H HiTRON
PCB-MOUNT DC-DC CONVERTER ENCAPSULATED MODULES
INDUSTRIAL GRADE 25 WATTS DUAL OUTPUT HDM25-D SERIES
FEATURES:
DUAL OUTPUT
2:1 INPUT RANGE
25W ISOLATED OUTPUT
SIX-SIDED METAL SHIELD
SPECIFICATION
INPUT SPECIFICATION
Input Range:
2:1 DC input range:
4.5-9/9-18/18-36/36-72Vdc.
Input Voltage:
Nominal 5/12/24/48Vdc.
Input Current:
Various with input range and load.
Input Fuse:
Use external fuse.
Input Filter:
Pi-Network.
Input Reflect Ripple Current:
45mA typical.
Isolation Resistor:
1,000 Mega Ohms.
Isolation Voltage:
1,500Vdc.
EMI:
Six-sided metal shielding.
Remote On/Off:
TTL/CMOS-Compatible Input Control.
Positive Logic
version for Standard set up:
ON(Enable)=Open(or
2.5-5.0Vdc above-Vin)
OFF(Disable)=Short(or
0-0.8Vdc above-Vin)
Negative Logic
version option available by adding a
“N”suffix
to the end of Model #.
Remark: Voltage refer to –Input(-Vin).
OUTPUT SPECIFICATION
Output Voltage:
See Ratings Chart.
Output Current:
See Ratings Chart.
Voltage Accuracy:
Main O/P ±2.0 % typical.
Line Regulation:
± 0.06% typical.
Load Regulation:
VO1 ±0.60 %, VO2 ±0.5% typical.
Noise & Ripple:
1.0% typical.
OVP:
Built-in on main output VO1.
Adjustability:
VO1 O/P may optionally be external
trimmed ±3.0% with a fixed resistors or trim-pot.
Short Circuit Protection:
Power fold back, and self-recovering.
Overload Protection (OLP):
Fully protected against output overload and short circuit.
OLP set at about 125-150% rating output wattage.
Consult the factory for OLP setting.
GENERAL SPECIFICATION
Efficiency:
77-85% typical, various with input.
Switching Frequency:
Fixed frequency 450K Hz.
Circuit Topology:
450K Hz. Forward Circuit.
Transient Response:
Max. excursion 140mV,
Recovery time <200 µSec. @ 25%
step load change.
Case:
Black coated copper with non-conductive
metal base.
Power Density:
10.0 Watts. / Cubic inch.
MTBF:
1,000,000 hours to Mil. Std. 217, 25°C.
Operating Temperature: Industrial Grade
-25°C to
+85°C range. 0°C to+70°C @ full load without derating.
From+70°C derating linearly to half load @ +85°C.
(Refer to the Derating Chart for commercial grade.)
Temperature:
-40°C to
+105°C
for industrial grade.
Temperature Coefficient:
± 0.03% /°C.
Humidity:
Up to 95%RH, Non-condensing.
Cooling:
Convection cooling up to+70°C @full load.
At least 100LFM moving air is recommended for
full load >+71°Cin a confined area.
Industrial Grade for 12B/24B/48B input.
Commercial Grade only for 5B input.
NOTE:
(1) All measurements are at nominal input, full load, and +25°C unless otherwise specified.
(2) Line Regulation measured from High to Low Lines at full load.
(3) Load Regulation measured from Full Load to 1/2 Full Load at nominal input.
(4) Correct fuse size by calculating the max. DC current drains at low Line input & Load and then adding 20-25% for the desired fuse size.
Due to requests in market and advances in technology, specifications subject to change without notice.
-25-
HITRON [ HITRON ELECTRONICS CORPORTION ]
