Datasheet

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date
11/19/2015
page
1 of 6
SERIES: PEM2-S │ DESCRIPTION: DC-DC CONVERTER
FEATURES
•
•
•
•
•
•
•
•
•
•
2 W isolated output
smaller package
single/dual unregulated output
3,000 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 86%
MODEL
input
voltage
PEM2-S5-S5-S1
output
voltage
output
current
output
power
ripple
and noise2
efficiency
typ
(Vdc)
range
(Vdc)
(Vdc)
min
(mA)
max
(mA)
max
(W)
typ
(mVp-p)
typ
(%)
5
4.5~5.5
5
40
400
2
75
82
1
PEM2-S5-S12-S
5
4.5~5.5
12
17
167
2
75
82
PEM2-S5-S15-S1
5
4.5~5.5
15
13
133
2
75
83
PEM2-S5-S24-S
5
4.5~5.5
24
8
83
2
75
84
PEM2-S5-D5-S1
5
4.5~5.5
±5
±20
±200
2
75
80
1
PEM2-S5-D12-S
5
4.5~5.5
±12
±8
±83
2
75
83
PEM2-S5-D15-S1
5
4.5~5.5
±15
±7
±67
2
75
82
1
PEM2-S5-D24-S
5
4.5~5.5
±24
±4
±42
2
75
84
PEM2-S12-S5-S1
12
10.8~13.2
5
40
400
2
75
82
1
PEM2-S12-S12-S
12
10.8~13.2
12
17
167
2
75
84
PEM2-S12-S15-S1
12
10.8~13.2
15
13
133
2
75
85
PEM2-S12-D5-S
12
10.8~13.2
±5
±20
±200
2
75
80
PEM2-S12-D12-S1
12
10.8~13.2
±12
±8
±83
2
75
84
PEM2-S12-D15-S
12
10.8~13.2
±15
±7
±67
2
75
84
PEM2-S15-S5-S
15
13.5~16.5
5
40
400
2
75
80
PEM2-S15-D15-S
15
13.5~16.5
±15
±7
±67
2
75
84
PEM2-S24-S5-S
24
21.6~26.4
5
40
400
2
75
80
PEM2-S24-S12-S1
24
21.6~26.4
12
17
167
2
75
84
1
PEM2-S24-S15-S
24
21.6~26.4
15
13
133
2
75
86
PEM2-S24-S24-S1
24
21.6~26.4
24
8
83
2
75
86
PEM2-S24-D5-S
24
21.6~26.4
±5
±20
±200
2
75
80
PEM2-S24-D12-S1
24
21.6~26.4
±12
±8
±83
2
75
84
PEM2-S24-D15-S
24
21.6~26.4
±15
±7
±67
2
75
84
1
1
1
1
1
1
Notes:
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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CUI Inc │ SERIES: PEM2-S │ DESCRIPTION: DC-DC CONVERTER
date 11/19/2015 │ page 2 of 6
PART NUMBER KEY
PEM2 - SXX - XXX -S
Base Number
Output
S = single
D = dual
Input Voltage
Output Voltage
Packaging Style
SIP
INPUT
parameter
conditions/description
min
typ
max
units
operating input voltage
5 Vdc input models
12 Vdc input models
15 Vdc input models
24 Vdc input models
4.5
10.8
13.5
21.6
5
12
15
24
5.5
13.2
16.5
26.4
Vdc
Vdc
Vdc
Vdc
surge voltage
for maximum of 1 second
5 Vdc input models
12 Vdc input models
15 Vdc input models
24 Vdc input models
-0.7
-0.7
-0.7
-0.7
9
18
21
30
Vdc
Vdc
Vdc
Vdc
filter
capacitance filter
max
units
±1.2
%
OUTPUT
parameter
conditions/description
min
typ
line regulation
for Vin change of 1%
load regulation
measured from 10% load to full load
5 Vdc output models
12 Vdc output models
15 Vdc output models
24 Vdc output models
voltage accuracy
see tolerance envelope curve
voltage balance
dual output, balanced loads
±0.5
switching frequency
100% load, nominal input voltage
100
temperature coefficient
100% load
12
8
7
6
%
%
%
%
±1
%
kHz
±0.03
%/°C
max
units
1
s
max
units
PROTECTIONS
parameter
conditions/description
min
typ
short circuit protection
1
Notes:
1. The supply voltage must be discontinued at the end of the short circuit duration
SAFETY AND COMPLIANCE
parameter
conditions/description
isolation voltage
input to output, for 1 minute at 1 mA max.
3,000
Vdc
isolation resistance
input to output, at 500 Vdc
1,000
MΩ
safety approvals
UL 60950-1
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 for single outputs
IEC/EN61000-4-2, class B, contact ± 6kV for dual outputs
MTBF
as per MIL-HDBK-217F @ 25°C
2
RoHS
Notes:
min
3,500,000
2011/65/EU
2. See specific models noted on page 1
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typ
hours
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CUI Inc │ SERIES: PEM2-S │ DESCRIPTION: DC-DC CONVERTER
date 11/19/2015 │ page 3 of 6
ENVIRONMENTAL
parameter
conditions/description
min
max
units
operating temperature
see derating curve
-40
105
°C
-55
125
°C
95
%
storage temperature
storage humidity
non-condensing
temperature rise
at full load, Ta = 25°C
typ
25
°C
SOLDERABILITY
parameter
conditions/description
hand soldering
wave soldering
min
typ
max
units
1.5 mm from case for 10 seconds
300
°C
see wave soldering profile
260
°C
max
units
Peak Temp. 260°C Max.
Wave Soldering Time
4 Sec. Max.
250
Temperature (°C)
200
10 Sec. Max.
150
100
50
0
Time (sec.)
MECHANICAL
parameter
conditions/description
dimensions
19.65 x 7.05 x 10.16 (0.774 x 0.278 x 0.400 inch)
min
case material
plastic (UL94-V0)
weight
typ
mm
2.4
g
MECHANICAL DRAWING
PIN CONNECTIONS
PIN
Single Output
Dual Output
1
Vin
Vin
2
GND
GND
5
0V
-Vo
6
No Pin
0V
7
+Vo
+Vo
Front View
Grid Size: 2.54mm x 2.54mm
19.65 [0.774]
PCB Layout
Top View
Bottom View
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7.05 [0.278]
10.16 [0.400]
units: mm[inch]
tolerance: ±0.25[±0.010]
pin section tolerance: ±0.10[±0.004]
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CUI Inc │ SERIES: PEM2-S │ DESCRIPTION: DC-DC CONVERTER
date 11/19/2015 │ page 4 of 6
DERATING CURVES
Max
l Loa
dL
Typic
a
5
0
Min
-5
100
ine
2.5
Rated Output Voltage
Load (%)
Output Voltage Accuracy (%)
Temperature Derating Curve
Tolerance Envelope Curve
10
-2.5
-7.5
-10
80
60
Safe operating area
40
20
-15
10
20
40
60
80
100
-40
Output Current Percentage (%)
(Nominal Input Voltage)
-20
0
20
40
60
85
105
Ambient Temperature (°C)
EMC RECOMMENDED CIRCUIT
Figure 1
Table 1
Recommended external circuit components
LDM
Vin
Vin
C1
C2
GND
+Vo
DC/DC
Cout
LOAD
-Vo
(0V)
GND
Vin
(Vdc)
C1, C2
CY
LDM
5
4.7μF/50V
-
6.8μH
12
4.7μF/50V
-
6.8μH
15
4.7μF/50V
-
6.8μH
24
4.7μF/50V
1nF/3kV
6.8μH
Note: 1. See Table 3 for Cout values.
CY
TEST CONFIGURATION
Figure 2
Table 2
Oscilloscope
External components
Lin
Cin
Current
Probe
DC DC
Lin
4.7μH
Cin
220μF, ESR < 1.0Ω
at 100 kHz
Load
Note: Input reflected-ripple current is measured with an inductor Lin and Capacitor Cin to simulate source impedance.
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CUI Inc │ SERIES: PEM2-S │ DESCRIPTION: DC-DC CONVERTER
date 11/19/2015 │ page 5 of 6
APPLICATION NOTES
1. Output load requirement
To ensure this module can operate efficiently and reliably, the minimum output load may not be less than 10% of the full load during
operation. If the actual output power is low, connect a resistor at the output end in parallel to increase the load.
2. Overload Protection
Under normal operating conditions, the output circuit of this product has no protection against overload. The simplest method to add
this is to add a circuit breaker to the circuit.
3. Recommended circuit
If you want to further decrease the input/output ripple, you can increase the capacitance accordingly or choose capacitors with low
ESR (see Figure 3 & Table 3). However, the capacitance of the output filter capacitor must be appropriate. If the capacitance is too
high, a startup problem might arise. For every channel of the output, to ensure safe and reliable operation, the maximum capacitance
must be less than the maximum capacitive load (see Table 4).
Figure 3
Dual O utput
Single Ou tpu t
+Vo
Vin
GN D
Cout
DC DC
Cin
Vin
GN D
0V
DC DC
Cin
Table 3
Cout
Cin
(µF)
Single Vo
(Vdc)
Cout
(µF)
Dual Vo
(Vdc)
Cout
(µF)
5
4.7
5
10
±5
12
2.2
12
2.2
15
2.2
15
24
1
24
-Vo
Max. Capacitive Load1
(μF)
220
5
100
220
12
100
15
220
15
100
24
220
24
100
Max. Capacitive Load
(μF)
4.7
5
±12
1
12
1
±15
0.47
1
±24
0.47
It’s not recommended to connect any external capacitors in
applications with less than 0.5 watt output.
Note:
1. For each output.
4. Output Voltage Regulation and Over-voltage Protection Circuit
The device for output voltage regulation, over-voltage and over-current protection is a linear regulator and a capacitor filtering
network with overheat protection, which can be connected to the input or output end in series (see Figure 4). The recommended
capacitance of its filter capacitor (see Table 1), and the linear regulator is based on the actual voltage and current required.
Single Output
Vin
REG
GND
REG
+Vo
DC DC
0V
Dual Output
Vin
GND
Note:
0V
Dual Vout
(Vdc)
Single Vout
(Vdc)
Figure 4
+Vo
Table 4
Vin
(Vdc)
Note:
Cout
REG
REG
DC DC
+Vo
0V
REG
-Vo
1. Operation under minimum load will not damage the converter; however, they may not meet all specifications listed.
2. Max. capacitive load tested at input voltage range and full load.
3. All specifications measured at: Ta=25°C, humidity<75%, nominal input voltage and rated output load, unless otherwise specified.
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CUI Inc │ SERIES: PEM2-S │ DESCRIPTION: DC-DC CONVERTER
date 11/19/2015 │ page 6 of 6
REVISION HISTORY
rev.
description
date
1.0
initial release
03/21/2013
1.01
added UL approval to some models, updated spec
02/26/2015
1.02
added model, updated emc recommendations, updated datasheet
11/19/2015
The revision history provided is for informational purposes only and is believed to be accurate.
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