Product Data Sheet
S
MALL
5 W
ATT
R
EGULATED
P
ACKAGE
DC/DC C
ONVERTER
WP05R
FEATURES
SMALL PACKAGE SIZE: 1" X 2"
INDUSTRY STANDARD PINOUT
SURFACE MOUNT DEVICES (SMD)
LOW-COST ALTERNATE SOURCE
CONTINUOUS SHORT CIRCUIT PROTECTION
UL1950 RECOGNITION
(SOME MODELS PENDING)
MEETS FCC CLASS B
APPLICATIONS
TELECOMMUNICATION EQUIPMENT
BATTERY POWERED SYSTEMS
PORTABLE INSTRUMENTS
PROCESS CONTROL EQUIPMENT
TRANSPORTATION EQUIPMENT
DISTRIBUTED POWER SYSTEMS
SPACE-CRITICAL APPLICATIONS
DESCRIPTION
The WP05R Series is a family of high performance DC/DC
converters that offer high efficiency and regulated outputs
over a 2:1 input voltage range of either 18-36VDC or 36-
72 VDC.
Surface mount devices and manufacturing technology make
it possible to offer performance equivalent to competition
at a lower cost.
A self oscillating flyback topology coupled with a rugged
MOSPOWER transistor are used to produce a highly reli-
able product with a minimum parts count. The internal
body diodes of these FETS protect the unit against input
voltage reversal. An external fuse is required to limit the
body diode current to 2 amps.
The WP05R Series offers low noise (approximately 50 to
75mVp-p) without the addition of an external capacitor.
The series is also 6-sided shielded, further reducing
system noise. This shield is connected to -VIN.
No external heatsink is required for the WP05R Series
to supply its rated 5 watts. With a minimum amount of
airflow, the temperature range may be extended from
70°C to 85°C. (See derating curve.)
The package of the WP05R Series is plastic. This
eliminates the layout precautions required by metal
enclosed devices. The encapsulant material is rated
UL94V-0 for flammability and offers excellent heat
transfer characteristics.
Internal circuitry provides continuous short-circuit pro-
tection and automatic restart after the short is removed.
3400 E Britannia Drive
WP05R 5/98 REV B
Tucson, Arizona 85706
Phone: 520.295.4100
Fax: 520.770.9369
Internet: http://www.cdpowerelectronics.com
Page 1
ELECTRICAL SPECIFICATIONS
Specifications typical at T
A
= +25°C, nominal input voltage, rated output current unless otherwise specified.
NOMINAL
INPUT
VOLTAGE
MODEL
WP05R24S03
WP05R24S05
WP05R24S12
WP05R24S15
WP05R24D05
WP05R24D12
WP05R24D15
WP05R48S03
WP05R48S05
WP05R48S12
WP05R48S15
WP05R48D05
WP05R48D12
WP05R48D15
(VDC)
24
24
24
24
24
24
24
48
48
48
48
48
48
48
RATED
OUTPUT
VOLTAGE
(VDC)
3.3
5
12
15
±5
±12
±15
3.3
5
12
15
±5
±12
±15
OUTPUT CURRENT
MIN LOAD
(mA)
25
50
21
17
±25
±10
±8
25
50
21
17
±25
±10
±8
RATED LOAD
(mA)
1500
1000
417
333
±500
±208
±167
1500
1000
417
333
±500
±208
±167
INPUT CURRENT
MIN LOAD
(mA)
20
20
20
20
20
20
20
13
13
13
13
13
13
13
RATED LOAD
(mA)
300
265
255
250
265
255
250
150
135
127
125
135
127
125
EFFICIENCY
(%)
70
78
82
83
78
82
83
70
78
82
83
78
82
83
NOTE: Other input and output voltages may be available. Please consult factory.
COMMON SPECIFICATIONS
Specifications typical at T
A
= +25°C, nominal input voltage, rated output current unless otherwise specified.
PARAMETER
INPUT
Voltage Range
Reflected Ripple Current
ISOLATION
Rated Voltage
Test Voltage
Resistance
Capacitance
Leakage Current
OUTPUT
Rated Power
Voltage Setpoint Accuracy
Singles
Duals
Temperature Coefficent
Line Regulation
Singles
Duals
Load Regulation
Singles
Duals
Ripple and Noise
24VIN Models
48VIN Models
5V Output Models
Other Models
Transient Response
Overvoltage Protection Threshold
500
500
10
V
ISO
= 240VAC, 60Hz
470
50
5.0
±1
±2
±0.02
Low Line to High Line
5
1
Min Load to Rated Load
25
1
BW = 20Hz to 10MHz
BW = 20Hz to 10MHz
BW = 20Hz to 2MHz
BW = 20Hz to 2MHz
Rated Load to Min Load
Min Load to Rated Load
3.3V Output
5V Output
12V Output
15V Output
100
50
5
10
10
10
3.9
6.8
15
18
140
30
Ground Benign, Circuit Stress Method
T
A
= +25°C
T
A
= +70°C
T
A
= +85°C
Environmental Stress = 1.0
T
A
= +25°C
T
A
= +70°C
T
A
= +85°C
No Power Derating
-40
-40
-55
636,843
199,000
122,009
1,079,617
205,055
98,839
mV
%
mVp-p
mVp-p
mVrms
mVrms
mS
mS
VDC
VDC
VDC
VDC
KHz
g
Hr
Hr
Hr
Hr
Hr
Hr
mV
%
±2
±4
pF
µArms
W
%
%
%/°C
CONDITIONS
MIN
TYP
MAX
UNITS
18
36
24
48
20
36
72
35
VDC
Vpk
VDC
VDC
mAp-p
60 Hz, 10 Seconds
GΩ
GENERAL
Switching Frequency
Package Weight
MTTF per MIL-HDBK-217
Revision F
MTTF per Bellcore TR-NWT-000322
Issue 4, September, 1992
TEMPERATURE
Specification
Operation
Storage
+70
+100
+110
°C
°C
°C
Page 2
WP05R 5/98 REV B
ABSOLUTE MAXIMUM RATINGS
Output Short-Circuit Duration.............................................................Continuous
Case Temperature .....................................................................................100°C
Lead Temperature (soldering, 10 seconds max).....................................+300°C
ORDERING INFORMATION
WP05R
Device Family
Indicates Wide Input Power 5 Watt Regulated Unit
Model Number
Selected From Table of Electrical Characteristics
Where:
xx = Input Voltage
y = Number of Outputs (Single "S", Dual "D")
zz = Output Voltage
Package Option
Screening Option
xxyzz
N
/H
MECHANICAL
TOP VIEW
2.000±0.015"
(50.80±0.38)
SIDE VIEW
0.400±0.10"
(10.16)
1.000±0.015"
(25.4±0.38)
0.015±.005"
(0.38)
0.040±0.003"
(1.02±0.08)
0.170" Min.
(4.32)
NOTES: All dimensions are in inches (millimeters).
+V
OUT
GRID: 0.100 inches (2.54 millimeters)
*
Common pins are not present on single output
+
V
IN
models.
*
COM
-V
IN
Product marked with specific model ordered, date
code, job code.
PIN PLACEMENT TOLERANCE: ±0.015 inches.
MATERIAL: Units are encapsulated in a low thermal resistance molding
compound which has excellent chemical resistance, wide operating tem-
perature range, and good electrical properties under high humidity environ-
ments. The encapsulant and the outer shell of the unit have UL94V-0
ratings. Lead material is brass with a solder plated surface to allow ease of
solderability.
-V
OUT
BOTTOM VIEW
APPLICATION NOTES
POWER DERATING
6
500
LFM
AIRFLOW
FUSING
For maximum safety and system protection, a Buss
PC-TRON, PCB 2A fuse or equivalent should be used
in series with the input.
5
Output Power (Watts)
4
3
2.5W
2
NATURAL
CONVECTION
1
0
-25
25
50
75
100
125
70°C 85°C
Ambient Temperature (°C)
WP05R 5/98 REV B
Page 3
TYPICAL PERFORMANCE CURVES
T
A
= +25°C, nominal input voltage, rated load, recommended external components applied, unless otherwise specified.
EFFICIENCY vs INPUT VOLTAGE
+2%
Change in Efficiency (%)
Change in Efficiency (%)
EFFICIENCY vs OUTPUT LOAD
+9%
Change in Efficiency (%)
EFFICIENCY vs TEMPERATURE
+10%
+5%
TYP
-5%
-10%
-40
TYP
-2%
-4%
-6%
Low
Line
+6%
+3%
TYP
-3%
Nom
Line
Vin
High
Line
25%
44%
63%
82%
100%
-5
+25
+55
+85
Output Load (% of Rated)
T
A
(°C)
OUTPUT NOISE vs INPUT VOLTAGE
OUTPUT NOISE vs OUTPUT LOAD
+30%
Change in Output Noise (%)
Change in Output Noise (%)
OUTPUT NOISE vs TEMPERATURE
+150%
+100%
+50%
TYP
-50%
+20%
Change in Output Noise (%)
+10%
TYP
-10%
-20%
Low
Line
Nom
Line
Vin
TYP
-30%
-60%
-90%
25%
High
Line
44%
63%
82%
100%
-40
-5
+25
+55
+85
Output Load (% of Rated)
T
A
(°C)
REFLECTED RIPPLE CURRENT
vs INPUT VOLTAGE
Change in Reflected Ripple Current (%)
Change in Reflected Ripple Current (%)
REFLECTED RIPPLE CURRENT
vs OUTPUT LOAD
Change in Reflected Ripple Current (%)
REFLECTED RIPPLE CURRENT
vs TEMPERATURE
+300%
+200%
+100%
TYP
+1`50%
+100%
+50%
TYP
-50%
Low
Line
Nom
Line
Vin
+30%
TYP
-30%
-60%
-90%
25%
44%
63%
82%
100%
-100%
-40
-5
+25
+55
+85
High
Line
Output Load (% of Rated)
T
A
(°C)
The information provided herein is believed to be reliable; however, C&D TECHNOLOGIES assumes no responsibility for inaccuracies or omissions. C&D TECHNOLOGIES assumes
no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change without notice.
No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. C&D TECHNOLOGIES does not authorize or warrant any C&D TECHNOLOGIES
product for use in life support devices/systems or in aircraft control applications.
Page 4
WP05R 5/98 REV B
京公网安备 11010802033920号
EEWORLD
