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Page 2
EUS25-096 6200551433-C01_01Dec04
www.cdtechno-cps.com
BUS CONVERTER
EUS25-096 Model
Table 3
Protection Characteristics
Notes & Conditions (1)
Min
Typ.
Max
Units
Output Over-Current Shutdown
Non-Latching
27
30
33
A
Re-start rate
60
msec
Over Temperature Shutdown (4)
Non-Latching
125
130
°C
Over Temperature Restart Hysteresis
10
°C
Table 4
General Specifications
Notes & Conditions (1)
Min
Typ.
Max
Units
Isolation Voltage
Input to Output
2250
Vdc
Isolation Resistance
Input to Output
10
Mohm
Storage Temperature Range
Non-condensing
-40
125
°C
Operating Temperature Range
Ambient (6)
-40
100
°C
Thermal Measurement Location Temperature (6)
See mechanical drawing for TML location
120
°C
Material Flammability
UL 94V-0
MTBF
Calculated (Bellcore TR-332)
2.7
x10
6 Hrs
Demonstrated
> 2
x10
6 Hrs
Dimension
2.28”L x 0.9”W x 0.48”H (max)
(57.9L x 22.9W x 12.19H mm max)
Weight
30
grams
Table 5
Standards Compliance
Notes & Conditions (6)
UL/CSA 60950
Basic Insulation
EN60950
Certified by TUV
Notes:
(1) Vin = 48Vdc, Ta = 25 °C, Airflow = 200 LFM for all data unless otherwise noted.
(2) Output Ripple Voltage and noise is specified when measured with a 10uF tantalum and a 1uF ceramic capacitor at the converter
output pins.
(3) Transient response is specified without a capacitor at the output of the converter.
(4) Thermal shutdown is monitored at the Thermal Measurement Location (TML). See ‘Mechanical Information’ on page 3 for TML
location.
(5) See ‘Safety Considerations’ shown in Figure 1.
(6) De-rating curves are conducted in a controlled environment. End application testing is required to ensure the Thermal Measurement
Location temperature is below the maximum specified.
(7) Recommended airflow direction is from pin 1 to pin 3, or 3 to 1 (transverse).
(8) Current share accuracy is optimized when the source and load impedance presented to each converter is equal.
(9) Input Reflected Ripple is specified when measured with a 12uH source inductance. Without an input filter inductor, input ripple is less
than 1 Arms for an input filter capacitance rated 70 mohms esr.