QEB125 Datasheet, PDF (1/2 Pages) List of Unclassifed Manufacturers – SINGLE OUTPUT

• SINGLE OUTPUT UP TO 35A
• INDUSTRY STANDARD FOOTPRINT
• NO MINIMUM LOAD
• ADJUSTABLE OUTPUT VOLTAGE
• UNDER-VOLTAGE LOCKOUT
• HIGH EFFICIENCY UP TO 90%
• COMPACT 2.28 X 1.45 X 0.50 INCH PACKAGE
• FIXED SWITCHING FREQUENCY
UL E193009
TUV R50020744
CB JPTUV-5363
CE MARK
QEB125 single output DC/DC converters provide up to 125 watts of output power in
an industry standard quarter-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 35A 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 QEB125 converters are especially suited to telecom, networking and
industrial application.
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
125 Watts max
Voltage accuracy
Full load and nominal Vin
± 1.5%
Voltage adjustability (Note1)
+ 10% , -20%
Minimum load
None
Line regulation
LL to HL at FL
±0.2%
Load regulation
No load to Full load
See table
Remote Sense
10% of Vout
Ripple and noise
20MHz bandwidth (Measured
with a 1uF M/C and a 10uF T/C)
100mVp-p
Temperature coefficient
I0.02% / ºC, max
Transient response recovery time 25% load step change
200uS
Over voltage protection
threshold(Non-latching Hiccup)
Over Current Protection threshold
120% Vout max
110% ~ 140% of lout Rated
Short circuit protection
Hiccup, automatics recovery
INPUT SPECIFICATIONS
Input voltage range
Under voltage lockout
Input filter (Note 2)
48V nominal input
Power up
Power down
36 – 75VDC
34V typ.
32V typ.
L-C type
Input surge voltage 100mS max
Start up time
Nominal Vin and
constant resistor load
Power up
Remote ON/OFF
100VDC
25mS typ
25mS typ
Remote ON/OFF (Note3)
(Negative logic)
(Positive logic)
DC-DC
DC-DC
DC-DC
DC-DC
ON
OFF
ON
OFF
ION/OFF = 1mA max
Short or 0V < Vr < 1.2V
Open or 3.5V < Vr < 15V
Open or 3.5V < Vr < 15V
Short or 0V < Vr < 1.2V
GENERAL SPECIFICATIONS
Efficiency
Isolation voltage
Isolation resistance
Input to Output
Input to Case
Output to Case
Isolation capacitance
See table
1600VDC,min
1000VDC,min
1000VDC,min
10⁷ ohms, min
2500 pF, max
Switching frequency
270 KHz, typ
Approvals and standard
IEC60950, UL60950, EN60950
Case material
Aluminum base plate
Weight (approx)
42g (1.46 oz)
MTBF Bellcore TR-NWT-000332, Tc=40 ºC , Io=80%,max 2.5 x 10⁶ hrs
ENVIRONMENTAL SPECIFICATIONS
Operating base-plate temperature range (Note 4)
-40ºC to +100ºC
Over temperature protection
110ºC, max
Storage temperature range
-55ºC to +125ºC
Thermal shock
MIL-STD-810D
Vibration
10~55Hz, 2G, 3minutes period, 30minutes along X,Y and Z
Humidity , Max , Non-Condensing
95%
EMC CHARACTERISTICS
Conducted emissions
Radiated emissions
EN55022 (Note 5)
EN55022 (Note 5)
EN55022
ESD
Radiated immunity
Fast transient
Surge
Conducted immunity
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