Datasheet

cui.com
CUI Inc │ SERIES: PQM1-M │ DESCRIPTION: DC-DC CONVERTER date 04/08/2014 │ page 2 of 6
INPUT
parameter conditions/description min typ max units
operating input voltage
5 Vdc input models
12 Vdc input models
24 Vdc input models
4.75
11.4
22.8
5
12
24
5.25
12.6
25.2
Vdc
Vdc
Vdc
surge voltage
for maximum of 1 second
5 Vdc input models
12 Vdc input models
24 Vdc input models
-0.7
-0.7
-0.7
9
18
30
Vdc
Vdc
Vdc
fi lter capacitance fi lter
OUTPUT
parameter conditions/description min typ max units
line regulation for Vin change of 1% ±0.25 %
load regulation
measured from 10% load to full load
3.3 Vdc output models
all other models
3
1
%
%
voltage accuracy at 100% load ±3 %
switching frequency at 100% load, nominal input voltage 100 300 kHz
temperature coeffi cient at 100% load ±0.03 %/°C
PROTECTIONS
parameter conditions/description min typ max units
short circuit protection continuous, automatic recovery
SAFETY AND COMPLIANCE
parameter conditions/description min typ max units
isolation voltage input to output for 1 minute at 1 mA max. 1,500 Vdc
isolation resistance input to output at 500 Vdc 1,000 M
conducted emissions CISPR22/EN55022 class B (external circuit required, see Figure 1)
radiated emissions CISPR22/EN55022 class B (external circuit required, see Figure 1)
ESD IEC/EN61000-4-2, class B, contact ± 8kV
MTBF as per MIL-HDBK-217F @ 25°C 3,500,000 hours
RoHS 2011/65/EU
ENVIRONMENTAL
parameter conditions/description min typ max units
operating temperature see derating curve -40 85 °C
storage temperature -55 125 °C
storage humidity non-condensing 95 %
temperature rise at full load, Ta = 25°C 25 °C
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