QES SERIES - 66 WATT
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
FEATURES
• Industry Standard
Package
• 100°C Case Operation
• Optional Trim and
Enable
• Wide Range Input
Voltage
• 1500V Isolation
• Short Circuit Protection
EFFICIENCY %
85
80
75
70
65
60
55
50
45
40
1
2
3
4
5
6
7
8
9
10
X10 = LOAD %
OES021ZC-A
OES025ZD-A
OES033ZE-A
OES040ZG-A
TECHNICAL SPECIFICATIONS
Input
Voltage Range
24 VDC Nominal
48 VDC Nominal
Input Reverse Input Current
Output
Setpoint Accuracy
±1%
Line Regulation Vin Min. - Vin Max., Iout Rated
0.2% Vout
Load Regulation Iout Min. - Iout Max., Vin Nom. 0.5% Vout
Remote Sense Headroom
0.5 VDC
Minimum Output Current
10 %, Iout Rated
Dynamic Regulation, Loadstep 25% Iout
Pk Deviation
4% Vout
Settling Time
500 mS
Voltage Trim Range
±10%
Short Circuit And Overcurrent Protection
Shutdown
Short Circuit Current Limit
200% Iout
Current Limit Threshold Range, % of Iout Rated 110 - 140%
OVP Trip Range
115 - 140% Vout Nom.
UVP Trip Range
70 - 90% Vout Nom.
OVP/UVP Type
Latching
General
18 - 36 VDC
36 - 75 VDC
Shunt Diode
Turn-On Time
30 mS
Remote Shutdown
Positive or Negative Logic
Remote Shutdown Reference
Vin Negative
Switching Frequency
300 kHz
Isolation
Input - Output
1500 VDC
Input - Case
1050 VDC
Output - Case
1050 VDC
Temperature Coefficient
±0.02%/°C
Case Temperature
Operating Range
-40 To +100°C
Storage Range
-40 To +125°C
Thermal Shutdown Range
105 to 115°C
Vibration, 3 Axes, 5 Min Each
5 g, 10 - 55 Hz
MTBF† (Bellcore TR-NWT-000332)
2.5 X 106 hrs
Safety
UL, cUL, TUV
Weight (Approx.)
1.7 oz
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.
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. 08/01
1
POWER-ONE [ POWER-ONE ]
