DC DC
25 30 Watts
WF Series
•
•
•
•
•
•
•
2:1 Input Range
Efficiency to 85%
Input Pi Filter
Single, Dual & Triple Outputs
Remote On/Off
Six sided Metal Case
External Output Trim
xppower.com
Specification
Input
Input Voltage Range
Input Current
Input Filter
Undervoltage Lockout
•
•
•
•
See table
See Table
Pi network
Turn On >70% nominal input
Turn Off <65% nominal input
General
Efficiency
Isolation Voltage
Isolation Resistance
Switching Frequency
MTBF
•
•
•
•
•
See table
500 VDC min (3000 VDC for ‘U’ version)
10
9
ohms min
300 kHz typical
>800 kHrs to MIL-STD-217F
Output
Initial Set Accuracy
• Single output models: ±2% max
Dual output models: ±2% max V1
±3% max V2
Triple output models: ±2% max V1
±5% max V2 & V3
• ±10% (except triple output models)
• Triple output models only
• ±1.0% max at full load
Environmental
Operating Temperature
• -25 ˚C to +100 ˚C (see derating curve)
Storage Temperature
• -40 ˚C to +100 ˚C
EMI/RFI
• Six-sided continuous shield
• ±0.5% max single & dual output models,
±1.0% max triple output models
Load Regulation
• ±1.0% max single & dual output models,
±5.0% max triple output models
Transient Response
• 5% max deviation, recovery to within
1% in 500 µs for a 25% step load change
Ripple & Noise
• 10 mV RMS max
75 mV pk-pk max, 20 MHz BW
Short Circuit Protection
• Continuous, trip & restart (hiccup mode)
with auto recovery
Temperature
• 0.02%/˚C max
Coefficient
Remote On/Off
• On >5.5 VDC or open circuit
Off <1.8 VDC or short to Vin
Output Voltage
Adjustment
Minimum Load
Voltage Balance
Dual Output
Line Regulation
EMC & Safety
Emissions
ESD Immunity
Radiated Immunity
Conducted Immunity
Safety Approvals
• EN55022, level A Conducted
EN55022, level A Radiated
• EN61000-4-2, level 2
Perf Criteria A
• EN61000-4-3 3 V/m
Perf Criteria A
• EN61000-4-6 3 V rms
Perf Criteria A
• UL60950-1 for ‘U’ versions only
Models and Ratings
Input
Voltage
Output
Voltage
3.3
5.0
12.0
15.0
±5.0
±12.0
±15.0
5.0/±12.0
5.0/±15.0
3.3
5.0
12.0
15.0
±5.0
±12.0
±15.0
5.0/±12.0
5.0/±15.0
3.3
5.0
12.0
15.0
±5.0
±12.0
±15.0
5.0/±12.0
5.0/±15.0
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
WF Series
Output
Current
5.00
5.00
2.50
2.00
±2.50
±1.25
±1.00
3.50/±0.31
3.50/±0.25
5.00
5.00
2.50
2.00
±2.50
±1.25
±1.00
3.50/±0.31
3.50/±0.25
5.00
5.00
2.50
2.00
±2.50
±1.25
±1.00
3.50/±0.31
3.50/±0.25
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
DC DC
Input Current
No Load
Full Load
30
30
30
30
35
35
35
35
35
30
30
30
30
30
30
30
30
30
20
20
20
20
25
25
25
25
25
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
1.86
2.67
3.05
3.05
2.67
3.05
3.05
2.64
2.64
0.92
1.34
1.52
1.52
1.34
1.47
1.47
1.32
1.32
0.46
0.66
0.76
0.76
0.66
0.73
0.73
0.65
0.65
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
Efficiency
74%
78%
82%
82%
78%
82%
82%
79%
79%
75%
79%
82%
82%
79%
85%
85%
80%
80%
75%
79%
82%
82%
79%
85%
85%
80%
80%
Model
Number
(1)
WF100
WF101
WF102
WF103
WF104
WF105
WF106
WF107
WF108
WF200
WF201
WF202
WF203
WF204
WF205
WF206
WF207
WF208
WF300
WF301
WF302
WF303
WF304
WF305
WF306
WF307
WF308
9-18 VDC
18-36 VDC
36-72 VDC
Notes
1. For optional UL60950-1 approved product, add suffix ‘ U’ to model number.
Mechanical Details
All dimensions are in inches (mm)
0.40
0.40
0.40
0.40
(10.16) (10.16) (10.16) (10.16)
Weight:
0.15 lbs (66 g) approx.
Case Material:
Black coated copper with non-conductive base.
Pin
PIN CONNECTIONS
Single Output
Dual Output
Remote On/Off
No pin
-V input
+V input
Output trim
-Output
+Output
No pin
Remote On/Off
No pin
-V input
+V input
Output trim
-Output
Common
+Output
Triple Output
Remote On/Off
No pin
-V input
+V input
-Output
Common
+5V Output
+Output
8
7
6
5
BOTTOM VIEW
1.80
(45.7)
2.00
(50.8)
4
3
2
1
1
2
3
4
5
6
7
8
0.90
(22.9)
2.00 (50.8)
0.04 (1.02)
DIA
0.20
(5.1)
Output
Pin No.
7
8&5
8&5
TRIPLE OUTPUT LOADING TABLE
(1)
Current
Voltage
(2)
Minimum
+5
+12 or -12
+15 or -15
0.50 A
0.10 A
0.10 A
Maximum
3.50 A
0.31 A
0.25 A
0.22
(5.6)
min
0.40
(10.2)
Notes
1. Maximum total power from all outputs is limited to 25 W but no output should be allowed to
exceed its maximum current.
2. Minimum current on each output is required to maintain specified regulation.
Application Notes
Derating Curve
100
80
External Output Trimming
PIN 7
10K
PIN 6
TRIM UP
TRIM
DOWN
TRIM
UP/DOWN
Load (%)
60
40
20
0
-20 -10
Output may optionally be externally
trimmed (±10%) with a fixed
resistor 10K or external trimpot
as shown
0
10
20 30 40 50 60
Ambient Temperature (ºC)
70
80
90
100
PIN 5
08-Apr-08
Motor Drive Control（Motor Control）
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EEWORLD
