OES DC/DC Series Data Sheet
Features
• Ultra-dense 40W converter
• Industry-standard package
• 100 °C baseplate operation
• Open-frame packaging
• 5, 3.3, 2.5, and 2.1V outputs
• Remote enable pin
• 1500V isolation
• Input Pi filter
Description
OES DC/DC converters are ultra-dense, 40 watt, single output converters produced for the telecom and
networking markets. Making use of open-frame packaging, planar magnetics, high efficiency topologies, and surface-
mount design, the OES has superior thermal performance. The OES features 1500 VDC isolation and overvoltage
protection, as well as input undervoltage lockout.
Technical Specifications
Input
Voltage Range
48 VDC Nominal
Input Under Voltage Lockout
Input Undervoltage Hysteresis
36 - 72 VDC
<34V
1V Nominal
Efficiency vs. Load (48V Input)
Reflected Ripple
50 mA pk-Pk
95
90
85
80
75
70
65
60
55
50
45
40
Input Reverse Voltage Protection
Shunt Diode
Output
Setpoint Accuracy
3.3/5.0 V Line Regulation V Min. - V Max., I
±1%
Rated
Rated
0.2% V
in
in
out
out
out
OES021ZC-A
2.5/2.1 V Line Regulation V Min. - V Max., I
0.4% V
in
in
out
OES025ZD-A
OES033ZE-A
OES040ZG-A
Load Regulation I
Min. - I
Max., V Nom.
0.5% V
out
out
in
out
Minimum Output Current
10%, I
Rated
out
Dynamic Regulation, Loadstep
Pk Deviation
25% I
6% V
out
out
1
2
3
4
5
6
7
8
9
10
X10 = LOAD %
Settling Time
Voltage Trim Range
Short Circuit / Overcurrent Protection
500 m s
±10%
Shutdown / Hiccup
General
Current Limit Threshold Range, % of I
Rated
110 - 140%
Turn-On Time
Remote Shutdown
Switching Frequency, 3.3V Output
Switching Frequency, 5.0, 2.5, 2.1V Outputs
Isolation
10 ms
Positive Logic
400 kHz
out
OVP Trip Range
120 - 140% V
Nom.
out
300 kHz
Remote Shutdown Reference
V
Negative
in
Input - Output
Input - Case
Output - Case
1500 VDC
1050 VDC
500 VDC
Notes
MTBF predictions may vary slightly from model to model.
†
Temperature Coefficient
Case Temperature
Operating Range
±0.03%/°C
Specifications typically at 25°C, normal line, and full load, unless otherwise
stated.
-40 To +100°C
-40 To +125°C
105 To 115°C
5 g, 10 - 55 Hz
Storage Range
Thermal Shutdown Range
Vibration, 3 Axes, 5 Min Each
Soldering Conditions: I/O pins, 260°C, ten seconds; fully compatible with
commercial wave-soldering equipment.
6
†
MTBF (Bellcore TR-NWT-000332)
2.5 X 10 hrs
Safety
Weight (Approx.)
UL, cUL, TUV
1.4 oz
Units are water-washable and fully compatible with commercial spray or
immersion post wave-solder washing equipment.
REV. OCT 03, 2003
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