OET SERIES - TRIPLE OUTPUT, 25 WATT
DESCRIPTION
FEATURES
OET triple output DC/DC converters provide 25 watts
of output power in an industry-standard package. The
OET series features excellent efficiency and industry-
leading power density. The OET features open-frame
packaging to provide maximum useable power with
minimal thermal constraints. These units are fully
compatible with production board washing processes.
• Input Undervoltage
Lockout
• 24V or 48V Input
Versions
• 1500V Isolation
• 100°C Baseplate
Operation
• Triple Output 2” x 2”
• Open-Frame
Construction
• 1.5 Million Hours MTBF
• Short Circuit and
Overvoltage Protection
TECHNICAL SPECIFICATIONS
Input
Voltage Range
24 VDC Nominal
48 VDC Nominal
Turn On Voltage 24V/48V Models
Turn On Hysteresis
Reflected Ripple Input Current
Input Reverse Voltage Protection
18 - 36 VDC
34 - 75 VDC
<17V / <34V
1V Nominal
50 mA pk-pk
Shunt Diode
Output
Setpoint Accuracy
1%
Efficiency vs. Load (48V Input)
Line Regulation V Min. - V Max., I
Rated
0.2% V
in
in
out
out
90
85
80
75
70
65
60
Load Regulation I
Min. - I
Max., V Nom.
0.5% V
out
out
in
out
Secondary Output Regulation, All Line/Load Conditions
Minimum Output Current
10% V
out
10 % I
rated
out
Dynamic Regulation, Loadstep
Pk Deviation
25% I
out
out
EFF. OETZGHH-A
EFF. OETZGJJ-A
4% V
Settling Time
Short Circuit And Overcurrent Protection
Power LimitThreshold Range
500 µs
Shutdown and Self-Recovering
110 - 130%
Short Circuit
200% I
Nom.
out
out
10
20
30
40
50
60
70
80
90
10
OVP Trip Range
OVP Type
115 - 140% V
Nom.
LOAD %
Self-Recovering
General
Switching Frequency
Turn-On Time
500 kHz
10ms
Notes
Remote Shutdown
Isolation
Positive Logic
†
MTBF predictions may vary slightly from model to model.
Input - Output
Input - Case
Output - Case
Temperature Coefficient
Case Temperature
Operating Range
Storage Range
Thermal Shutdown Range
Humidity Max., Non-Condensing
Vibration, 3 Axes, 5 Min Each
1500 VDC
1050 VDC
1050 VDC
0.03%/°C
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.
-40 to +100°C
-40 to +125°C
105 to 115°C
95%
Safety: Agency approvals may vary from model to model. Please consult
factory for specific model information.
Units are water-washable and fully compatible with commercial spray or
immersion post wave-solder washing equipment.
5 g, 10 - 55 Hz
6
MTBF† (Bellcore TR-NWT-000332)
Safety
Weight (approx.)
1.5 x 10 hrs
UL, cUL, TUV
1.3 oz
Rev. SEP 17, 2002
1