200LFR series
Single & Dual Output
DC/DC Converter
F
EATURES
•
•
•
•
•
www.martekpower.com
Up to 81 % Efficiency
Single and Dual Output, 2 watt converter
Available in 5, 12, 24 and 48 VDC Inputs
Industry Standard Pinout
Short Circuit Protection
D
ESCRIPTIONS
The 200LFR series 2 watt power modules are specially
designed to provide low output ripple, and tight regulation in
a low-profile 16 pin DIP package. The series consists of 28
models with input voltages of 5V, 12V, 24V and 48V, and offers
regulated output voltages of 3.3V, 5V, 12V, 15V, ±5V, ±12V and
±15V.
The -40
o
C to +65
o
C operating temperature range makes it
ideal for data communication equipment, mobile battery
driven equipment, distributed power systems, telecommu-
nication equipment, mixed analog/digital subsystems, auto-
matic test instrumentation and industrial robot systems.
I
NPUT
C
HARACTERISTICS
Min Typ Max Unit/Comments
Input Voltage
5 VDC Input Models
4.5 5
9
12 VDC Input Models
9
12 18
24 VDC Input Models
18 24 36
48 VDC Input Models
36 48 72
Input Fuse Requirements
5 VDC Input Models
1000
12 VDC Input Models
500
24 VDC Input Models
250
48 VDC Input Models
120
Reverse Polarity Input Current
1.0
Input Filter
VDC
VDC
VDC
VDC
mA; Slow blow type
mA; Slow blow type
mA; Slow blow type
mA; Slow blow type
Amp
Pi Filter
O
UTPUT
C
HARACTERISTICS
Output Voltage Set Point
Output Voltage Balance
(Duals)
Line Regulation
Min Typ Max Unit/Comments
±2.0 % Output voltage at
nominal line & FL
±1.0 ±3.0 % Equal Output
Loads
±0.2 ±0.5 % Output voltage
measured from
min. input line to
maximum
±0.75 % Output voltage
measured from FL
to 25% load
75 mV p-p, Over Line,
Load & Temp., 20
MHz B.W.,
using 1
μf
bypass
capacitor
%Rated Output Load
120
Continuous,
Automatic Recovery
±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
300
VDC, 1 minute
1500
Mohm, 500VDC
1000
250 420 pF, 100kHz, 1Volt
Million Hours,
1
+25
o
C, Ground
Benign
Load Regulation
Ripple/Noise
Overload Protection
Short Circuit Protection
Temperature Coefficient
Martek Power reserves the right to change specifications without notice.
B-25
E
NVIRONMENTAL
S
PECIFICATIONS
Operating Temp. Range
Storage Temp. Range
Relative Humidity
Cooling
Min
-40
-40
Typ Max
+65
+125
95
Unit/Comments
o
C; Ambient
o
C
% Humidity; non-
condensing
Free-Air Convection
P
HYSICAL
C
HARACTERISTICS
Case Size
Case Material
Flammability
Weight
Unit/Comments
0.94 X 0.54 X 0.3 inches
(23.9 X13.7 X 7.6 mm)
Non-Conductive Black Plastic
UL94V-0
5.1 Grams
O
UTLINE
D
RAWING
0.94 (23.9)
SIDE VIEW
0.02
(0.5)
0.3
(7.6)
0.02(0.5) PIN DIA.
6 PLACES
0.15 (3.8)
6 PLACES
2X 0.1(2.5)
1
7
8
0.4 0.54
10.2 13.7
9
BOTTOM VIEW
16
10
P
IN
O
UT
C
HART
Pins
1
7
8
9
10
16
SINGLE
- V in
NC
NC
+ V out
- V out
+ V in
Dual
- Vin
NC
Common
+V out
- V out
+V in
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.
Capacitor mounted close to the power module helps ensure stability of the unit, it is
recommended to use a good quality low ESR capacitor of 2.2mF for the 5V input devices, a
1.0mF for the 12V input devices and a 0.47mF for the 24V and 48V devices.
B-26
微控制器 MCU
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