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07/13/2017
1 of 7
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
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
(%)
PEM2-S5-S5-S
1
PEM2-S5-S12-S
1
PEM2-S5-S15-S
1
PEM2-S5-S24-S
1
PEM2-S5-D5-S
1
PEM2-S5-D12-S
1
5
5
5
5
5
5
5
5
12
12
12
12
12
12
15
15
24
24
24
24
24
24
24
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
10.8~13.2
10.8~13.2
10.8~13.2
10.8~13.2
10.8~13.2
10.8~13.2
13.5~16.5
13.5~16.5
21.6~26.4
21.6~26.4
21.6~26.4
21.6~26.4
21.6~26.4
21.6~26.4
21.6~26.4
5
12
15
24
±5
±12
±15
±24
5
12
15
±5
±12
±15
5
±15
5
12
15
24
±5
±12
±15
40
17
13
8
±20
±8
±7
±4
40
17
13
±20
±8
±7
40
±7
40
17
13
8
±20
±8
±7
400
167
133
83
±200
±83
±67
±42
400
167
133
±200
±83
±67
400
±67
400
167
133
83
±200
±83
±67
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
82
82
83
84
80
83
82
84
82
84
85
80
84
84
80
84
80
84
86
86
80
84
84
PEM2-S5-D15-S
1
PEM2-S5-D24-S
1
PEM2-S12-S5-S
1
PEM2-S12-S12-S
1
PEM2-S12-S15-S
1
PEM2-S12-D5-S
1
PEM2-S12-D12-S
1
PEM2-S12-D15-S
1
PEM2-S15-S5-S
PEM2-S15-D15-S
PEM2-S24-S5-S
1
PEM2-S24-S12-S
1
PEM2-S24-S15-S
1
PEM2-S24-S24-S
1
PEM2-S24-D5-S
1
PEM2-S24-D12-S
1
PEM2-S24-D15-S
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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DESCRIPTION:
DC-DC CONVERTER
date
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│
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PART NUMBER KEY
PEM2 - SXX -
XXX
-S
Base Number
Input Voltage
Output
S = single
D = dual
Output Voltage
Packaging Style
SIP
INPUT
parameter
operating input voltage
conditions/description
5 Vdc input models
12 Vdc input models
15 Vdc input models
24 Vdc input models
for maximum of 1 second
5 Vdc input models
12 Vdc input models
15 Vdc input models
24 Vdc input models
capacitance filter
min
4.5
10.8
13.5
21.6
-0.7
-0.7
-0.7
-0.7
typ
5
12
15
24
max
5.5
13.2
16.5
26.4
9
18
21
30
units
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
surge voltage
filter
OUTPUT
parameter
line regulation
conditions/description
for Vin change of 1%
measured from 10% load to full load
5 Vdc output models
12 Vdc output models
15 Vdc output models
24 Vdc output models
see tolerance envelope curve
dual output, balanced loads
100% load, nominal input voltage
100% load
±0.5
100
±0.03
±1
%
kHz
%/°C
12
8
7
6
min
typ
max
±1.2
units
%
%
%
%
%
load regulation
voltage accuracy
voltage balance
switching frequency
temperature coefficient
PROTECTIONS
parameter
short circuit protection
1
Notes:
1. The supply voltage must be discontinued at the end of the short circuit duration
conditions/description
min
typ
max
1
units
s
SAFETY AND COMPLIANCE
parameter
isolation voltage
isolation resistance
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
UL 60950-1
min
3,000
1,000
typ
max
units
Vdc
MΩ
CISPR22/EN55022 class B (external circuit required, see Figure 1)
CISPR22/EN55022 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 @ 25°C
2011/65/EU
3,500,000
hours
2. See specific models noted on page 1
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DESCRIPTION:
DC-DC CONVERTER
date
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ENVIRONMENTAL
parameter
operating temperature
storage temperature
storage humidity
temperature rise
non-condensing
at full load, 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
Time (sec.)
MECHANICAL
parameter
dimensions
case material
weight
conditions/description
19.65 x 7.05 x 10.16 (0.774 x 0.278 x 0.400 inch)
plastic (UL94-V0)
2.4
g
min
typ
max
units
mm
MECHANICAL DRAWING
10.16 [0.400]
units: mm[inch]
tolerance: ±0.25[±0.010]
pin section tolerance: ±0.10[±0.004]
PIN CONNECTIONS
PIN
1
2
5
6
7
Single Output
Vin
GND
0V
No Pin
+Vo
Dual Output
Vin
GND
-Vo
0V
+Vo
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]
Front View
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DESCRIPTION:
DC-DC CONVERTER
date
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page
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DERATING CURVES
10
Tolerance Envelope Curve
Temperature Derating Curve
100
Output Voltage Accuracy (%)
5
0
-5
-10
-15
Typic
a
-2.5
Load (%)
l Loa
d Lin
e
Min
Max
Rated Output Voltage
2.5
80
60
40
20
-7.5
Safe operating area
10
20
40
60
80
100
Output Current Percentage (%)
(Nominal Input Voltage)
-40
-20
0
20
40
60
85
105
120
Ambient Temperature (°C)
EMC RECOMMENDED CIRCUIT
Figure 1
Table 1
LDM
Vin
C1
GND
C2
Vin
+Vo
LOAD
Recommended external circuit components
Vin
(Vdc)
Cout
C1, C2
4.7μF/50V
4.7μF/50V
4.7μF/50V
4.7μF/50V
CY
-
-
-
1nF/3kV
LDM
6.8μH
6.8μH
6.8μH
6.8μH
DC/DC
GND
-Vo
(0V)
CY
5
12
15
24
Note: 1. See Table 3 for Cout values.
TEST CONFIGURATION
Figure 2
Table 2
External components
Oscilloscope
Lin
Cin
Current
Probe
Lin
4.7μH
220μF, ESR < 1.0Ω
at 100 kHz
DC DC
Cin
Load
Note: Input reflected-ripple current is measured with an inductor Lin and Capacitor Cin to simulate source impedance.
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date
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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.
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.
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
2.
3.
Single Ou tpu t
Vin
GN D
Cin
Dual O utput
+Vo
Vin
GN D
Cin
DC DC
Cout
DC DC
Cout
Cout
+Vo
0V
-Vo
0V
Table 3
Table 4
Dual Vo
(Vdc)
±5
±12
±15
±24
Cout
(µF)
4.7
1
0.47
0.47
Note:
Vin
(Vdc)
5
12
15
24
Note:
Cin
(µF)
4.7
2.2
2.2
1
Single Vo
(Vdc)
5
12
15
24
Cout
(µF)
10
2.2
1
1
Single Vout
(Vdc)
5
12
15
24
Max. Capacitive Load
(μF)
220
220
220
220
Dual Vout
(Vdc)
5
12
15
24
Max. Capacitive Load
1
(μF)
100
100
100
100
It’s not recommended to connect any external capacitors in
applications with less than 0.5 watt output.
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
GND
Figure 4
REG
REG
+Vo
DC DC
0V
Dual Output
Vin
GND
REG
REG
+Vo
0V
-Vo
DC DC
REG
Note:
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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