INNOVATION and EX C ELL E N C E
Dual Output
BWP Models
+ V
I N
V
I N
+ V
O U T
V
O U T
C O M M O N
R E F E R E N C E &
E R R O R A M P
O P T O
I S O L A T I O N
P W M
C O N T R O L L E R
Figure 1. Simplified Schematic
DIP-Packaged, Standard-Pinout
3 Watt, DC/DC Converters
Features
The proven cost-effectiveness, quality and long-term reliability that has come to
define DATEL's standard, 3W, dual-output, DIP-packaged DC/DC converters (see
BST 3W Models) is now available in the "other standard pinout" (see next page)
made popular by off-shore suppliers. These newly designed BWP Models exploit
totally automated SMT assembly techniques and do not contain any trimpots, "wet"
aluminum electrolytic capacitors, or manually soldered "flying" leads. Their made-in-
the-USA quality and affordable pricing are rapidly making them the converters of
choice in many existing applications.
BWP DC/DC converters bring true component-like convenience to designers of
modern distributed power systems. Exploiting an efficient, high-frequency (170-
200kHz), flyback topology and high-density SMT assembly techniques, BWP DC/
DC's have enough space to include input (pi type) and output filters within their
package. They are fully isolated (500Vdc guaranteed) and do not require any
external components to meet published specifications. They operate, without
derating, over the full 40 to +75C temperature range.
Output voltages are either 5, 12 or 15 Volts. Input voltage ranges are either
4.5-9V ("D5" models), 9-18V ("D12" models) or an ultra-wide 18-72V ("D48"
models). Output transient response time is a quick 200sec, and output ripple and
noise are typically 75mVp-p. All models are certified to UL1950, CSA 22.2 No. 950
and IEC950. Full EMI/EMC characterizations are currently in progress.
DATEL's BWP Model 3W DC/DC's are ideal replacements for other more costly,
less reliable power converters as well as excellent choices for new design-ins in
systems demanding small size, low cost and high reliability.
Low cost! High quality!
Highly reliable, 100% SMT construction
Standard DIP package and pinout
No external components required
5, 12 or 15 Volt outputs
Choice of 3 wide input ranges:
4.5-9 Volts
9-18 Volts
18-72 Volts
Guaranteed efficiencies to 75%
Fully isolated, 500Vdc guaranteed
Internal input/output filtering
Output current limiting
40 to +75C operation with no derating
UL1950/C22.2 No. 950/IEC950 certified
Modifications and customs for OEM's
DATEL, Inc., Mansfield, MA 02048 (USA)
Tel: (508)339-3000, (800)233-2765 Fax: (508)339-6356
Email: sales@datel.com
Internet: www.datel.com
XWP Series
3 W , D U A L O U T P U T D C / D C C O N V E R T E R S
2
Mechanical Specifications
Typical at T
A
= +25C under nominal line voltage and full-load conditions unless otherwise noted.
Ripple/Noise (R/N) measured over a 20MHz bandwidth.
Balanced loads, 10% to 100% load.
Nominal line voltage, no-load/full-load conditions.
BWP-5/250-D12
5
250
75
120
0.5%
0.5%
12
9-18
25/267
75%
78%
C1A, P20
BWP-5/250-D48
5
250
75
120
0.5%
0.5%
48
18-72
7/69
72%
76%
C1A, P20
BWP-12/105-D5
12
105
75
150
0.5%
0.5%
5
4.5-9
60/690
71%
73%
C1A, P20
BWP-12/125-D12
12
125
75
150
0.5%
0.5%
12
9-18
25/329
74%
76%
C1A, P20
BWP-12/125-D48
12
125
75
150
0.5%
0.5%
48
18-72
8/81
73%
77%
C1A, P20
BWP-15/85-D5
15
85
75
150
0.5%
0.5%
5
4.5-9
68/689
72%
74%
C1A, P20
BWP-15/100-D12
15
100
75
150
0.5%
0.5%
12
9-18
25/329
74%
76%
C1A, P20
BWP-15/100-D48
15
100
75
150
0.5%
0.5%
48
18-72
8/81
73%
77%
C1A, P20
Performance Specifications and Ordering Guide
R/N (mVp-p)
Load
V
OUT
(Volts)
Output
Package
(Case,
Pinout)
Efficiency
Regulation (Max.)
Line
V
IN
Nom.
(Volts)
Range
(Volts)
Model
Input
I
IN
(mA)
Max.
Typ.
Typ.
Min.
I
OUT
(mA, Max.)
P A R T N U M B E R S T R U C T U R E
M E C H A N I C A L S P E C I F I C A T I O N S
I/O Connections
1.25
(31.75)
0.15 MIN
(3.81)
0.200
(5.08)
STANDOFFS
0.025
(0.64)
0.020 0.002 DIA.
(0.508 0.051)
0.45
(11.43)
0.10
(2.54)
0.80
(20.32)
0.600
(15.24)
0.08
(2.03)
0.100
(2.54)
0.900
(22.86)
1.000
(25.40)
1.100
(27.94)
1 2 3
10 11 12
24 23 22
15 14 13
PIN 1
INDICATOR
BOTTOM VIEW
PLASTIC CASE WITH AN INSULATED BASE
Input Voltage Range:
D5
= 4.5-9 Volts (5V nominal)
D12
= 9-18 Volts (12V nominal)
D48
= 18-72 Volts (48V nominal)
Nominal Output Voltages:
5, 12 or 15 Volts
Maximum Output Current
in mA from each output
Wide Range Input
Alternate pinout
Output Configuration:
B
= Bipolar
15
B WP
100
D48
-
/
-
Pin
Function P20
Pin
Function P20
1
+Input
13
Input
2
Output
14
+Output
3
Common
15
Common
10
Common
22
Common
11
+Output
23
Output
12
Input
24
+Input
Case C1A
Output P
o
wer (W
atts)
Ambient Temperature (
C)
40
0
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95 100
3.5
3
2.5
2
1.5
1
0.5
0
Output Power vs. Ambient Temperature
V
IN
Nominal, Natural Convection
T E M P E R A T U R E D E R A T I N G
BWP Models
3 W , D U A L O U T P U T D C / D C C O N V E R T E R S
3
Performance/Functional Specifications
Typical @ T
A
= +25C under nominal line voltage and full-load conditions unless noted.
T E C H N I C A L N O T E S
These power converters require a minimum 10% loading to maintain specified regulation.
Operation under no-load conditions will not damage these devices; however they may not
meet all listed specifications.
Application-specific internal input/output filtering can be recommended and perhaps added
internally upon request. Contact DATEL Applications Engineering for details.
Devices can be screened or modified for higher guaranteed isolation voltages.
Contact DATEL Applications Engineering for details or see DATEL's BST 3W DC/DC's
for guaranteed 1000Vdc isolation.
Input
Input Voltage Range:
"D5" Models
4.5-9 Volts (5V nominal)
"D12" Models
9-18 Volts (12V nominal)
"D48" Models
18-72 Volts (48V nominal)
Input Current
See Ordering Guide
Input Filter Type
Pi
Reverse-Polarity Protection
Yes (Instantaneous, 2A maximum)
Output
V
OUT
Accuracy
(50% load)
1%, maximum
Temperature Coefficient
0.02% per C
Ripple/Noise
(20MHz BW)
See Ordering Guide
Line/Load Regulation
See Ordering Guide
Efficiency
See Ordering Guide
Isolation Voltage
500Vdc, minimum
Current Limiting:
"D5" Models
Power-limiting technique, auto-recovery
"D12" and "D48" Models
Hiccup technique, auto-recovery
Dynamic Characteristics
Transient Response
(50% load step)
200sec to 1.5% of final value
Switching Frequency:
"D48" Models
200kHz
"D5" and "D12" Models
170kHz
Environmental
Operating Temperature
(Ambient, no derating)
40 to +75C
Storage Temperature
40 to +100C
Physical
Dimensions
1.25" x 0.8" x 0.45" (31.8 x 20.3 x 11.4mm)
Case Material
Diallyl phthalate, UL94V-0 rated
Pin Material
Brass, solder coated
Weight
0.5 ounces (14.2 grams)
Input Voltage:
"D5" Models
12 Volts
"D12" Models
20 Volts
"D48" Models
80 Volts
Input Reverse-Polarity Protection
Current must be <2A. Brief duration
only. Fusing recommended.
Output Overvoltage Protection
None
Output Current
Current limited. Max. current and
short-circuit duration are model
dependent. "D12" and "D48" models
can withstand sustained output short
circuits.
Storage Temperature
40 to +100C
Lead Temperature
(soldering, 10 sec.)
+300C
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.
Absolute Maximum Ratings
Floating Outputs
Since these are isolated DC/DC converters, their outputs are "floating." Any
BWP 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 (pins 11 and 14) and Output pins (pins 2 and 23), with either output
grounded. The Common (pins 3, 10,15 and 22) should be left open.
Minimum 20% loading is recommended under these conditions.
Filtering and Noise Reduction
All BWP 3 Watt DC/DC Converters achieve their rated ripple and noise
specifications without the use of external input/output capacitors. In critical
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 (pins 2,
11, 14 and 23) and Common (pins 3, 10, 15 and 22) as shown in Figure 2.
The caps should be located as close to the power converters as possible.
Typical values are listed in the tables below. In many applications, using
values greater than those listed will yield better results.
To Reduce Input Ripple
"D5" Models
47F, 15V
"D12" Models
10F, 35V
"D48" Models
4.7F, 100V
To Reduce Output Ripple
5V Outputs
47F, 10V, Low ESR
12/15V Outputs
22F, 20V, Low ESR
In critical, space-sensitive applications, DATEL may be able to tailor the
internal input/output filtering of these units to meet your specific require-
ments. Contact our Applications Engineering Group for additional details.
Figure 2. Using External Capacitors to Reduce
Input/Output Ripple/Noise
Input Fusing
Certain applications and/or safety agencies may require the installation of
fuses at the inputs of power conversion components. For DATEL BWP 3
Watt DC/DC Converters, you should use slow-blow type fuses with values no
greater than the following:
V
IN
Range
Fuse Value
"D5"
1.5A
"D12"
1A
"D48"
0.5A
DATEL's world-class design, development and manufacturing team stands
ready to work with you to deliver the exact power converter you need for your
demanding, large volume, OEM applications. And ... we'll do it on time and
within budget!
Our experienced applications and design staffs; quick-turn prototype
capability; highly automated, SMT assembly facilities; and in-line SPC
quality-control techniques combine to give us the unique ability to design and
deliver any quantity of power converters to the highest standards of quality
and reliability.
We have compiled a large library of DC/DC designs that are currently used in
a variety of telecom, medical, computer, railway, aerospace and industrial
applications. We may already have the converter you need.
Contact us. Our goal is to provide you the highest-quality, most cost-effective
power converters available.
XWP Series
3 W , D U A L O U T P U T D C / D C C O N V E R T E R S
DATEL 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. The DATEL logo is a registered DATEL, Inc. trademark.
DATEL (UK) LTD. Tadley, England Tel: (01256)-880444
DATEL S.A.R.L. Montigny Le Bretonneux, France Tel: 01-34-60-01-01
DATEL GmbH Mnchen, Germany Tel: 89-544334-0
DATEL KK Tokyo, Japan Tel: 3-3779-1031, Osaka Tel: 6-354-2025
DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151
Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356
Internet: www.datel.com Email: sales@datel.com
Data Sheet Fax Back: (508) 261-2857
DS-0407 6/01
C U S T O M C A P A B I L I T I E S
+INPUT
INPUT
+OUTPUT
1, 24
12, 13
11, 14
2, 23
COMMON
3, 10, 15, 22
C
IN
C
OUT
C
OUT
+
+
+
OUTPUT
INNOVATION and EX C ELL E N C E
ISO-9001 REGISTERED
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