200WFR series
Single Output
DC/DC Converter
F
EATURES
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www.martekpower.com
Up to 80% Efficiency
Single Output, 2 watt converter
Available in 5, 12, 24 and 48 VDC Inputs
Industry Standard Pinout
2:1 Input Range
Short Circuit Protection
D
ESCRIPTIONS
The 200WFR series power modules are low-profile dc/dc
converters that operate over input voltage ranges of 4.5-9VDC,
9-18VDC, 18-36VDC and 36-75VDC and provide precisely
regulated output voltages of 3.3V, 5V and 12V.
The -40
o
C to +85
o
C operating temperature range makes it
ideal for data communiation equipments, mobile battery
driven equipments, distributed power systems, telecommu-
nication equipments, mixed analog/digital subsystems,
process/machine control equipments, computer peripheral
systems and industrial robot systems.
I
NPUT
C
HARACTERISTICS
Min Typ Max Unit/Comments
Input Voltage
5 VDC Input Models
VDC
4.5 5
9
12 VDC Input Models
VDC
9
12 18
24 VDC Input Models
VDC
18 24 36
48 VDC Input Models
VDC
36 48 75
Start Voltage
5 VDC Input Models
VDC
3.5 4 4.5
12 VDC Input Models
VDC
4.5 7
9
24 VDC Input Models
VDC
8
12 18
48 VDC Input Models
VDC
16 24 36
Under Voltage Shut Down
5 VDC Input Models
VDC
3.5 4
12 VDC Input Models
VDC
6.5 8.5
24 VDC Input Models
VDC
11 17
48 VDC Input Models
VDC
22 34
Input Fuse Requirements
5 VDC Input Models
mA; Slow blow type
1500
12 VDC Input Models
mA; Slow blow type
700
24 VDC Input Models
mA; Slow blow type
350
48 VDC Input Models
mA; Slow blow type
135
Reverse Polarity Input Current
1 Amp
Short Circuit Input Power
1500 mW
Input Filter
Capacitor
O
UTPUT
C
HARACTERISTICS
Output Voltage Set Point
Line Regulation
Min Typ Max Unit/Comments
±1.0 ±2.0 % Output voltage at
nominal line & FL
±0.3 ±0.5 % Output voltage
measured from
min. input line to
maximum
±0.5 ±0.75 % Output voltage
measured from FL
to 25% load
30 50 mV p-p, Nom.Line
@FL, 20MHz B.W.,
using 1 uf bypass
capacitor
75 mV p-p, Over Line,
Load & Temp., 20
MHz B.W.,
using 1 uf bypass
capacitor
%Rated Output Load
120
Continuous,
Automatic Recovery
±3 ±5 % deviation of Vout
for a 50% load
change
100 300 uS for 50% load
change
±0.01 ±0.02 % per degree C
Load Regulation
Ripple/Noise
G
ENERAL
C
HARACTERISTICS
Switching Frequency
Isolation Voltage
Isolation Resistance
Isolation Capacitance
MTBF (MIL-HBK-217F)
Min Typ Max Unit/Comments
kHz
100 300 650
VDC, 1 minute
1000
Mohm, 500VDC
1000
65 120 pF, 100kHz, 1Volt
Million Hours,
1
+25
o
C, Ground
Benign
Ripple/Noise
Overload Protection
Short Circuit Protection
Transient Response
Deviation
Transient Recovery Time
Temperature Coefficient
Specifications Are Subject To Change Without Notice
1
R
EMOTE
O
N
/O
FF
C
ONTROL
Typ Max Unit/Comments
<1 VDC or Open Circuit
Supply On
VDC
2.7
Supply Off
0.1 0.2 mA
Device Standby Input Current
-0.4 mA
Control Input Current (On)
1 mA
Control Input Current (Off)
Control Common
Referenced to Negative Input
Min
P
HYSICAL
C
HARACTERISTICS
Case Size
Case Material
Flammability
Weight
Unit/Comments
0.86 X 0.37 X 0.44 inches
(21.8 X 9.3 X 11.2 mm)
Non-Conductive Black Plastic
UL94V-0
4.8 Grams
E
NVIRONMENTAL
S
PECIFICATIONS
Operating Temp. Range
Operating Temp. Range
Storage Temp. Range
Relative Humidity
Cooling
Min
-40
-40
-55
Typ Max
+85
+90
+105
95
Unit/Comments
o
C; Ambient
o
C; Case
o
C
% Humidity; non-
condensing
Free-Air Convection
O
UTLINE
D
RAWING
0.86 (21.8)
SIDE VIEW
0.08 (2.0)
0.1 (2.54)
0.82 (20.8)
1 2 3
0.02 (0.5)
5 6 7 8
0.01 (0.25)
0.2 (5.08)
0.05 (1.25)
P
IN
O
UT
C
HART
Pins
1
2
3
5
6
7
8
Single
- Vin (GND)
+ Vin (VCC)
Remote ON/OFF
NC
+ Vout
- Vout
NC
Notes:
1. Unless otherwise specified dimensions are in inches (mm).
Tolerances
Inches
mm
X.XX = ±0.01
X.X = ±0.25
X.XXX= ±0.01
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 input is recommended for operation.
2
0.37 (9.3)
BOTTOM VIEW
0.13 (3.2)
0.44 (11.1)
0.02 (0.5)
Embedded System
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