EXB250 Datasheet, PDF (1/2 Pages) Artesyn Technologies – Single output

EXB250 SERIES
Single output
NEW
Product
• High efficiency topology, 90% typical at 3.3V
• Industry standard footprint
• Wide baseplate temperature, -40˚C to +100˚C
(natural convection)
• 90% to 110% output trim
• No minimum load
• Overvoltage protection
• Remote on/off
[ 2 YEAR WARRANTY ]
TÜV
The EXB250 is a new high efficiency, open frame, isolated 165 Watt converter
series in an industry standard half-brick footprint. The EXB250 delivers very high
output current at low voltages, and excellent useable power density for today's
high end applications. The design takes advantage of open frame construction to
provide a low weight, low thermal impedance baseplate design. The seven
models in the series feature an input voltage range of 33 to 75VDC and are
available in output voltages of 12V, 5V, 3.3V, 2.5V, 1.8V, 1.5V and 1.2V. The output
voltage on each model is adjustable from 90% to 110% of the nominal value.
Typical efficiencies for the models are 90% for the 3.3V, 88% for the 2.5V and 87%
for the 1.8V version. The EXB250 series also has a remote on/off capability.
Overcurrent and overvoltage protection features are included as standard. With full
international safety approval including EN60950 (TÜV Rheinland) and UL/cUL1950,
the EXB250 reduces compliance costs and time to market.
SPECIFICATION All specifications are typical at nominal input, full load at 25°C unless otherwise stated
OUTPUT SPECIFICATIONS
Voltage adjustability
90% to 110%
Set point accuracy
±1.6% max.
Line regulation
Low line to high line
1V2 Model
All other models
±0.2% max.
±0.1% max.
Load regulation
Full load to min. load
±0.2% max.
Minimum load
0%
Overshoot
At turn-on and turn-off
None
Undershoot
1.2V, 1.5V, 1.8V. 2.5V
and 3.3V models
None
Ripple and noise
5Hz to 20MHz
60mV pk-pk
20mV rms
Transient response
(See Note 1)
6% max. deviation
150µs recovery to
within total error band
INPUT SPECIFICATIONS
Input voltage range
48Vin nominal
33 to 75VDC
Input current
No load
Remote OFF
145mA max.
35mA max.
Input current (max.)
(See Note 3)
5.7A max. @ Io max.
and Vin = 33 to 75V
Input reflected ripple (See Note 5)
350mA (pk-pk) typ.
Active high remote ON/OFF
Logic compatibility
ON
OFF
(See Note 7)
Open collector ref to -input
Open circuit or >4.0VDC
<1.2VDC
Undervoltage lockout Power up
Power down
32.5V (typ.)
30.5V (typ.)
Start-up time
(See Note 6)
Power up
Remote ON/OFF
10ms (typ.)
3ms (typ.)
EMC CHARACTERISTICS
Conducted emissions EN55022 (See Note 2)
EN55022 (See Note 2)
Level A
Level B
Immunity:
ESD air
EN61000-4-2 8kV (NP), 15kV (NP)
ESD contact
EN61000-4-2 6kV ((NP), 8kV (NP)
Radiated field enclosure EN61000-4-3 10V/m (NP)
Conducted (DC power) EN61000-4-6 10V (NP)
Conducted (signal)
EN61000-4-6 10V (NP)
Input transients
ETS 300 132-2, ETR 283
GENERAL SPECIFICATIONS
Efficiency
See table
Operational
Input/output
Input/baseplate
1500VDC
1500VDC
Switching frequency Fixed
400kHz typ.
Approvals and
standards (See Note 4)
EN60950 (TÜV Rheinland)
UL/cUL1950
Material flammability
UL94V-0
Weight
73g (2.6oz)
MTBF
MIL-HDBK-217F
@ 40°C, 100% load
ground benign
>224,000 hours
ENVIRONMENTAL SPECIFICATIONS
Thermal performance
Operating baseplate -40°C to +100°C
temperature
Non-operating
-40°C to +125°C
International Safety Standard Approvals
TÜV
UL/cUL : UL1950 File No. E135734
TÜV Rheinland Certificate No. R2174184
CB Scheme No. US-TUVR-1085
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