Datasheet

UCQ-3.3/40-D48 UCQ-5/20-D24 UCQ-5/20-D48 UCQ-5/25-D48 UCQ-12/8.3-D48 UCQ-15/6.7-D48N-C
Isolation Voltage
Input to Output,
Volts min.
2250
Input to baseplate,
Volts min.
1500
Baseplate to output,
Volts min.
1500
Isolation resistance, MΩ 10-100, model dependent
Isolation capacitance, pF 1000
Isolation safety rating Basic insulation
Miscellaneous
Current limit inception
(98% of Vout, after
warmup), Amps
49 26 22 27 10 9
Short circuit protection
method
Current limiting, hiccup autorestart. Remove overload for recovery.
Short circuit current,
Amps
15 5 5 5 TBD 2
Short circuit duration Continuous, output shorted to ground. No damage.
Overvoltage protection,
Volts (via magnetic
feedback)
4.25 6.25 TBD 6.2 14.4 18
Dynamic characteristics
Dynamic load response
(50-75-50% load step)
50 µSec to ±1% of
final value
200 µSec to ±1%
of final value
200 µSec to ±1%
of final value
200 µSec to ±1%
of final value
200 µSec to ±1%
of final value
150 µSec to ±2% of final value
Start-up time
Vin to Vout regulated,
mSec
5 4 10 max. 10 max. 10 max. 10 max.
Remote On/Off to Vout
regulated, mSec
5 4 10 max. 10 max. 10 max. 10 max.
Switching frequency, KHz 360 ± 20 400 ± 24 315 ± 30 315 ± 30 330 ± 40 300 ± 30 KHz
Environmental
Calculated MTBF 2.2M hours 2.2M hours TBD 1.7M hours 1.8M hours TBD
Operating temperature
range, °C.
See Derating curves.
−40 to +85, with derating
Operating case
temperature, °C
(no derating)
−40 to +120, model dependent −40 to +110
Storage temperature
range, °C
−55 to +125
Thermal protection/
shutdown, °C
110-125, model dependent
Relative humidity To +85°C/85%, non-condensing
FUNCTIONAL SPECIFICATIONS
➀ Specs are typical unless noted.
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Single Output UCQ Models
Low-Profile, Quarter Brick, 8.3-40 Amp
Isolated DC-DC Converters
MDC_UCQ Models.E02 Page 8 of 24