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OBS025ZG Datasheet

OBS SERIES 25 WATT

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OBS SERIES
Powering Communications and Technology
25 WATT
DESCRIPTION
FEATURES
OBS single output DC/DC converters provide up to 25 Watts
of output power in an industry standard package and
footprint. The OBS units feature excellent efficiency, six-
sided shielding, and fixed switching frequency. With 100°C
case operation, the OBS converters are especially suited to
telecom, networking, and industrial applications. These
units are 100% surface-mount construction and fully
compatible with production board washing processes.
• Industry standard package • Trim And Enable
• 24 and 48V input versions Pins
• 25W output power
• Fixed Frequency
• 100°C baseplate operation • 1500V Isolation
• 6-Sided Shielding
Efficiency vs. Load (24V Input)
95
90
TECHNICAL SPECIFICATIONS
Voltage Range
24 VDC Nominal
48 VDC Nominal
Reflected Ripple
Input Reverse Voltage Protection
Input
18 - 36 VDC
34 - 75 VDC
25 mA
Shunt Diode
85
80
EFF. OBS025YG
75 EFF. OBS025YH
70 EFF. OBS025YJ
65
10 20 30 40 50 60 70 80 90 100
LO AD %
Output
Setpoint Accuracy
Line Regulation Vin Min - Vin Max., Iout Rated
Load Regulation Iout Min. - Iout Max., Vin Nom.
Minimum Output Current
Dynamic Regulation, Loadstep
Pk Deviation
Settling Time
Voltage Trim Range
Short Circuit / Overcurrent Protection
Current Limit Threshold Range, % of Iout Rated
OVP Trip Range
OVP
General
Turn-On Time: 24 & 48Vin
Remote Shutdown
Remote Shutdown Reference
Switching Frequency
Isolation
Input - Output
Input - Case (24 Vin units)
Output - Case (48 V in units)
Temperature Coefficient
Case Temperature
Operating Range
Storage Range
Humidity Max., Non-Condensing
Vibration, 3 Axes, 5 Min Each
MTBF† (Bellcore TR-NWT-000332)
Safety
Weight (Approx.)
±1%
0.2% Vout
0.5% Vout
10 % Iout Rated
25% Iout
4% Vout
500 µs
±10% Iout Rated
Hiccup
110 - 140%
115 - 140%Vout Nom.
Hiccup
10 ms
Positive
Vin Negative
400 kHz
1500 VDC
500 VDC
500 VDC
0.03%/°C
-40 to +100°C
-40 to +125°C
95%
5 g, 10 - 55 Hz
1.8 x 106 hrs
UL, cUL, TUV
1.9 oz
Efficiency vs. Load (48V Input)
95
90
85
80
75
EFF. OBS017ZE
70 EFF. OBS025ZG
65 EFF. OBS025ZH
60
55
10 20 30 40 50 60 70 80 90 100
LOAD %
Notes
MTBF predictions may vary slightly from model to model.
Specifications typically at 25°C, normal line, and full load,
unless otherwise stated.
Soldering Conditions: I/O pins, 260°C, ten seconds; fully
compatible with commercial wave-soldering equipment.
Units are water-washable and fully compatible with commercial
spray or immersion post wave-solder washing equipment.
1
Power-One
Power-One



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