HEC50 SERIES
50 WATTS DC-DC CONVERTER
FEATURES
• 50 WATTS MAXIMUM OUTPUT POWER
• SINGLE OUTPUT UP TO 15A
• COMPACT 2.40 X 2.28 X 0.50 INCH PACKAGE
• HIGH EFFICIENCY UP TO 91%
• INPUT RANGE FROM 18VDC TO 36VDC AND 36VDC TO 75VDC
• FIXED SWITCHING FREQUENCY(300kHz)
• HALT TESTED
• INDUSTRY STANDARD FOOTPRINT
• ADJUSTABLE OUTPUT VOLTAGE
• NO MINIMUM LOAD REQUIRED
• UNDER-VOLTAGE LOCKOUT
• 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
OPTIONS
Positive logic remote on/off, pin length
APPLICATIONS
Wireless Network
Telecom/Datacom
Industry Control System
Distributed Power Architectures
Semiconductor Equipment
DESCRIPTION
HEC50 single output DC/DC converters provide up to 50 watts of output power in
an industry standard half-brick package and footprint. These units are specifically
designed to meet the power needs of low-voltage silicon. All models feature a wide
input range, trimmable output voltage and a 15A current rating.
T E C H N I C A L S P E C I F I C AT I O N All specifications are typical at nominal input, full load and 25ºC otherwise noted
OUTPUT SPECIFICATIONS
Output power
INPUT SPECIFICATIONS
24VDC nominal input
48VDC nominal input
18 ~ 36VDC
36 ~ 75VDC
50 Watts, max.
1.5%
Input voltage range
Voltage accuracy
Input filter
L-C type
Minimum load
0%
Voltage adjustability (Note 5)
+ 10% , -20%
24VDC input
48VDC input
Nominal input and
constant resistive load
50VDC 100ms, max.
100VDC 100ms, max.
Power up 25ms
Input surge voltage
Start up time
Line regulation
Load regulation
LL to HL at Full Load
No load to Full load
See table
See table
Remote ON/OFF
25ms
50mAp-p
20mAp-p
17VDC
Remote sense (Note 5)
10% of Vout(nom)
Input reflected ripple current 24VDC input
48VDCinput
Ripple and noise (Note 6) 20MHz bandwidth
Temperature coefficient
100mVp-p
0.02% / ºC, max.
200µs
24VDC input
Start-up voltage
48VDC input
24VDC input
Shutdown voltage
34VDC
15VDC
32VDC
Transient response recovery time 25% load step change
Over voltage protection threshold (Hiccup)
Over current protection threshold
Short circuit protection
115% ~ 130% of Vout(nom)
110% ~ 140% of Iout Rated
48VDC input
Remote ON/OFF (Note 7)
(Negative logic)
Continuous, automatics recovery
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
Input current of remote control pin Nominal input -0.5mA ~ 0.5mA
GENERAL SPECIFICATIONS
Efficiency
.
(Positive logic)
See table
1600 VDC, min. 1minute
1000 VDC, min. 1minute
.
Input to Output
Isolation voltage
Input(Output) to Case
500VDC
Remote off state input current
Nominal input
20mA
7
10 ohms, min.
Isolation resistance
ENVIRONMENTAL SPECIFICATIONS
Operating base-plate temperature range (Note 8)
Over temperature protection
Isolation capacitance
Switching frequency
Design meets safety standard
Case material
2500pF, max.
300kHz 10%
-40ºC ~ +100ºC
110ºC
IEC60950-1, UL60950-1, EN60950-1
Open with Aluminum base-plate Humidity max, Non-condensing
95%
Weight
50g (1.76oz)
1.037 x 106 hrs
2.560 x 105 hrs
Storage temperature range
Thermal shock
-55ºC ~ +125ºC
MIL-STD-810F
MIL-STD-810F
BELLCORE TR-NWT-000332
MIL-HDBK-217F
MTBF (Note 1)
Vibration
EMC CHARACTERISTICS
EN55022
EMI (Note 9)
Class A, Class B
Radiated immunity
EN61000-4-3
10 V/m Perf. Criteria A
2kV
1kV
Fast transient (Note 10) EN61000-4-4
Perf. Criteria B
Perf. Criteria B
Surge (Note 10)
EN61000-4-5
EN61000-4-6
Conducted immunity
10 Vr.m.s Perf. Criteria A
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