Specifications typical at TA=25°C, nominal input voltage, rated output current unless otherwise stated.
MODEL
NOMINAL
RATED OUTPUT
INPUT
OUTPUT
(V
DC
)
VOLTAGE (V
DC
)
24
24
24
24
24
24
24
24
48
48
48
48
48
48
48
48
3.3
5.0
12.0
15.0
3.3 + 12
3.3 + 15
5 + 12
5 + 15
3.3
5.0
12.0
15.0
3.3 + 12
3.3 + 15
5 + 12
5 + 15
OUTPUT CURRENT
NOM LOAD (A)
9.0
6.0
2.5
2.0
6.0 + 0.417
6.0 + 0.333
4.0 + 0.417
4.0 + 0.333
9.0
6.0
2.5
2.0
6.0 +
6.0 +
4.0 +
4.0 +
INPUT CURRENT
NOM LOAD (A)
MAX LOAD (A)
11.0
7.5
3.0
2.4
7.5 + 0.521
7.5 + 0.416
5.0 + 0.521
5.0 + 0.416
11.0
7.5
3.0
2.4
7.5 + 0.521
7.5 + 0.521
5.0 + 0.521
5.0 + 0.416
1.488
1.488
1.471
1.471
1.506
1.506
1.488
1.488
0.727
0.727
0.718
0.718
0.735
0.735
0.727
0.727
84
84
85
85
83
83
84
84
86
86
87
87
85
85
86
86
EFFICIENCY
%
MIN LOAD (A)
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
WF30R24S03
WF30R24S05
WF30R24S12
WF30R24S15
WF30R24T312
WF30R24T315
WF30R24T512
WF30R24T515
WF30R48S03
WF30R48S05
WF30R48S12
WF30R48S15
WF30R48T312
WF30R48T315
WF30R48T512
WF30R48T515
0.417
0.333
0.417
0.333
COMMON SPECIFICATIONS
Specifications typical at TA=25 C, nominal input voltage, rated output current unless otherwise stated.
PARAMETER
INPUT
Voltage Range
Reflected Ripple Current
INPUT CONTROL
Temperature Shutdown
Temperature Hysteresis
Quiescent Standby Current
Undervoltage Shutdown
Undervoltage Hysteresis
ISOLATION
Rated Voltage
Test Voltage
Resistance
Capacitance
Leakage Current
OUTPUT
Rated Power
Voltage Setpoint Accuracy
Single & Main Outputs
Aux. Outputs, Triples
Temperature Coefficient
Line Regulation
Single & Main Outputs
Aux. Outputs, Triples
Load Regulation
Single & Main Outputs
Aux. Outputs, Triples
Ripple & Noise
Single & Main Outputs
Aux. Outputs, Triples
Output Adjust Range
Short Circuit and Overcurrent Protection
Single & Main Output
GENERAL
Switching Frequency
MTTF per ML-HDBK-217
Ground Benign
Package Weight
TEMPERATURE
Operation/Specification
Storage
Shutdown Temperature
Thermal Impedance, case-ambient
CONDITIONS
WF30R24xxyzz
WF30R48xxyzz
MIN
9
18
TYP
24
48
50
107
5
8
7.5
16.5
1
1
1500
1500
10
1000
V
ISO
=240V
AC
, 60Hz
100
30
+1.5
+3.0
MAX
36
75
75
UNITS
V
DC
V
DC
mA
°C
°C
mA
V
V
V
V
V
DC
Vpk
GΩ
pF
µArms
W
%
%
%/°C
%
%
%
%
mVpk-pk
mVpk-pk
%
A
KHz
Hr
g
+100
+110
+110
7
°C
°C
°C
°C/W
°
Current Into + V
IN
WF30R24xxyzz
WF30R48xxyzz
WF30R24xxyzz
WF30R48xxyzz
10
60Hz, 10 Seconds
±
0.2
High Line to Low Line
±
0.1
±
0.7
±
0.4
±
0.6
50
80
±
10
80
120
±
12
7.5
300
Min Load to Nom. Load
Mn Load to Nom. Load
BW = 5Hz to 20MHz
BW = 5Hz to 20MHz
All Outputs
Circuit Stress Method
TA = +25° Unmodified Database
1,500,000
85
-40
-55
+105
Case Temperature
Case Temperature
Case Temperature
Page 2
WF30R 11/98 REV A
ORDERING INFORMATION
WF30R
xxyzz
Device Family
Indicated 30 Watt Regulated DC/DC Converter
Model Number
Selected from Table of Electrical Characteristics
Where:
xx = Input Voltage
y = Number of Outputs (Single “S”, Triple “T”)
zz = Output Voltage
Shell Connection
(C,F,M,N,P) refer to NOTES.
Remote On/Off Logic
Positive Logic - No Number
Negative Logic - 1
-
NOTES:
A “C” designator indicates the aluminum shell is connected internally to the common
output return pin.
An “F” designator indicates the aluminum shell is floating and is not connected to any
part of the converter circuitry.
An “M” designator indicates the aluminum shell is connected internally to the main
output return pin.
An “N” designator indicates the aluminum shell is connected internally to the negative
input voltage pin.
A “P” designator indicates the aluminum shell is connected internally to the positive
input voltage pin.
MECHANICAL
TOP VIEW
(6.34)
PIN CONNECTIONS
WF30Rxxyzz
PIN #
1
2
3
4
5
6
7
8
SINGLE
Remote On/Off
+Vin
-Vin
-Sense
+Sense
Com
+Vout
Adj
TRIPLE
Remote On/Off
+Vin
-Vin
-Aux
+Aux
Com
+Vout
Adj
(61.04 + 0.13)
(76.14 + 0.13)
NOTES:
All dimensions are in inches (millimeters).
SIDE VIEW
(63.45)
(50.76)
(6.29)
(0.51)
(12.69)
Pin placement tolerance: +0.015” (+0.2mm)
Threaded insert (hex) for fixing to PCB.
Marked with specific model ordered, date, code,
job code.
MATERIAL: Units are enclosed in an aluminum
case. Lead material is brass with a solder plated
surface to allow ease of solderability.
(20.30)
(40.60)
(10.15)
THREADED INSERT
(20.30)
(12.69)
(1.52)
BOTTOM VIEW
(12.18 + 0.13)
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.
WF30R 11/98 REV A
Page 3
PERFORMANCE GRAPHS
EFFICIENCY VS. OUTPUT LOAD
90
85
15V
12V
5V
3V
10
10
EFFICIENCY VS. TEMPERATURE
Change in Efficiency (%)
EFFICIENCY (%)
80
75
70
65
60
55
50
10
20
40
50
60
80
100
5
5
100% Load
0
0
20% Load
-5
-5
-10
-10
-40
-15
25
65
110
Output Load (% or Rated)
Tcase (C)
50%Load
10%Load
100%Load
0.6
EFFICIENCY VS. INPUT VOLTAGE
OUTPUT RIPPLE VS. INPUT VOLTAGE
1.4
CHANGE IN EFFICIENCY (%)
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-1
LL
Nom
Normalized Output Ripple
HL
1.2
1
0.8
0.6
Vin
0.4
LL
Nom
Vin
HL
TRIM RESISTOR VS. OUTPUT VOLTAGE CHANGE
50
45
5
5
3 -trim +trim
OUTPUT RIPPLE VS. TEMPERATURE
1.2
40
Trim Resistor (K Ohms)
35
30
25
20
15
10
5
0
10
9
8
7
6
5
4
3
2
1
Normalized Output Ripple
1
0.8
0.6
-40
-15
25
65 110
Percentage Change In Output Voltage
Tcase (C)
TRIM RESISTOR VS. OUTPUT VOLTAGE CHANGE
12
15+trim
15
15 -trim
12
15
+trim -trim trim
THERMAL DERATING CURVE
Percentage of Rated Output Load (%)
100
80
60
40
20
0
Ambient
Case
100
90
Trim Resistor (K Ohms)
80
70
60
50
40
30
20
10
0
10
9
8
7
6
5
4
3
2
1
-40
0
85
95
100
105
Temperature (C)
110
115
120
130
Percentage Change In Output Voltage
HYSTERESIS GRAPH
Undervoltage Lockout Threshold Voltages
Nominal Input
Voltage Range
24
48
Shutdown Low
Voltage (V1)
OFF
7.5
16.5
Shutdown High
Voltage (V2)
ON
8.5
17.5
Specifications typical at TA=25°C, rated output current.
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