HDM25-D Datasheet, PDF (1/2 Pages) HITRON ELECTRONICS CORPORTION – PCB-MOUNT DC-DC CONVERTER ENCAPSULATED MODULES INDUSTRIAL GRADE 25 WATTS DUAL OUTPUT

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.
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.)
Transient Response: Max. excursion 140mV,
Temperature: -40°C to +105°C for industrial grade.
Recovery time <200 µSec. @ 25%
step load change.
Case: Black coated copper with non-conductive
metal base.
Power Density: 10.0 Watts. / Cubic inch.
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.
MTBF: 1,000,000 hours to Mil. Std. 217, 25°C.
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-