Datasheet

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UEE 150W Series
Isolated, High-Density, Eighth-Brick
DOSA Low Profi le DC-DC Converters
MDC_UEE 150W_Series.A02 Page 17 of 35
FUNCTIONAL SPECIFICATIONS, UEE-12/12.5-D48
ABSOLUTE MAXIMUM RATINGS
Conditions ➀
Minimum Typical/Nominal Maximum Units
Input Voltage, Continuous 0 80 Vdc
Input Voltage, Transient 100 mS max. duration 100 Vdc
Isolation Voltage Input to output, continuous 2250 Vdc
Input Reverse Polarity None, install external fuse None Vdc
On/Off Remote Control Power on, referred to -Vin 0 15 Vdc
Output Power 0 152.25 W
Output Current 0 12.5 A
Storage Temperature Range Vin = Zero (no power) -55 125 °C
Absolute maximums are stress ratings. Exposure of devices to greater than any of these conditions may adversely affect long-term reliability. Proper operation under conditions other than those
listed in the Performance/Functional Specifi cations Table is not implied or recommended.
INPUT
Conditions ➀ ➂
Operating Voltage Range 36 48 75 Vdc
Recommended External Fuse Fast blow 10 A
Start-Up Threshold Rising input voltage 33.5 34.5 35.5 Vdc
Undervoltage Shutdown Falling input voltage 31.5 32.5 33.5 Vdc
Overvoltage Shutdown None Vdc
Reverse Polarity Protection None, install external fuse None Vdc
Internal Filter Type Pi
Input current
Full Load Conditions Vin = nominal 3.36 3.45 A
Low Line Input Current Vin = minimum 4.63 4.81 A
Inrush Transient 0.01 0.02 A
2
-Sec.
Short Circuit Input Current 50 mA
No Load Iout = minimum, unit = ON 120 150 mA
Shut-Down Input Current (Off, UV, OT) 610mA
Refl ected (back) ripple current ➁
Measured at input with specifi ed fi lter 100 mA, p-p
Pre-biased startup External output voltage < Vset Monotonic
GENERAL and SAFETY
Effi ciency Vin = 48V, full load 92 93 %
Isolation
Isolation Voltage Input to output, continuous 2250 Vdc
Isolation Voltage Input to baseplate, continuous 1500 Vdc
Isolation Voltage Output to baseplate, continuous 1500 Vdc
Insulation Safety Rating basic
Isolation Resistance 10 M
Isolation Capacitance 1000 pF
Safety
Certifi ed to UL-60950-1, CSA-C22.2 No. 60950-1,
IEC 60950-1, 2nd edition
Yes
Calculated MTBF
Per Telcordia SR332, issue 1, class 1, ground
fi xed, Tambient = +25°C
2.5 Hours x 10
6
DYNAMIC CHARACTERISTICS
Fixed Switching Frequency 400 KHz
Startup Time (startup delay) Power on to Vout regulated 15 20 mS
Startup Time (rise time) Remote ON to Vout regulated 28 30 mS
Dynamic Load Response
50-75-50% load step, settling time to within 1%
of Vout (1 A/uS)
1500 µSec
Dynamic Load Peak Deviation same as above ±450 mV
FEATURES and OPTIONS
Remote On/Off Control ➃
“N” suffi x:
Negative Logic, ON state ON = Ground pin or external voltage -0.1 0.8 Vdc
Negative Logic, OFF state OFF = Pin open or external voltage 2.5 15 Vdc
Control Current Open collector/drain 1 2 mA
“P” suffi x:
Positive Logic, ON state ON = Pin open or external voltage 3.5 15 V
Positive Logic, OFF state OFF = Ground pin or external voltage 0 1 V
Control Current Open collector/drain 1 2 mA
SMT Mounting "M" suffi x optional