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.
PART NUMBER KEY
PEM2 - SXX -
XXX
-D
Base Number
Input Voltage
Output
S = single
D = dual
Output Voltage
Packaging Style
DIP
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DC-DC CONVERTER
date
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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%~100% load
5 Vdc output models
9 Vdc output models
12 Vdc output models
15 Vdc output models
see tolerance envelope curve
100% load, nominal input voltage
at 100% load
100
300
±0.03
kHz
%/°C
10
9
8
7
min
typ
max
±1.2
units
%
%
%
%
%
load regulation
voltage accuracy
switching frequency
temperature coefficient
PROTECTIONS
parameter
short circuit protection
1
Note:
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
Note:
conditions/description
input to output for 1 minute at 1 mA max.
input to output at 500 Vdc
UL 60950-1
CISPR22/EN55022, class B, external circuit required
CISPR22/EN55022, class B, external circuit required
min
3,000
1,000
typ
max
units
Vdc
MΩ
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
2. See specific models noted on page 1
3,500,000
hours
ENVIRONMENTAL
parameter
operating temperature
storage temperature
storage humidity
temperature rise
non-condensing
Ta=25°C, 100% load
25
conditions/description
see derating curve
min
-40
-55
typ
max
105
125
95
units
°C
°C
%
°C
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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
Time (sec.)
conditions/description
20.32 x 10.16 x 8.2 (0.800 x 0.400 x 0.323 inch)
epoxy resin (UL94-V0)
min
typ
max
units
mm
2.4
g
MECHANICAL DRAWING
units: mm[inch]
tolerance: ±0.25[±0.010]
pin section tolerance: ±0.10[±0.004]
PIN CONNECTIONS
PIN
1
7
8
9
10
14
Single Output
GND
NC
+Vo
NO PIN
0V
Vin
Dual Output
GND
NC
+Vo
0V
-Vo
Vin
Front View
Bottom View
Top View
PCB Layout
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DERATING CURVES
Tolerance Envelope Curve
10
Temperature Derating Curve
100
Output Voltage Accuracy (%)
7.5
5
2.5
0
-2.5
-5
-7.5
-10
10
20
30
40
50
60
70
80
90
-7.5
Rated Output Voltage
-2.5
Load (%)
Typica
l
Load
Line
2.5
80
60
40
20
Safe operating area
Output Current Percentage (%)
(Nominal Input Voltage)
100
-40
-20
0
20
40
60
85
105
120
Ambient Temperature (°C)
EMC RECOMMENDED CIRCUIT
Figure 1
Table 1
Recommended external circuit components
LDM
Vin
C1
GND
Vin
+Vo
C out
LOAD
Vin
(Vdc)
5
12
15
24
Note:
C1
4.7μF/50V
4.7μF/50V
4.7μF/50V
4.7μF/50V
C2
-
470pF/3kV
470pF/3kV
470pF/3kV
LDM
6.8μH
6.8μH
6.8μH
6.8μH
DC / DC
GND
-Vo
( 0V)
C2
1. See Table 2 for Cout values.
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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 2 & Table 2). 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 3).
Figure 2
2.
3.
Single Output
Vin
GND
Cin
Dual O ut put
+Vo
Vin
GND
Cin
DC DC
Cout
DC DC
Cout
Cout
+Vo
0V
Vo
0V
Table 2
Table 3
Dual Vo
(Vdc)
±5
±12
±15
--
Cout
(µF)
4.7
1
0.47
--
Note:
Vin
(Vdc)
5
12
15
24
Note:
Cin
(µF)
4.7
2.2
2.2
1
Single Vo
(Vdc)
5
9
12
15
Cout
(µF)
10
4.7
2.2
1
Single Vout
(Vdc)
5
9
12
15
Max. Capacitive Load
(μF)
220
220
220
220
Dual Vout
(Vdc)
5
--
12
15
Max. Capacitive Load
1
(μF)
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.
Notes:
1.
2.
3.
4.
Operation under minimum load will not damage the converter; however, they may not meet all specifications listed.
Max. capacitive load tested at input voltage range and full load.
It is recommended to use either ceramic capacitors or electrolytic capacitors on the input and the output. Using tantalum capacitors may increase the risk of failure.
All specifications measured at: Ta=25°C, humidity<75%, nominal input voltage and rated output load, unless otherwise specified.
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