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CUI Inc │ SERIES: PDM1-S │ DESCRIPTION: DC-DC CONVERTER
date 01/18/2021 │ page 3 of 7
INPUT
parameter
conditions/description
min
typ
max
units
3.3 Vdc input models
5 Vdc input models
9 Vdc input models
12 Vdc input models
15 Vdc input models
24 Vdc input models
2.97
4.5
8.1
10.8
13.5
21.6
3.3
5
9
12
15
24
3.63
5.5
9.9
13.2
16.5
26.4
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
operating input voltage
for maximum of 1 second
3.3 Vdc input models
5 Vdc input models
9 Vdc input models
12 Vdc input models
15 Vdc input models
24 Vdc input models
-0.7
-0.7
-0.7
-0.7
-0.7
-0.7
5
9
12
18
21
30
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
surge voltage
filter
capacitance filter
OUTPUT
parameter
conditions/description
min
typ
max
units
for Vin change of 1%
3.3 Vdc output models
all other models
line regulation
±1.5
±1.2
%
%
measured from 10% load to full load
3.3 Vdc output models
5 Vdc output models
18
12
9
8
7
%
%
%
%
%
%
load regulation
9 Vdc output models
12 Vdc output models
15 Vdc output models
24 Vdc output models
6
voltage accuracy
see tolerance envelope curve
100% load, nominal input voltage
100% load
switching frequency
temperature coefficient
100
kHz
±0.03
%/°C
PROTECTIONS
parameter
conditions/description
min
typ
max
units
3.3 Vdc input single output models, 24 Vdc input
single/dual output models, PDM1-S5-S24-S,
PDM1-S5-D24-S, PDM1-S3-D15-S
1
s
short circuit protection1
all other models: continuous, auto recovery
Notes:
1. The supply voltage must be discontinued at the end of the short circuit duration
SAFETY AND COMPLIANCE
parameter
conditions/description
min
typ
max
units
Vdc
MΩ
isolation voltage
isolation resistance
isolation capacitance
input to output, for 1 minute at 1 mA max.
input to output at 500 Vdc
1,500
1,000
input to output at 100Khz/0.1V
20
pF
certified to 62368-1: EN
certified to 60950-1: UL
safety approvals2
conducted emissions
radiated emissions
CISPR32/EN55032 class B (external circuit required, see Figure 1)
CISPR32/EN55032 class B (external circuit required, see Figure 1)
IEC/EN61000-4-2, class B, contact ± 8kV for single outputs
IEC/EN61000-4-2, class B, contact ± 6kV for dual outputs
ESD
MTBF
as per MIL-HDBK-217F at 25°C
3,500,000
hours
RoHS
yes
Notes:
2. See specific models noted on pages 1 and 2
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