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04/08/2014
1 of 6
SERIES:
PQM1-M
│
DESCRIPTION:
DC-DC CONVERTER
FEATURES
• 1 W isolated output
• smaller package
•
•
•
•
•
•
single regulated output
1,500 Vdc isolation
continuous short circuit protection
extended temperature range (-40~85°C)
high efficiency at light load
efficiency up to 75%
MODEL
typ
(Vdc)
input
voltage
range
(Vdc)
output
voltage
(Vdc)
min
(mA)
output
current
max
(mA)
output
power
max
(W)
ripple
and noise
1
typ
(mVp-p)
efficiency
typ
(%)
PQM1-S5-S3-M
PQM1-S5-S5-M
PQM1-S5-S9-M
PQM1-S5-S12-M
PQM1-S5-S15-M
PQM1-S12-S5-M
PQM1-S12-S9-M
PQM1-S12-S12-M
PQM1-S12-S15-M
PQM1-S24-S5-M
PQM1-S24-S9-M
PQM1-S24-S12-M
PQM1-S24-S15-M
Note:
5
5
5
5
5
12
12
12
12
24
24
24
24
4.75~5.25
4.75~5.25
4.75~5.25
4.75~5.25
4.75~5.25
11.4~12.6
11.4~12.6
11.4~12.6
11.4~12.6
22.8~25.2
22.8~25.2
22.8~25.2
22.8~25.2
3.3
5
9
12
15
5
9
12
15
5
9
12
15
25
20
12
9
7
20
12
9
7
20
12
9
7
243
200
111
84
67
200
111
84
67
200
111
84
67
0.8
1
1
1
1
1
1
1
1
1
1
1
1
50
50
50
50
50
50
50
50
50
50
50
50
50
58
72
74
73
74
73
74
73
75
73
74
73
74
1. 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
PQM1 - SXX - S
XX
- M -
X
Base Number
Input Voltage
Output
S = single
Output Voltage
Packaging Style
"blank" = tube
TR = tape & reel
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SERIES:
PQM1-M
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DESCRIPTION:
DC-DC CONVERTER
date
04/08/2014
│
page
2 of 6
INPUT
parameter
operating input voltage
conditions/description
5 Vdc input models
12 Vdc input models
24 Vdc input models
for maximum of 1 second
5 Vdc input models
12 Vdc input models
24 Vdc input models
capacitance
fi
lter
min
4.75
11.4
22.8
-0.7
-0.7
-0.7
typ
5
12
24
max
5.25
12.6
25.2
9
18
30
units
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
surge voltage
fi
lter
OUTPUT
parameter
line regulation
load regulation
voltage accuracy
switching frequency
temperature coefficient
conditions/description
for Vin change of 1%
measured from 10% load to full load
3.3 Vdc output models
all other models
at 100% load
at 100% load, nominal input voltage
at 100% load
100
3
1
±3
300
±0.03
min
typ
max
±0.25
units
%
%
%
%
kHz
%/°C
PROTECTIONS
parameter
short circuit protection
conditions/description
continuous, automatic recovery
min
typ
max
units
SAFETY AND COMPLIANCE
parameter
isolation voltage
isolation resistance
conducted emissions
radiated emissions
ESD
MTBF
RoHS
conditions/description
input to output for 1 minute at 1 mA max.
input to output at 500 Vdc
min
1,500
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
as per MIL-HDBK-217F @ 25°C
2011/65/EU
3,500,000
hours
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
85
125
95
units
°C
°C
%
°C
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SERIES:
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DESCRIPTION:
DC-DC CONVERTER
date
04/08/2014
│
page
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SOLDERABILITY
parameter
hand soldering
reflow soldering
conditions/description
1.5 mm from case for 10 seconds
see reflow soldering profile
2 50
2 45
min
typ
max
300
245
units
°C
°C
P e a k . Te m p 2 4 5
°C
( M a x .)
Temperature (°C)
2 17
2 00
6 0 S e c M ax
( > 2 1 7
°C
)
1 50
1 00
50
0
Time (sec.)
MECHANICAL
parameter
dimensions
case material
weight
conditions/description
15.24 x 11.20 x 7.25 (0.600 x 0.441 x 0.285 inch)
epoxy resin (UL94-V0)
2.0
g
min
typ
max
units
mm
MECHANICAL DRAWING
units: mm[inch]
tolerance: ±0.25[±0.010]
pin section tolerance: ±0.10[±0.004]
PIN CONNECTIONS
PIN
1
2
4/5
7
10
NC: No Connection
FUNCTION
GND
Vin
0V
+Vo
NC
Top View
Top View
PCB Layout
Side View
Front View
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SERIES:
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DESCRIPTION:
DC-DC CONVERTER
date
04/08/2014
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4 of 6
DERATING CURVE
Temperature Derating Curve
100
80
60
Load (%)
Safe operating area
40
20
-40
-20
0
20
40
60 71
85
100
Ambient Temperature (°C)
EMC RECOMMENDED CIRCUIT
Figure 1
Table 1
Recommended external circuit components
V in
LDM
V in
+Vo
C2
0V
LOAD
Vout
(Vdc)
3.3
5
9
12
15
C1
4.7μF/50V
4.7μF/50V
4.7μF/50V
4.7μF/50V
4.7μF/50V
C2
10μF
10μF
4.7μF
2.2μF
1μF
LDM
6.8μH
6.8μH
6.8μH
6.8μH
6.8μH
C1
GND
DC DC
GND
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DESCRIPTION:
DC-DC CONVERTER
date
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│
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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
fi
lter 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.
V in
Cin
GND
Table 2
Vin
(Vdc)
5
12
24
--
--
Note:
+Vo
DC
DC
Cout
0V
Table 3
Cin
(μF)
4.7
2.2
1
--
--
Vo
(Vdc)
3.3
5
9
12
15
Cout
(μF)
10
10
4.7
2.2
1
Vout
(Vdc)
3.3
5
9
12
15
Max. Capacitive Load
(μF)
220
220
220
220
220
It’s not recommended to connect any external capacitors in
applications with less than 0.5 watt output.
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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