500WFR series
Single & Dual Output
DC/DC Converter
F
EATURES
•
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•
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www.martekpower.com
Up to 88% Efficiency
Single & Dual Output, 4 to 6 watt converter
2
- 1 Input Range
500 VDC Input / Output Isolation
Short Circuit Protection
Industry Standard Pinout
D
ESCRIPTIONS
The 500WFR series 5 watts power modules are high
efficiency, low profile dc-dc converters that operate over a wide
input voltage range of 4.5 - 9 VDC, 9 - 18 VDC, 18 - 36 VDC and 36
- 72 VDC and provide precisely regulated output voltages of
3.3V, 5V, 12V, 15V, ±5V, ±12V and ±15V.
The -25
o
C to +71
o
C operating temperature range makes it
ideal for data communication equipment, mobile battery
driven equipment, distributed power systems, telecommunication
equipment, mixed analog/digital subsystems, process/
machine control equipment, computer peripheral systems
and industrial robot systems.
I
NPUT
C
HARACTERISTICS
Min Typ Max Unit/Comments
Start Voltage
5 VDC Input Models
12 VDC Input Models
24 VDC Input Models
48 VDC Input Models
Input Fuse Requirements
5 VDC Input Models
12 VDC Input Models
24 VDC Input Models
48 VDC Input Models
Reverse Polarity Input Current
Short Circuit Input Power
Input Filter
4.5
9
18
36
5
12
24
48
3000
1500
700
350
9
18
36
72
VDC
VDC
VDC
VDC
O
UTPUT
C
HARACTERISTICS
Min Typ Max Unit/Comments
±2.0 % Output voltage at
Output Voltage Accuracy
nominal line & FL
±0.5 ±2.0 % Equal Output
Output Voltage Balance
(Duals)
Loads
±0.5 % Output voltage
Line Regulation
measured from
min. input line to
maximum
±0.5 ±1.0 % Output voltage
Load Regulation
measured from FL
to 25% load
100 mV p-p, Nom.Line
Ripple
@FL, 20MHz B.W.,
(5Vout)
1.0 % Vout
Ripple
(12Vout, 15Vout)
Short Circuit Protection
Continuous,
Automatic Recovery
±3
Transient Response Deviation
% deviation of Vout
for a 25% load change
120
Over Power Protection
%
150 300
μS
for 25% load
Transient Recovery Time
change
±0.01 ±0.02 % per degree C
Temperature Coefficient
mA; Slow blow type
mA; Slow blow type
mA; Slow blow type
mA; Slow blow type
A
1
mW
1000 3000
Pi Filter
G
ENERAL
C
HARACTERISTICS
Switching Frequency
Isolation Voltage
Isolation Resistance
Min Typ Max Unit/Comments
kHz
300
VDC, 1 minute
500
Mohm, 500VDC
1000
Martek Power reserves the right to change specifications without notice.
B-53
E
NVIRONMENTAL
S
PECIFICATIONS
Operating Temp. Range
Operating Temp. Range
Storage Temp. Range
Relative Humidity
Cooling
EMI
Min
-25
-25
-40
Typ Max
+71
+95
+100
95
Unit/Comments
o
C; Ambient
o
C; Case
o
C
% Humidity; non-
condensing
Free-Air Convection
EN55022 Class A
P
HYSICAL
C
HARACTERISTICS
Case Size
Case Material
Flammability
Weight
Unit/Comments
1.25 X 0.8 X 0.4 inches
(31.8 X 20.3 X 10.2 mm)
Black Plastic
UL94V-0
16.9 Grams
O
UTLINE
D
RAWING
1.25 (31.8)
SIDE VIEW
0.16 (4.1)
0.020 (0.50)
PIN DIA. TYP.
0.18 (4.5)
0.40
(10.2)
0.100 (2.54)
0.10
(2.5)
2 3
9 10 11
BOTTOM VIEW
23 22
16 15 14
0.600
(15.22)
0.80
(20.3)
P
IN
O
UT
C
HART
Pins
2
3
9
10
11
14
15
16
22
23
Single
- Vin
- Vin
NC
NC
NC
+ Vout
NC
- Vout
+ Vin
+ Vin
Dual
- Vin
- Vin
Common
NC
- Vout
+ Vout
NC
Common
+ Vin
+ Vin
Notes:
1. Unless otherwise specified dimensions are in inches (mm).
Tolerances
Inches
mm
X.XX = ±0.02
X.X = ±0.5
X.XXX= ±0.010
X.XX = ±0.25
Pin :
±0.002
±0.05
NC = No Connection
All specifications are typical at nominal input, nominal load and 25
°
C unless otherwise specified.
External, low ESR, 10 microfarad (minimum) capacitor across output is recommended for operation.
B-54
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