3 million hours
D24/D48 Models
D12 Models
D24/D48 Models
Internal Input Filter Type
Pi (0.022µF - 4.7µH - 2.46µF)
1.67 million hours
Reverse-Polarity Protection: ➁
D12 Models
D24 Models
Operating Temperature (Ambient) ➁
Without Derating:
D12 Models
D24 Models
D48 Models
With Derating
1 minute duration, 6A maximum
1 minute duration, 4A maximum
1 minute duration, 2A maximum
–40 to +50°C
–40 to +60°C
–40 to +68°C
To +100°C (See Derating Curves)
D48 Models
On/Off Control (Pin 4): ➁ ➂ ➄
D12, D24 & D48 Models
On = open or 13V to +VIN, IIN = 50µA max.
Off = 0-0.8V, IIN = 1mA max.
Case Temperature
Maximum Operational
+100°C
+110°C minimum, +117°C maximum
Output
➁
For Thermal Shutdown
Storage Temperature
Flammability
VOUT Accuracy:
5V Output
–40 to +120°C
UL 94V-0
3% maximum
3.3V Output
1.5% maximum
Minimum Loading Per Specification
Ripple/Noise (20MHz BW) ➁ ➃
Line/Load Regulation ➁
Efficiency
No load, see Performance Specifications
See Ordering Guide
Physical
Dimensions
2" x 2" x 0.45" (50.8 x 50.8 x 11.43mm)
See Ordering Guide
Internal Case Connection
D12/D24 Models
D48 Models
See Ordering Guide / Efficiency Curves
–Input (Pin 2)
+Input (Pin 1)
Cross Regulation: ➁
5V Output (5V@0.6A, 3.3V@0.7-7A)
6% maximum
Case Material
Corrosion resistant steel with
non-conductive, epoxy-based, black
enamel finish and plastic baseplate
3.3V Output (3.3V@0.7A, 5V@0.6-6A) 0.5% maximum
Trim Range ➁
5%
Pin Material
Weight
Gold-plated copper alloy
2.7 ounces (76.5 grams)
Isolation Voltage:
Input-to-Output
Isolation Capacitance
Isolation Resistance
1500Vdc minimum
470pF
➀ Balanced “full-load” is 5V @ 3.3A/3.3V @ 5A. All models are specified with external 1µF
ceramic output capacitors.
100M
Primary to Secondary Insulation Level
D12/D24 Models
D48 Models
➁ See Technical Notes/Graphs for details.
Operational
Basic
➂ Applying a voltage to On/Off Control (pin 4) when no input power is applied to the converter
may cause permanent damage.
Temperature Coefficient
0.02%/per°C
➃ Output noise may be further reduced with the installation of additional external output capacitors.
See Technical Notes.
➁
Current Limit Inception:
5V @ 95% VOUT (3.3V @ 0A)
3.3V @ 98.5% VOUT (5V @ 0A)
➄ 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).
➅ Demonstrated MTBF available on request.
7.6-9.0 Amps
11.3-12.7 Amps
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MDC_BWR 33W Models.A05 Page 3 of 12
Dual Output BWR Models
Mixed Voltage, 5V AND 3.3V, 2” x 2”
33 Watt DC/DC Converters
Absolute Maximum Ratings
Input Voltage
Continuous:
"D12" Models 23 Volts
"D24" Models 42 Volts
"D48" Models 81 Volts
and remains within its specified accuracy band. Actual measured times will
vary with input source impedance, external input/output capacitance, and
the slew rate of the input voltages. The BWR-5/6-3.3/7 Series implements a
soft start circuit that limits the duty cycle of the PWM controller at power up,
thereby limiting the Input Inrush current.
Transient (100msec): "D12" Models 25 Volts
"D24" Models 50 Volts
"D48" Models 100 Volts
Input Reverse-Polarity Protection ➁
Input Current must be limited. 1 minute
duration. Fusing recommended.
"D12" Models
"D24" Models
"D48" Models
6 Amps
4 Amps
2 Amps
The On/Off Control to VOUT start-up time assumes the converter has its
nominal input voltage applied but is turned off via the On/Off Control pin. 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. Similar to the VIN to VOUT start-up, the On/Off Control
to VOUT start-up time is also governed by the internal soft start circuitry and
external load capacitance.
Output Current ➁
Current limited. Devices can withstand
an indefinite output short circuit.
On/Off Control (Pin 4) Max. Voltages
Referenced to –Input (pin 2)
+VIN
Storage Temperature
–40 to +120°C
Lead Temperature (Soldering, 10 sec.) +300°C
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 (34V 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 input voltage.
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.
TECHNICAL NOTES
5V & 3.3V Regulation
Input voltages exceeding the input overvoltage shutdown specification
listed in the Performance/Functional Specifications will cause the device to
shutdown. A built-in hysteresis of 0.6 to 1.6 Volts for all models will not allow
the converter to restart until the input voltage is sufficiently reduced.
The BWR 33 Watt Series converters are designed such that both the 5V and
3.3V outputs share a common regulation feedback control loop. Though the
feedback loop is influenced by both outputs, the 3.3 Volt output is dominant. As
a result, the 3.3 Volt regulation (1ꢀ) is superior to the 5 Volt regulation (1.5ꢀ).
On/Off Control
The converters are specified for load regulation of 10ꢀ to 100ꢀ loading
and for no-load to 100ꢀ loading. Operation below 10ꢀ of full load mandates
an increase in the regulation tolerance of 0.5ꢀ for 3.3 Volt output and an
increase of 1ꢀ for the 5 Volt output. A slight increase in switching noise may
also be observed for operation below 10ꢀ loading.
The On/Off Control (pin 4) may be used for remote on/off operation. As shown
in Figure 1, the control pin is referenced to the –Input (pin 2) and will be inter-
nally pulled to a high state. The standard BWR model (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 (less than +0.8V relative to –Input).
Operation with a full load on 3.3 Volt output and light to no load on 5 Volt
output is the most demanding for +5V regulation. Under such conditions
the internal "bleeder" circuit is activated to provide an internal load thereby
keeping regulation within the published specifications. The bleeder is activated
gradually so as not to cause any erratic behavior on the converters outputs. A
slight degradation in efficiency will occur while this internal load is activated.
Dynamic control of the on/off function is best accomplished with a mechani-
cal relay or an open-collector/open-drain circuit (optically isolated if appropriate).
The drive circuit should be able to sink approximately 1 mA for logic low.
The on/off control function is designed such that the converter can be
disabled while the input power is ramping up, and then "released" once the
input has stabilized.
Filtering and Noise Reduction
The BWR 33 Watt Series Converters achieve their rated ripple and noise
specifications with the use of 1μF output capacitors. In critical applications,
input/output noise may be further reduced by installing additional external I/O
capacitors. 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 located as close to the converter as possible.
+INPUT
1
4
RA
RB
D12 RA = 34.8kΩ, RB = 6.83kΩ
D24 RA = 100kΩ, RB = 9.74kΩ
D48 RA = 100kΩ, RB = 4.53kΩ
ON/OFF
CONTROL
2
–INPUT
Start-Up Time
Figure 1. Internal Circuitry for On/Off Control
The VIN to VOUT start-up time is the interval of time where the input voltage
crosses the turn-on threshold point, and the fully loaded output voltage enters
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MDC_BWR 33W Models.A05 Page 4 of 12
Dual Output BWR Models
Mixed Voltage, 5V AND 3.3V, 2” x 2”
33 Watt DC/DC Converters
Current Limiting
Short Circuit Condition
When power demands from either output fall within 126ꢀ to 181ꢀ of the rated When a converter is in current limit mode the output voltages will drop as the
output current, the DC/DC converter will go into a current limiting mode. In this
condition both output voltages will decrease proportionately with increases in
output current, thereby maintaining a somewhat constant power dissipation.
This is commonly referred to as power limiting (see Figures 2a and 2b). Current
limit inception is defined as the point where the full-power output voltage
falls below the specified tolerance. If the load current being drawn from the
converter is significant enough, the unit will go into a short circuit condition.
See "Short Circuit Condition."
output current demand increases (see figures 2a and 2b). If the output voltage
drops too low, the magnetically coupled voltage used to develop primary side
voltages will also drop, thereby shutting down the PWM controller.
Following a time-out period of 5 to 15 milliseconds, the PWM will restart,
causing the output voltages to begin ramping to their appropriate values. If the
short-circuit condition persists, another shutdown cycle will be initiated. This
on/off cycling is referred to as “hiccup” mode. The hiccup cycling reduces the
average output current, thereby preventing internal temperatures from rising
to excessive levels. The BWR is capable of enduring an indefinite short circuit
output condition.
Typical Current Limiting Characteristics for 3.3V Output
Thermal Shutdown
4
These BWR converters are equipped with Thermal Shutdown Circuitry. If the
internal temperature of the DC/DC converter rises above the designed operat-
ing temperature, a precision temperature sensor will power down the unit.
When the internal temperature decreases below the threshold of the tempera-
ture sensor the unit will self start.
3
2
Output Overvoltage Protection
Both output voltages are monitored for an overvoltage condition via magnetic
coupling to the primary side. If either output voltage should rise to a level which
could be damaging to the load circuitry, the sensing circuitry will power down
the PWM controller causing the output voltages to decrease. Following a time-
out of 5 to 15 milliseconds the PWM will restart, causing the output voltages to
ramp to their appropriate values. If the fault condition persists, and the output
voltages again climb to excessive levels, the overvoltage circuitry will initiate
another shutdown cycle. This on/off cycling is referred to as "hiccup" mode.
VIN NOM, VIN LO All Models
VIN HI D12, D24 Models
1
0
VIN HI
D48 Models
0
2
4
6
8
10
12
14
3.3 VOUT Average Ouput Current (Amps)
Figure 2a. Current Limiting Characteristics for 3.3V Output
Isolation/Case Connection
The BWR 33 Watt Series’ 5V and 3.3V outputs (pins 5 & 7) and return (pin 6)
are isolated from the +VIN and –VIN inputs (pins 1 & 2) via a transformer and
an opto-coupled transistor. Case connections are made internal to the DC/DC
converter. "D12 & D24" cases are connected to –Input (pin 2), "D48" to +Input
(pin 1).
Typical Current Limiting Characteristics for 5V Output
(3.3V Output @ 700mA)
5
4.5
4
3.5
3
2.5
2
VIN NOM, VIN LO
All Models
VIN HI D12, D24
Models
1.5
1
VIN HI
0.5
0
D48 Models
0
1
2
3
4
5
6
7
8
9
5 VOUT Average Ouput Current (Amps)
Figure 2b. Current Limiting Characteristics for 5V Output
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MDC_BWR 33W Models.A05 Page 5 of 12
Dual Output BWR Models
Mixed Voltage, 5V AND 3.3V, 2” x 2”
33 Watt DC/DC Converters
Input Reverse-Polarity Protection
Upon applying a reverse-polarity voltage to the DC/DC converter, an internal
diode will be forward biased, drawing 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.
5
+5V OUTPUT
1
2
+INPUT
+5V LOAD
6
OUTPUT
–INPUT
RETURN
20kΩ
5-22
Turns
Input Fusing
+3.3V LOAD
7
8
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 a sustained, non-current-limited, input-voltage polarity
reversal exists. For DATEL BWR 33 Watt Series Converters, slow blow fuses are
recommended with values no greater than the following.
4
+3.3V OUTPUT
TRIM
ON/OFF
CONTROL
Figure 3.Trim Connections using a Trimpot
VIN Range
Fuse Value
6 Amps
4 Amps
5
"D12" Models
"D24" Models
"D48" Models
+5V OUTPUT
1
2
+INPUT
+5V LOAD
2 Amps
6
OUTPUT
RETURN
–INPUT
It is recommended that fuses be installed in the +Input line.
+3.3V LOAD
Trimming Output Voltages
7
8
4
+3.3V OUTPUT
TRIM
ON/OFF
CONTROL
These BWR converters have a trim capability (pin 8) that allow users to adjust
the output voltages 5ꢀ. A trim adjustment will cause an equal percentage of
change in both outputs. Adjustments to the output voltages can be accom-
plished via a trim pot Figure 3 or a single fixed resistor as shown in Figures 4
and 5. 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 minimize sensitivity to changes in
temperature.
R TRIM
DOWN
Figure 4. Decrease Output Voltage Trim Connections Using A Fixed Resistor
Trim Down
3.55(VO – 1.273)
RTDOWN (k7) =
–13
A single resistor connected from the Trim Pin (pin 8) the +3.3V Output (pin 7),
see Figure 4, will decrease the output voltages. A resistor connected from the
Trim Pin (pin 8) to Output Return (pin 6) will increase the output voltages.
(
)
3.3 – VO
Table 1 shows the typical Trim Resistor values for output voltage changes of
1 through 5ꢀ.
5
+5V OUTPUT
1
2
+INPUT
–INPUT
+5V LOAD
Trim adjustment greater than 5ꢀ can have an adverse affect on the
converter’s performance and is not recommended.
6
OUTPUT
RETURN
+3.3V LOAD
Trim Down
Trim Up
7
8
4
+3.3V OUTPUT
TRIM
ON/OFF
CONTROL
0ꢀ
1ꢀ
2ꢀ
3ꢀ
4ꢀ
5ꢀ
201.5k
92.5k
56.1k
38.0k
27.1k
123.7k
55.3k
32.6k
21.2k
14.3k
R TRIM
UP
Figure 5. Increase Output Voltage Trim Connections Using A Fixed Resistor
Trim Up
Table 1. Percentage of Output Voltage Change vs Trim Resistor Value (Ohms)
4.51
– 13
RTUP (k7) =
(VO – 3.3)
Note: Accuracy of adjustment is subject to the tolerances of
resistor values, reference accuracy and factory-adjusted output
accuracy. VO = desired output voltage.
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MDC_BWR 33W Models.A05 Page 6 of 12
Dual Output BWR Models
Mixed Voltage, 5V AND 3.3V, 2” x 2”
Typical Performance Curves
33 Watt DC/DC Converters
D12 Model
D12, D24, D48 Models
Input Ripple Current (VIN = 18V, 5V @ 3A, 3.3V@ 4.5A,
no external filtering, source impedance <0.1Ω.)
Output Ripple and Noise (PARD)
(VIN = nominal, 5V@3A, 3.3V @ 4.5A, external 1µF output capacitors.)
5V Output
Ripple/Noise
50mV/div
20MHz BW
50mA/div
3.3V Output
Ripple/Noise
50mV/div
20MHz BW
1µsec/div
1µsec/div
D24 Model
Input Ripple Current (VIN = 36V, 5V @ 3A, 3.3V@ 4.5A,
no external filtering, source impedance <0.1Ω.)
Output Ripple and Noise (PARD)
(VIN = nominal, 5V@0A, 3.3V @ 7A, external 1µF output capacitors.)
5V Output
Ripple/Noise
50mV/div
20MHz BW
50mA/div
3.3V Output
Ripple/Noise
50mV/div
20MHz BW
1µsec/div
1µsec/div
D48 Model
Output Ripple and Noise (PARD)
(VIN = nominal, 5V@ 6A, 3.3V @ 0A, external 1µF output capacitors.)
Input Ripple Current (VIN = 75V, 5V @ 3A, 3.3V@ 4.5A,
no external filtering, source impedance <0.1Ω.)
5V Output
Ripple/Noise
50mV/div
20MHz BW
50mA/div
3.3V Output
Ripple/Noise
50mV/div
20MHz BW
1µsec/div
1µsec/div
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MDC_BWR 33W Models.A05 Page 7 of 12
Dual Output BWR Models
Mixed Voltage, 5V AND 3.3V, 2” x 2”
33 Watt DC/DC Converters
Typical Performance Curves
D12, D24, D48 Models
D12, D24, D48 Models
5V Output Half-Load to Full-Load Transient Response
(VIN = nominal, 3.3V@ 700mA, external 1µF output capacitors.)
3.3V Output Half-Load to Full-Load Transient Response
(VIN = nominal, 5V@ 600mA, external 1µF output capacitors.)
5V Output
100mV/div
3.3V Output
100mV/div
6A
Output
Current
2A/div
Output
Current
2A/div
3A
100µsec/div
100µsec/div
5V Output Full-Load to Half-Load Transient Response
(VIN = nominal, 3.3V@ 700mA, external 1µF output capacitors.)
3.3V Output Full-Load to Half-Load Transient Response
(VIN = nominal, 5V@ 600mA, external 1µF output capacitors.)
5V Output
100mV/div
3.3V Output
100mV/div
7A
6A
Output
Current
2A/div
Output
Current
2A/div
3A
3.5A
100µsec/div
100µsec/div
Cross Regulation Effects on +3.3VOUT
Cross Regulation Effects On +5VOUT
(Reference Point 5V @ 3.9A, 3.3V @ 4A)
(Reference Point 5V @ 4A, 3.3V @ 3.9A)
0.8
0.6
0.4
0.2
0
4.0
3.0
2.0
1.0
0
3.3V @ 0A
5V @ 0A
5V @ 2A
3.3V @ 2A
5V @ 4A
3.3V @ 4A
–1.0
–2.0
–0.2
–0.4
3.3V @ 6A
5V @ 6A
–3.0
–4.0
3.3V @ 7A
–0.6
0
1
2
3
4
5
6
0
1
2
3
4
5
6
7
5 Volt Output Current (Amps)
3.3 Volt Current (Amps)
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MDC_BWR 33W Models.A05 Page 8 of 12
Dual Output BWR Models
Mixed Voltage, 5V AND 3.3V, 2” x 2”
33 Watt DC/DC Converters
Typical Performance Curves
D12, D24, D48 Models
D12, D24, D48 Models
5V
5V
Output
2V/div
Output
2V/div
3.3V
Output
2V/div
3.3V
Output
2V/div
VIN
Remote
On/Off
(Pin 4)
2msec/div
2msec/div
D12 Models
D24, D48 Models
D24/D48 - 3.3 Volt Output Efficiency vs. Line and Load
(+5V @ 600mA)
D12 - 3.3 Volt Output Efficiency vs. Line and Load
(+5V @ 600mA)
95
90
85
80
75
70
65
60
55
50
90
85
80
75
70
65
60
V
IN = MIN
V
IN = 10V
V
IN = NOMINAL
V
IN = 12V
V
IN = MAX
V
IN = 18V
0
0.78
1.56
2.33
3.11
3.89
4.67
5.44
6.22
7.00
0.70
1.40
2.10
2.80
3.50
4.20
4.90
5.60
6.30
7.00
+3.3V Output Current (Amps)
+3.3V Output Current (Amps)
D24/D48 - 5 Volt Output Efficiency vs. Line and Load
(+3.3V @ 700mA)
D12 - 5 Volt Output Efficiency vs. Line and Load
(+3.3V @ 700mA)
95
90
85
80
75
70
65
60
55
50
90
V
IN = MIN
V
IN = 10V
85
80
75
70
65
60
V
IN = 12V
V
IN = NOMINAL
V
IN = MAX
V
IN = 18V
0
0.67
1.33
2.00
2.67
3.33
4.00
4.67
5.33
6.00
0.60
1.20
1.80
2.40
3.00
3.60
4.20
4.80 5.40
6.00
+5V Output Current (Amps)
+5V Output Current (Amps)
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MDC_BWR 33W Models.A05 Page 9 of 12
Dual Output BWR Models
Mixed Voltage, 5V AND 3.3V, 2” x 2”
33 Watt DC/DC Converters
Temperature Derating and Electrical Performace Curves
D12 Models
D24 Models
Output Power vs. Ambient Temperature
Output Power vs. Ambient Temperature
VIN = 12V, Natural Convection Air flow
VIN = 24V, Natural Convection Air flow
35
30
25
20
15
10
5
35
30
25
20
15
10
5
Loading (5V @ 1.98A, 3.3V @ 7A)
Loading (5V @ 1.98A, 3.3V @ 7A)
Loading (5V @ 3.74A, 3.3V @ 4.33A)
Loading (5V @ 5.1A, 3.3V @ 2.3A)
Loading (5V @ 6A, 3.3V @ 0.7A)
Loading (5V @ 3.74A, 3.3V @ 4.33A)
Loading (5V @ 5.1A, 3.3V @ 2.3A)
Loading (5V @ 6A, 3.3V @ 0.7A)
0
–40
0
–40
0
15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
0
15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
Ambient Temperature ( C)
˚
Ambient Temperature ( C)
˚
Output Power vs. Ambient Temperature
VIN = 36V, Natural Convection Air flow
Output Power vs. Ambient Temperature
VIN = 18V, Natural Convection Air flow
35
30
25
20
15
10
5
35
30
25
20
15
10
5
Loading (5V @ 1.98A, 3.3V @ 7A)
Loading (5V @ 3.74A, 3.3V @ 4.33A)
Loading (5V @ 5.1A, 3.3V @ 2.3A)
Loading (5V @ 6A, 3.3V @ 0.7A)
Loading (5V @ 1.98A, 3.3V @ 7A)
Loading (5V @ 3.74A, 3.3V @ 4.33A)
Loading (5V @ 5.1A, 3.3V @ 2.33A)
Loading (5V @ 6A, 3.3V @ 0.7A)
0
–40
0
–40
0
15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
0
15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
Ambient Temperature ( C)
˚
Ambient Temperature ( C)
˚
Output Power vs. Ambient Temperature
Output Power vs. Ambient Temperature
VIN = Nominal, 5V @ 3.74A/3.3V @ 4.33A
VIN = Nominal, 5V @ 3.74A/3.3V @ 4.33A
35
30
25
20
15
10
5
35
30
25
20
15
10
5
Natural Convection Air FlowLoading
150lfm Air Flow
Natural Convection Air FlowLoading
150lfm Air Flow
300lfm Air Flow
300lfm Air Flow
0
–40
0
–40
0
15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
0
15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
Ambient Temperature ( C)
˚
Ambient Temperature ( C)
˚
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MDC_BWR 33W Models.A05 Page 10 of 12
Dual Output BWR Models
Mixed Voltage, 5V AND 3.3V, 2” x 2”
33 Watt DC/DC Converters
Temperature Derating and Electrical Performace Curves
D48 Models
Output Power vs. Ambient Temperature
Output Power vs. Ambient Temperature
VIN = 48V, Natural Convection Air flow
VIN = Nominal, 5V @ 3.74A/3.3V @ 4.33A
35
30
25
20
15
10
5
35
30
25
20
15
10
5
Loading (5V @ 1.98A, 3.3V @ 7A)
Natural Convection Air FlowLoading
150lfm Air Flow
Loading (5V @ 3.74A, 3.3V @ 4.33A)
Loading (5V @ 5.1A, 3.3V @ 2.33A)
Loading (5V @ 6A, 3.3V @ 0.7A)
300lfm Air Flow
0
–40
0
–40
0
15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
0
15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
Ambient Temperature ( C)
˚
Ambient Temperature ( C)
˚
Output Power vs. Ambient Temperature
VIN = 75V, Natural Convection Air flow
35
30
25
20
15
10
5
Loading (5V @ 1.98A, 3.3V @ 7A)
Loading (5V @ 3.74A, 3.3V @ 4.33A)
Loading (5V @ 5.1A, 3.3V @ 2.33A)
Loading (5V @ 6A, 3.3V @ 0.7A)
0
–40
0
15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
Ambient Temperature ( C)
˚
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MDC_BWR 33W Models.A05 Page 11 of 12
Dual Output BWR Models
Mixed Voltage, 5V AND 3.3V, 2” x 2”
33 Watt DC/DC Converters
Options and Adaptations
MECHANICAL SPECIFICATIONS
Optional Functions
Model BWR-5/6-3.3/7-D48-30745
The dual output BWR 33W DC/DC converters offer two mechanical options. Per
the Ordering Guide on page 2, the trailing DXX in each part number pertains to
the base part number. Part-number suffixes are added after the “DXX,” indicat-
ing 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.
2.00
(50.08)
PLASTIC CASE
0.48
(12.19)
Case C22A
STANDOFF
0.020 (0.51)
0.040 0.001 DIA.
(1.016 0.025)
Suffix Description
0.110 0.010
(2.8 0.25)
Blank On/Off Control function with positive polarity in pin 4 position. The
1.800
(45.72)
0.10
(2.54)
pin length is 0.2 inches (5.08 mm).
L1
L2
Trim the pin length to 0.110 0.010 inches (2.79 0.25mm). This
option requires a minimum order quantity.
5
6
0.200
(5.08)
Trim the pin length to 0.145 0.010 inches (3.68 0.25mm). This
option requires a minimum order quantity.
1.200
(30.48)
1
2
2.00
3 EQ. SP. @
0.400 (10.16)
(50.08)
Adaptations
7
8
0.400
(10.16)
There are various additional configurations available on BWR 33W DC/DC’s.
Because designating each of them with a standard part-number suffix is
not always feasable, such are designated by DATEL in assigning a 5-digit
“adaptation code” after the part-number suffixes. Once a configuration has
been requested by a customer and created by DATEL, the resulting product is
available to any customer as a “standard” off-the-shelf product. Contact DATEL
directly if you are interested in your own set of options/adaptations. Our policy
for minimum order quantities may apply.
4
0.40
(10.16)
0.100
(2.54)
BOTTOM VIEW
Dimensions in inches (mm)
I/O Connections
Pin Function P60A
1
2
3
4
5
6
7
8
+Input
Consequently, the following product is offered for sale:
–Input
No Pin
BWR-5/6-3.3/7-D48-30745
On/Off Control
+3.3V Output
Output Return
+5V Output
+3.3V Trim
Standard product, 48VIN, 5V/6A and 3.3V/7A outputs with modified case/pin
out C22A/P60A (LW016FA compatible), negative On/Off logic, modified Trim
function for 3.3VOUT (no trim for 5 VOUT) and trimmed pin length to 0.110 inches
(2.8 mm).
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
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_BWR 33W Models.A05 Page 12 of 12
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