200WFS series
Single & Dual Output
DC/DC Converter
F
EATURES
•
•
•
•
•
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www.martekpower.com
Miniature “Gull-wing” SMT Package
1000 VDC Input/Output Isolation
High Efficiency
Wide Operating Temperature Range
MTBF > 2,000,000 Hours
Low Cost
D
ESCRIPTIONS
The 200WFS series is a family of cost effective 2 watt single
and dual output DC/DC converters in ultra-miniature “gull-
wing” SMT packages. 13 models operate from input bus
voltages of 5V, 12V and 24V; producing output voltage levels
of 5V, 12V, ±5V, ±12V and ±15V for a wide choice.
The 200WFS series is ideal for a variety of applications
including distributed power systems, mixed analog / digital
subsystems, portable test equipment, local power networks
and battery backed systems.
I
NPUT
C
HARACTERISTICS
Min Typ Max Unit/Comments
Input Voltage
5 VDC Input Models
VDC
4.5 5 5.5
12 VDC Input Models 10.8 12 13.2
VDC
24 VDC Input Models 21.6 24 26.4
VDC
Input Fuse Requirements
5 VDC Input Models
mA; Slow blow type
1000
12 VDC Input Models
mA; Slow blow type
500
24 VDC Input Models
mA; Slow blow type
200
Reverse Polarity Input
A
0.3
Current
Input Filter
Internal Capacitor
O
UTPUT
C
HARACTERISTICS
Output Voltage Set Point
Output Voltage Balance
(Duals)
Line Regulation
Min Typ Max Unit/Comments
±1.5 ±4.0 % Output voltage at
nominal line & FL
±0.1 ±1.0 % Equal Output
Loads
±1.2 ±1.5 % Change /
Percentage change
in Input
voltage
Measured from
See Model
Selection Chart Full Load to
20% load
100 120 mV p-p, Nom.Line
@FL, 20MHz B.W.,
using 1
μf
bypass
capacitor
200 mV p-p, Over Line,
Load & Temp., 20
MHz B.W.,
using 1
μf
bypass
capacitor
%Rated Output Load
120
0.5 Second
±0.01 ±0.02 % per degree C
G
ENERAL
C
HARACTERISTICS
Switching Frequency
Isolation Voltage
Isolation Resistance
Isolation Capacitance
MTBF (MIL-HBK-217F)
Min Typ Max Unit/Comments
kHz
50 100 120
VDC, 60 sec
1000
Mohm, 500VDC
1000
60 120 pF, 100kHz, 1Volt
Thousand Hours,
2000
+25
o
C, Ground
Benign
Load Regulation
Ripple/Noise
Ripple/Noise
Overload Protection
Short Circuit Protection
Temperature Coefficient
Martek Power reserves the right to change specifications without notice.
B-33
E
NVIRONMENTAL
S
PECIFICATIONS
Operating Temp. Range
Operating Temp. Range
Storage Temp. Range
Relative Humidity
Cooling
Min
-40
-40
-40
Typ Max
+85
+90
+125
95
Unit/Comments
o
C; Ambient
o
C; Case
o
C
% Humidity; non-
condensing
Free-Air Convection
P
HYSICAL
C
HARACTERISTICS
Case Size (Single)
Case Size (Dual)
Case Material
Flammability
Weight
Unit/Comments
0.50 X 0.36 X 0.35 inches
(12.8 X 9.3 X 8.9 mm)
0.60 X 0.36 X 0.35 inches
(15.3 X 9.3 X 8.9 mm)
Molding
UL94V-0
1.5 Grams (Single)
2.2 Grams (Dual)
O
UTLINE
D
RAWING
S
INGLE
O
UTPUT
8
0.04(1.2)
0.101(2.57)
mm
1.
0
1
2
4
0.5(12.7)
0.37(9.3)
0.1(2.54)
0.1
0.1
(2.54)
(2.54)
0.2
(5.08)
0.6(15.24)
0.04(1.2)
0.1
0.1
(2.54)
(2.54)
0.2
(5.08)
0.1
(2.54)
5
0.36(9.3)
0.5(12.75)
0.04(1.2)
0.48(12.4)
0.04(0.1)
0.100 0.100 .200
(2.54) (2.54) (5.08)
0.50(12.7)
0.36(9.3)
0.35(8.9)
SEATING
PLANE
S
0 ~4
0.01(0.25)
(2.0)
.07
0.26(6.7)
0.34(8.7)
0.35(8.9)
.023(0.6)
0.48(12.4)
0.08(2.25)
0.33(8.6)
0.39(10.0)
0.46(11.8)
.05(0.15)
D
UAL
O
UTPUT
10
0.04(1.2)
0.101(2.57)
mm
1.0
1
0.100
(2.54)
7
0.36(9.3)
0.5(12.7)
0.37(9.3)
2
.200
(5.08)
4
0.100
(2.54)
5
0.04(0.1)
0.60(5.3)
0.48(12.4)
0.26(6.7)
0.34(8.7)
0.35(8.9)
0.36(9.3)
0.35(8.9)
.06(1.70)
SEATING
PLANE
S
0 ~4
0.01(0.25)
(2.0)
.07
0.08(2.25)
.023(0.6)
0.58(14.8)
0.33(8.6)
0.39(10.0)
0.46(11.8)
P
IN
O
UT
C
HART
Pins
1
2
4
5
7
8
10
Single
- Vin
+ Vin
- Vout
+ Vout
No Pin
NA
No Pin
Dual
- Vin
+ Vin
Common
- Vout
+ Vout
No Pin
NA
.05(0.15)
Notes:
1. Unless otherwise specified dimensions are in inch (mm).
Tolerances
Inches
mm
X.XX = ±0.02
X.X = ±0.5
X.XXX= ±0.010
X.XX = ±0.25
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-34
0.1(2.54)
.06(1.70)
Embedded System
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