QES Series Data Sheet
DESCRIPTION
QES single output DC/DC converters provide up to 66 watts of
output power in an industry-standard, quarter-brick package. The
QES converters feature open-frame packaging, along with planar
magnetics and a high efficiency topology to provide maximum
useable power with minimal thermal constraints. The QES is
suited to telecom, networking, and industrial applications, and is
fully compatible with production board washing processes.
Efficiency vs. Load (48V Input)
95
90
85
80
75
70
FEATURES
• Industry Standard
Package
• 100°C Case Operation
• Optional Trim and
Enable
• Wide Range Input
Voltage
• 1500V Isolation
• Short Circuit Protection
OES021ZC-A
OES025ZD-A
OES033ZE-A
OES040ZG-A
65
60
55
50
45
40
1
2
3
4
5
6
7
8
9
10
X10 = LOAD %
TECHNICAL SPECIFICATIONS
Input
General
Voltage Range
24 VDC Nominal
48 VDC Nominal
Input Reverse Input Current
18 - 36 VDC
36 - 75 VDC
Shunt Diode
Turn-On Time
Remote Shutdown
30 ms
Positive or Negative Logic
Remote Shutdown Reference
Switching Frequency
Isolation
V
Negative
300 kHz
in
Output
Input - Output
1500 VDC
1050 VDC
1050 VDC
0.02ꢀ%/C
Input - Case
Setpoint Accuracy
1ꢀ
Output - Case
Line Regulation V Min. - V Max., I
Rated
0.2ꢀ V
in
in
Min. - I
out
out
Temperature Coefficient
Case Temperature
Operating Range
Load Regulation I
Remote Sense Headroom
Minimum Output Current
Max., V Nom. 0.5ꢀ V
out
out
in out
0.5 VDC
Rated
-40 To +100/C
-40 To +125/C
105 to 115/C
5 g, 10 - 55 Hz
Storage Range
10 ꢀ, I
out
Thermal Shutdown Range
Vibration, 3 Axes, 5 Min Each
Dynamic Regulation, Loadstep 25ꢀ I
Pk Deviation
out
4ꢀ V
500 m s
10ꢀ
†
6
out
MTBF (Bellcore TR-NWT-000332)
2.5 X 10 hrs
Settling Time
Voltage Trim Range
Safety
Weight (Approx.)
UL, cUL, TUV
1.7 oz
Short Circuit And Overcurrent Protection
Short Circuit Current Limit
Shutdown
200ꢀ I
Rated 110 - 140ꢀ
out
Current Limit Threshold Range, ꢀ of I
out
Notes
OVP Trip Range
UVP Trip Range
OVP%UVP Type
115 - 140ꢀ V
70 - 90ꢀ V
Nom.
Nom.
Latching
out
out
†
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.
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.
REV. MAY 12, 2003
1