鈥?/div>
HALT TESTED
HEC50-S 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. Remote sense and
remote on/off facilities are included as standard, and the converters are
comprehensively protected against over-current, over-voltage and over-temperature
conditions. The HEC50 converters are especially suited to telecom, networking and
industrial application.
UL E193009
TUV R50020744
CB JPTUV-5363
CE MARK
T E C H N I C A L S P E C I F I C AT I O N
OUTPUT SPECIFICATIONS
Output power
Voltage accuracy
Full load and nominal Vin
All specifications are typical at nominal input, full load and 25潞C otherwise noted
GENERAL SPECIFICATIONS
50 Watts max
鹵 1.5%
+ 10% , -20%
0%
Isolation voltage
Isolation resistance
Isolation capacitance
Switching frequency
Approvals and standard (Note 5)
Case material
Weight
MTBF
Bellcore TR-NWT-000332, Tc=40
, Io=80%, max.
Efficiency
Input to Output
Input to Case
Output to Case
See table
1600 VDC, min.
1000 VDC, min.
1000 VDC, min.
10 ohms, min
2500 pF, max
300 KHz, typ
IEC60950, UL60950, EN60950
Open with Aluminum base-plate
50g (1.76 oz)
3 x 10
6
hrs
7
Voltage adjustability (Note 1)
Minimum load
Line regulation
Load regulation
Remote sense (Note 1)
Ripple and noise(Note 2) 20MHz bandwidth
Temperature coefficient
Transient response
recovery time
25% load step change
LL to HL at FL
0% to 100% FL
See table
See table
10% of Vout
100mVp-p
I0.02%
/ 潞C, max
200uS
115% ~ 130% of Vout
110% ~ 140% of Iout Rated
Hiccup, automatics recovery
Over voltage protection threshold (Hiccup)
Over current protection threshold
Short circuit protection
ENVIRONMENTAL SPECIFICATIONS
Operating base-plate temperature range (Note 6)
Over temperature protection
Humidity max, Non-condensing
-40潞C to +100潞C
110潞C
95%
-55潞C to +125潞C
MIL-STD-810D
10~55Hz, 2G, 3minutes period, 30minutes along X,Y and Z
INPUT SPECIFICATIONS
24V input
48V input
24V input
UVLO start-up voltage
48V input
24V input
UVLO shuntdown voltage
48V input
Input voltage range
Input filter (Note 3)
Input voltage variation
dv/dt
18 鈥?36VDC
36 鈥?75VDC
17V typ.
34V typ.
15V typ.
32V typ.
L-C type
Storage temperature range
Thermal shock
Vibration
EMC CHARACTERISTICS
Conducted emissions
Radiated emissions
ESD
Radiated immunity
Fast transient
Surge
Conducted immunity
EN55022 (Note 7)
EN55022 (Note 7)
EN55022
EN61000-4-2
EN61000-4-3
EN61000-4-4
EN61000-4-5
EN61000-4-6
Level A
Level B
Level A
Perf. Criteria2
Perf. Criteria2
Perf. Criteria2
Perf. Criteria2
Perf. Criteria2
5V/ms,max
(Complies with ETS300 132 part 4.4)
50VDC
24V input
Input surge voltage 100mS max
100VDC
48V input
Nominal Vin and constant
Start up time
25mS typ.
resistive load
Input reflected-ripple current
24V input
50mAp-p
(5Hz to 20 MHz, 12uH source impedance) 48V input
20mAp-p
Remote ON/OFF(Note 4)
(Positive logic)
(Negative logic)
ON=Open or 3.5V < Vr < 15V, I
IN
=50
max.
OFF=Short or 0V < Vr < 1.2V, I
IN
=1m max.
ON=Short or 0V < Vr < 1.2V, I
IN
=1m max.
OFF=Open or 3.5V < Vr < 15V, I
IN
=50
max.
1
2
