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OBD SERIES - DUAL OUTPUT, 25 WATT
DESCRIPTION
OBD dual output DC/DC converters provide up to 25
Watts of output power in an industry standard package
and footprint. These units feature excellent efficiency,
six-sided shielding, and fixed switching frequency. With
100°C case operation, the OBD units are especially suited
to telecom, networking, and industrial applications.
These units are 100% surface-mount construction and
fully compatible with production board washing
processes.
FEATURES
• Industry Standard
•
Package
•
• 48V Input
• Fixed-Frequency Design •
• 100°C Case Operation •
Trim and Enable Pins
Fixed Switching
Frequency
1500V Isolation
6-Sided Shielding
Efficiency vs. Load (24V Input)
90
85
EFFICIENCY %
80
75
70
65
EFF. OBD25YJJ
EFF. OBD25YHH
TECHNICAL SPECIFICATIONS
Input
Voltage Range
48 VDC Nominal
Reflected Ripple
Input Reverse Voltage Protection
Output
Setpoint Accuracy
Line Regulation V
in
Min. - V
in
Max., I
out
Rated
Load Regulation I
out
Min. - I
out
Max., V
in
Nom.
Minimum Output Current
Dynamic Regulation, Loadstep
Pk Deviation
Settling Time
Voltage Trim Range
Short Circuit / Overcurrent Protection
Current Limit Threshold Range, % of I
out
Rated
OVP Trip Range
OVP and UVP Type
General
Turn-On Time: 24 & 48V Input
Remote Shutdown
Remote Shutdown Reference
Switching Frequency
Isolation
Input - Output
Input - Case (12 V
in
and 24 V
in
units)
Output - Case (48 V
in
units)
Temperature Coefficient
Case Temperature
Operating Range (12V Input Max. Temp +85°C)
Storage Range
Vibration, 3 Axes, 5 Min. Each
MTBF† (Bellcore TR-NWT-000332)
Safety
Weight (Approx.)
10 ms
Positive
V
in
Negative
400 kHz
1500 VDC
1050 VDC
500 VDC
0.03%/°C
-40 to +100°C
-40 to +125°C
5 g, 10 - 55 Hz
1.9 x 10
6
hrs
UL, CUL, TUV
1.4 oz
±1%
0.2% V
out
0.5% V
out
34 - 75 VDC
25 mA
Shunt Diode
10
20
30
40
50
60
70
80
90
100
LOAD %
Efficiency vs. Load (48V Input)
100
90
EFFICIENCY %
25% I
out
4% V
out
500
µs
±10%
Hiccup
110 - 140%
115 - 140% V
out
Nom.
Second Control Loop
10 % I
out
Rated
80
70
60
50
40
10
20
30
40
50
60
70
80
90
100
LOAD %
EFF. OBD025ZJJ
EFF. OBD025ZGG
EFF. OBD025ZHH
Notes
†
††
MTBF predictions may vary slightly from model to model.
Industrial temp range available
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 ]
