1500UFR series
www.martekpower.com
FEATURES
Single & Dual Output
DC/DC Converter
• Efficiency up to 86%
• 1500 VDC Isolation
• 4:1 Wide Input Range
• Remote On/Off Control
• UL 1950 and EN 55022 Approved
• >700,000 Hours MTBF
INPUT CHARACTERISTICS
DESCRIPTIONS
Min Typ Max Unit/Comments
The 1500UFR series is a family of 16 models DC/DC
converters designed to address the application needs for
data communication equipment, mobile battery driven equip-
ment, distributed power systems, telecommunications
equipment, mixed analog/ digital subsystems, process/
machine control equipment, computer peripheral systems
and industrial robot systems. In addition to packing up to 15
watts of power into a 2” X 1” X 0.4” package with efficiency up
to 86%, the series also has ultra-wide input ranges of 9-36VDC
and 18-75 VDC, which are available in output voltage of 3.3V, 5V,
5.1V, 12V, 15V, 5V, 12V and 15 VDC.
Start Voltage
24 VDC Input Models
48 VDC Input Models
Input Fuse Requirement
24 VDC Input Models
48 VDC Input Models
Under Voltage Shutdown
24 VDC Input Models
48 VDC Input Models
Reverse Polarity Input
Short Circuit Input Power
Input Filter
8
8.5
9
VDC
VDC
15 17 18
2500
1250
mA; Slow blow type
mA; Slow blow type
7
8
8.5
VDC
13 15 17
VDC
1
3500
Amp
mW
Pi Filter
GENERAL CHARACTERISTICS
OUTPUT CHARACTERISTICS
Min Typ Max Unit/Comments
Min Typ Max Unit/Comments
Switching Frequency
Isolation Voltage
Isolation Resistance
Isolation Capacitance
MTBF (MIL-HBK-217F)
290 330 400
1500
kHz
Output Voltage Set Point
Output Voltage Balance
Line Regulation
1.0 2.0 % Output voltage at
nominal line & FL
0.5 2.0 %; Equal Output
Loads
VDC, 1 minute
Mohm, 500VDC
1000
1200 1500 pF, 100kHz, 1Volt
Million Hours,
0.7
0.1 0.5 % Output voltage
measured from
o
+25 C, Ground
Benign
min. input line to
maximum
Load Regulation
Ripple/Noise
0.5 1.0 % Output voltage
measured from FL
to 10% load
55 80 mV p-p, Nom.Line
@FL, 20MHz B.W.,
using 1 μf bypass
capacitor
Over Power Protection
Transient Response
Deviation
120
%
2
4
% deviation of Vout
for a 25% load change
Transient Recovery Time
300 500 μS for 25% load
change, to within 1%
o
Temperature Coefficient
Ouput Short Circuit
0.01 0.02 % per C
Continuous
Martek Power reserves the right to change specifications without notice.
B-116