Datasheet
UWE Series
Wide Input, Isolated
Eighth-Brick DC-DC Converters
MDC_UWE Series.E04 Page 4 of 23
www.murata-ps.com/support
FUNCTIONAL SPECIFICATIONS, Q12 MODELS, CONTINUED
DYNAMIC CHARACTERISTICS UWE-3.3/20-Q12 UWE-5/15-Q12 UWE-12/6-Q12 UWE-15/5-Q12 UWE-24/3-Q12
Dynamic load response, μSec
(50-75-50% load step) to ±1%
of fi nal value
50
Start-up time
Vin to Vout regulated, mSec 20 20 40 30 40
Remote On/Off to Vout regulated, mSec 5 15302530
Switching frequency, KHz
245±25
215-250 275 ±25 275 ±25 215 ±15
ENVIRONMENTAL
Operating temperature range, no baseplate
with derating, °C (see Derating curves)
-40 to +85 with derating
Storage temperature range, °C -55 to +125
Maximum baseplate operating temperature, °C +100
Thermal protection/shutdown, °C +120
Relative humidity to +85°C/85% non-condensing
PHYSICAL
Outline dimensions See mechanical specs
Pin material Copper alloy
Pin Finish Nickel underplate with gold overplate (see mechanical specs for details)
Pin diameter, inches 0.04/0.062
Pin diameter, mm 1.016/1.575
Weight, ounces 0.7
Weight, grams 20
Electromagnetic interference (conducted) Meets EN55022 and CISPR22 class B with external fi lter.
Safety Meets UL/cUL 60950-1, CSA-C22.2 No.60950-1, IEC/EN 60950-1
FUNCTIONAL SPECIFICATIONS, Q48 MODELS
UWE-3.3/20-Q48 UWE-5/15-Q48 UWE-12/6-Q48 UWE-15/5-Q48
Specs are typical unless noted.
INPUT
Input voltage range
See ordering guide
Start-up threshold, Volts
17.5 17.5 17.5 17.5
Undervoltage shutdown, V. (@ ½ load)
16.5 16.0 16.0 16.0
Overvoltage shutdown, V.
none
Refl ected (back) ripple current, mA pk-pk
30 30 40 40
Suggested external fast blow fuse, A
8 101020
Input current
Full load conditions
Inrush transient, A
2
sec
0.1 A
2
sec 0.1 A
2
sec 0.1 A
2
sec 0.1 A
2
sec
Input current if output is in short circuit, mA
150 250 100 250
No load, mA
75 90 90 90
Low line (Vin=min.), Amps
4.1 4.6 4.35 4.71
Standby mode, mA
4545
(Off, UV, OT shutdown)
Internal input fi lter type
Pi-type L-C Pi-type L-C
Reverse polarity protection
None, install external fuse
Remote On/Off control
Positive logic ("P" model suffi x)
OFF = Ground pin to +0.8V max.
ON = Open pin or +3.5V to +15V max.
Negative logic ("N" model suffi x)
OFF = Open pin or +5V to +15V max.
ON = Ground pin to +1V max.
Current, mA
1