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date
page
09/12/2018
1 of 7
SERIES:
PDM1-S
│
DESCRIPTION:
DC-DC CONVERTER
FEATURES
• 1 W isolated output
• smaller package
•
•
•
•
•
•
•
•
single/dual unregulated output
1,500 Vdc isolation
short circuit protection
extended temperature range (-40~105°C)
antistatic protection up to 8kV
UL 60950-1 approval
high efficiency at light load
efficiency up to 80%
MODEL
typ
(Vdc)
input
voltage
range
(Vdc)
output
voltage
(Vdc)
min
(mA)
output
current
max
(mA)
output
power
max
(W)
ripple
and noise
2
typ
(mVp-p)
efficiency
typ
(%)
PDM1-S3-S3-S
PDM1-S3-S5-S
PDM1-S3-S9-S
PDM1-S3-S12-S
PDM1-S3-S15-S
PDM1-S3-D5-S
PDM1-S3-D12-S
PDM1-S3-D15-S
PDM1-S5-S3-S
PDM1-S5-S5-S
1
PDM1-S5-S9-S
1
PDM1-S5-S12-S
1
PDM1-S5-S15-S
1
PDM1-S5-S24-S
1
PDM1-S5-D3-S
PDM1-S5-D5-S
1
PDM1-S5-D9-S
1
PDM1-S5-D12-S
1
PDM1-S5-D15-S
1
PDM1-S5-D24-S
1
PDM1-S9-D9-S
PDM1-S9-D15-S
PDM1-S12-S3-S
PDM1-S12-S5-S
1
PDM1-S12-S9-S
1
PDM1-S12-S12-S
1
PDM1-S12-S15-S
1
Notes:
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
5
5
5
5
5
5
5
5
5
5
5
5
9
9
12
12
12
12
12
2.97~3.63
2.97~3.63
2.97~3.63
2.97~3.63
2.97~3.63
2.97~3.63
2.97~3.63
2.97~3.63
4.5~5.5
4.5~5.5
4.5~5.5
4.5~5.5
4.5~5.5
4.5~5.5
4.5~5.5
4.5~5.5
4.5~5.5
4.5~5.5
4.5~5.5
4.5~5.5
8.1~9.9
8.1~9.9
10.8~13.2
10.8~13.2
10.8~13.2
10.8~13.2
10.8~13.2
3.3
5
9
12
15
±5
±12
±15
3.3
5
9
12
15
24
±3.3
±5
±9
±12
±15
±24
±9
±15
3.3
5
9
12
15
31
20
11
9
7
±10
±5
±4
31
20
11
9
7
5
±15
±10
±6
±5
±4
±3
±6
±4
31
20
11
9
7
303
200
111
84
67
±100
±42
±34
303
200
111
84
67
42
±152
±100
±56
±42
±34
±21
±56
±34
303
200
111
84
67
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
72
78
78
78
78
78
78
76
74
80
80
80
80
80
71
80
80
80
80
80
80
80
76
80
80
80
80
1. UL approved
2. Ripple and noise are measured at 20 MHz BW by “parallel cable” method with 1 μF ceramic and 10 μF electrolytic capacitors on the output.
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product page.
CUI Inc
│
SERIES:
PDM1-S
│
DESCRIPTION:
DC-DC CONVERTER
date
09/12/2018
│
page
3 of 7
INPUT
parameter
conditions/description
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
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
capacitance filter
min
2.97
4.5
8.1
10.8
13.5
21.6
-0.7
-0.7
-0.7
-0.7
-0.7
-0.7
typ
3.3
5
9
12
15
24
max
3.63
5.5
9.9
13.2
16.5
26.4
5
9
12
18
21
30
units
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
operating input voltage
surge voltage
filter
OUTPUT
parameter
line regulation
conditions/description
for Vin change of 1%
3.3 Vdc output models
all other models
measured from 10% load to full load
3.3 Vdc output models
5 Vdc output models
9 Vdc output models
12 Vdc output models
15 Vdc output models
24 Vdc output models
see tolerance envelope curve
100% load, nominal input voltage
100% load
100
±0.03
kHz
%/°C
18
12
9
8
7
6
min
typ
max
±1.5
±1.2
units
%
%
%
%
%
%
%
%
load regulation
voltage accuracy
switching frequency
temperature coefficient
PROTECTIONS
parameter
short circuit protection
1
Notes:
conditions/description
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
all other models: continuous, auto recovery
min
typ
max
1
units
s
1. The supply voltage must be discontinued at the end of the short circuit duration
SAFETY AND COMPLIANCE
parameter
isolation voltage
isolation resistance
isolation capacitance
safety approvals
2
conducted emissions
radiated emissions
ESD
MTBF
RoHS
Notes:
conditions/description
input to output, for 1 minute at 1 mA max.
input to output at 500 Vdc
input to output at 100Khz/0.1V
UL 60950-1
min
1,500
1,000
typ
max
units
Vdc
MΩ
20
pF
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
as per MIL-HDBK-217F at 25°C
yes
3,500,000
hours
2. See specific models noted on pages 1 and 2
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CUI Inc
│
SERIES:
PDM1-S
│
DESCRIPTION:
DC-DC CONVERTER
date
09/12/2018
│
page
4 of 7
ENVIRONMENTAL
parameter
operating temperature
storage temperature
storage humidity
temperature rise
non-condensing
Ta = 25°C
25
conditions/description
see derating curve
min
-40
-55
typ
max
105
125
95
units
°C
°C
%
°C
SOLDERABILITY
parameter
hand soldering
wave soldering
conditions/description
1.5 mm from case for 10 seconds
see wave soldering profile
Peak Temp. 260°C Max.
250
Wave Soldering Time
4 Sec. Max.
min
typ
max
300
260
units
°C
°C
200
Temperature (°C)
10 Sec. Max.
150
100
50
0
MECHANICAL
parameter
dimensions
case material
weight
conditions/description
epoxy resin (UL94-V0)
Time (sec.)
min
typ
max
units
mm
19.50 x 6.00 x 9.30 (0.768 x 0.236 x 0.366 inch)
2.4
g
MECHANICAL DRAWING
units: mm[inch]
tolerance: ±0.25[±0.010]
pin section tolerance: ±0.10[±0.004]
PIN CONNECTIONS
PIN
1
2
4
5
6
Single Output
Vin
GND
0V
No Pin
+Vo
Dual Output
Vin
GND
-Vo
0V
+Vo
Front View
Bottom View
Side View
PCB Layout
Top View
Grid Size: 2.54mm x 2.54mm
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product page.
CUI Inc
│
SERIES:
PDM1-S
│
DESCRIPTION:
DC-DC CONVERTER
date
09/12/2018
│
page
5 of 7
DERATING CURVES
10
Tolerance Envelope Curve
(3.3 Vdc output only)
Tolerance Envelope Curve
(all other models)
10
Output Voltage Accuracy (%)
5
0
-5
-10
-15
Output Voltage Accuracy (%)
5
0
-5
-10
-15
Typ
ica
l
Max
Loa
dL
ine
Rated Output Voltage
1.0
Typic
al
Max
Load
Min
Line
Rated Output Voltage
-2.5
2.5
Min
-7.5
-7.5
-15
10
Output Current Percentage (%)
(Nominal Input Voltage)
20
40
60
80
100
10
20
40
60
80
100
Output Current Percentage (%)
(Nominal Input Voltage)
urve
Temperature Derating Curve
100
2.5
80
60
40
20
Rated Output Voltage
-2.5
Load (%)
Safe operating area
-7.5
e (%)
e)
0
80
90
100
-40
-20
0
20
40
60
85
105
120
Ambient Temperature (°C)
EMC RECOMMENDED CIRCUIT
Figure 1
Table 1
Recommended external circuit
components
Vin
C1
GND
+Vo
Cout
LOAD
LDM
Vin
DC/DC
GND
-Vo
(0V)
CY
Vin
(Vdc)
3.3
5
9
12
15
24
Note:
C1
4.7μF/50V
4.7μF/50V
4.7μF/50V
4.7μF/50V
4.7μF/50V
4.7μF/50V
CY
--
--
--
--
1nF/2KV
1nF/2KV
LDM
6.8μH
6.8μH
6.8μH
6.8μH
6.8μH
6.8μH
1. See Table 2 for Cout values.
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