HEC75 SERIES
75 WATTS DC-DC CONVERTER
FEATURES
• 75 WATTS MAXIMUM OUTPUT POWER
• SINGLE : OUTPUT CURRENT UP TO 20A
DUAL : TOTAL OUTPUT CURRENT UP TO 15A,
UP TO 100% LOAD IMBALANCE
• COMPACT 2.40 X 2.28 X 0.50 INCH PACKAGE
• HIGH EFFICIENCY UP TO 90%
• INPUT RANGE FROM 36VDC TO 75VDC
• FIXED SWITCHING FREQENCY (300kHz)
• HALT TESTED
• INDUSTRY STANDARD FOOTPRINT
• ADJUSTABLE OUTPUT VOLTAGE,
INDEPENDENTLY REGULATED OUTPUTS
• INPUT TO OUTPUT BASIC INSULATION:1600 VDC
• CE MARK MEETS 2006/95/EC, 2011/95/EC AND 2004/108/EC
• SAFETY MEETS UL60950-1, EN60950-1 AND IEC60950-1
• ISO9001 CERTIFIED MANUFACTURING FACILITIES
• COMPLIANT TO RoHS EU DIRECTIVE 2011/65/EU
APPLICATIONS
Wireless Network
Telecom/Datacom
OPTIONS
Positive remote on/off, pin length
Industry Control System
Distributed Power Architectures
Semiconductor Equipment
DESCRIPTION
HEC75-SERIES DC/DC converters provide up to 75 watts of output power in an
industry standard half-brick package and footprint. All models feature a wide input
range, trimmable output voltage and a 20A current rating (15A for dual output).
T E C H N I C A L
S P E C I F I C
A
T I O N
All specifications are typical at nominal input, full load and 25ºC otherwise noted OUTPUT SPECIFICATIONS
Output power
INPUT SPECIFICATIONS
Input voltage range
Input filter
75 Watts, max.
36 ~ 75VDC
L-C type
Voltage accuracy
1.5%
0%
Minimum load
Input surge voltage
100VDC 100ms,max
25ms
25ms
Single (Note 5)
Dual
+ 10%, -20%
10%
Nominal input and
Start up time
Power up
Remote ON/OFF
Voltage adjustability
constant resistive load
Line regulation
LL to HL at FL
See table
See table
Input reflected-ripple current
Start-up voltage
20mAp-p
Load regulation
Remote sense
No Load to Full Load
Single (Note 5)
34VDC
32VDC
10% of Vout(nom)
100mVp-p
Shutdown voltage
Ripple and noise
Temperature coefficient
20MHz bandwidth (Note 6)
Remote ON/OFF (Note 7)
(Negative logic)
ON=Short or 0V < Vr < 1.2V, IIN=1mA max.
OFF=Open or 3V < Vr < 15V, IIN=50µA max.
ON=Open or 3V < Vr < 15V, IIN=50µA max.
OFF=Short or 0V < Vr < 1.2V, IIN=1mA max.
0.02% / ºC, max.
Transient response recovery time 25% load step change
Over voltage protection threshold
(Non-latching Hiccup)
200µs
(Positive logic)
115% ~ 130% of Vout(nom)
Input current of remote control pin
Remote off state input current
Nominal input
Nominal input
-0.5mA ~ 0.5mA
20mA
Maximum total output current I 1 + I 2 Dual
15A
Over current protection threshold
110% ~ 140% of Iout Rated
ENVIRONMENTAL SPECIFICATIONS
Operating base-plate temperature range (Note 8)
Over temperature protection
Humidity max, Non-condensing
Storage temperature range
Thermal shock
Short circuit protection
Continuous, automatics recovery
-40ºC ~ +100ºC
+110ºC
GENERAL SPECIFICATIONS
Efficiency
See table
95%
Input to Output
Isolation voltage
1600 VDC, min. 1minute
1000 VDC, min. 1minute
Input(Output) to Case
-55ºC ~ +125ºC
MIL-STD-810F
MIL-STD-810F
7
10 ohms, min.
Isolation resistance
Isolation capacitance
Switching frequency
Design meets safety standard
Case material
500VDC
2500pF, max.
300kHz 10%
Vibration
IEC60950-1, UL60950-1, EN60950-1
Open with Aluminum base-plate
EMC CHARACTERISTICS
EMI (Note 9)
EN55022
Class A, Class B
Single
Dual
63g (2.22oz)
70g (2.47oz)
Weight
Radiated immunity
EN61000-4-3
10 V/m Perf. Criteria A
BELLCORE TR-NWT-000332 Single 9.370 x 106 hrs
2kV
1kV
Fast transient (Note 10) EN61000-4-4
Perf. Criteria B
Perf. Criteria B
Dual
Single 2.170 x 105 hrs
Dual
1.080 x 105 hrs
1.300 x 105 hrs
MTBF (Note 1)
Surge (Note 10)
EN61000-4-5
EN61000-4-6
MIL-HDBK-217F
Conducted immunity
10 Vr.m.s Perf. Criteria A
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