www.martekpower.com
2500 HN series
FEATURES
Single Output
DC/DC Converter
• Up to 87% Efficiency
• Single Output, 25 watt converter
• Available in 12, 24 and 48 VDC Inputs
• Industry Standard 2” X 1.6” X 0.4” Package
• Output Over Voltage, Input Over Voltage & Short Circuit Protection
INPUT CHARACTERISTICS
Units/Comments
Min Typ Max
Input Voltage
DESCRIPTIONS
12 VDC Input Models
24 VDC Input Models
48 VDC Input Models
Under Voltage Shutdown
12 VDC Input Models
24 VDC Input Models
48 VDC Input Models
Over Voltage Shutdown
12 VDC Input Models
24 VDC Input Models
48 VDC Input Models
Full Load Input Current
12 VDC Input Models
24 VDC Input Models
48 VDC Input Models
Input Fuse Requirements
12 VDC Input Models
24 VDC Input Models
48 VDC Input Models
Efficiency by Model
2503S12HN
VDC
VDC
VDC
9
12 18
18 24 36
36 48 75
The 2500HN, single output power modules are 16 to 25 watt
DC/DC converters available in a single output configuration
providing 3.3 VDC to 15 VDC outputs in a compact, industry
standard 2.0" X 1.6" X 0.4" package. These 400kHz, switching
converters are available in 12, 24 and 48 VDC inputs making
them one of the most versatile product lines in the market
with efficiencies up to 87%. Advanced surface mount
construction allows these converters to achieve outstand-
ing thermal performance eliminating the need for thermal
potting compounds and thereby enhancing manufacturing
efficiency to reduce costs.
VDC
VDC
VDC
8
17
33
VDC
VDC
VDC
20
40
80
A
A
A
2.1
1.26
0.62
OUTPUT CHARACTERISTICS
Amps; Slow blow type
Amps; Slow blow type
Amps; Slow blow type
7
4
2
Min Typ Max
Unit/Comments
% Output voltage at
nominal line & FL
% Output voltage
including line/load
regulation setting
% Output voltage
measured from
min. input line to
maximum
1
Output Voltage Set Point
Total Band Error
%; FL Nominal Line
%; FL Nominal Line
%; FL Nominal Line
%; FL Nominal Line
%; FL Nominal Line
%; FL Nominal Line
%; FL Nominal Line
%; FL Nominal Line
%; FL Nominal Line
%; FL Nominal Line
%; FL Nominal Line
%; FL Nominal Line
kHz; Factory set
VDC;Referenced to
input ( - )
78
-2
+2
2505S12HN
80
2512S12HN
82
2515S12HN
84
2503S24HN
79
0.5
Line Regulation
Load Regulation
2505S24HN
83
2512S24HN
86
2515S24HN
87
2503S48HN
80
0.5
% Output voltage
measured from FL
to 10% load
2505S48HN
84
2512S48HN
86
87
2515S48HN
0.01
60 100
Switching Frequency
Remote Shut Down Off
360 400 440
Temperature Coefficient
Ripple/Noise
% per degree C
mV p-p measured
at 20 MHz bandwidth
with ext. 1 μf cap.
Refer to model
0
0.80
On
VDC or open;Referenced
to input ( - )
3.5
Output Voltage and Current
Load Transient Response
Input - Output Capacitance
Input Filter
Isolation Voltage
pF
LC type
1000
selection chart
2
% Deviation of Vout
voltage for a 25%
load change for
12 VDC & 24 VDC Input Models
Input to Output
VDC
VDC
VDC
750
750
750
200μS
Indefinite, Automatic
Recovery
% Output voltage.
Place ext. resistor
between pins 8 - 6 to
trim down. Between
pins 8 - 7 to trim up.
%; Clamp type (5VDC
output set at 6.8VDC)
Input to Baseplate
Output to Baseplate
48 VDC Input Models
Input to Output
Input to Baseplate
Output to Baseplate
Isolation Resistance
Short Circuit Protection
VDC
1100
1100
750
10
Output Voltage Trim Range
VDC
VDC
MOHms
100
125
Overvoltage Protection
Martek Power reserves the right to change specifications without notice.
>> B-177
1111 Knox Street Torrance CA 90502 USA Tel: +1 310 202 8820 sales@martekpower.com