Datasheet

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date
05/14/2014
page
1 of 6
SERIES: PQM3-M │ DESCRIPTION: DC-DC CONVERTER
FEATURES
•
•
•
•
•
•
•
•
•
•
3 W isolated output
smaller package
single regulated output
1,500 Vdc isolation
continuous short circuit
temperature range (-40~105°C)
high efficiency at light load
high power density
high vibration tolerance
efficiency up to 81%
MODEL
input
voltage
output
voltage
output
current
output
power
ripple
and noise1
efficiency
typ
(Vdc)
range
(Vdc)
(Vdc)
min
(mA)
max
(mA)
max
(W)
max
(mVp-p)
typ
(%)
PQM3-D12-S5-M
12
9~18
5
30
600
3
60
75
PQM3-D12-S12-M
12
9~18
12
12
250
3
60
77
PQM3-D12-S15-M
12
9~18
15
10
200
3
60
79
PQM3-D24-S5-M
24
18~36
5
30
600
3
60
76
PQM3-D24-S12-M
24
18~36
12
12
250
3
60
81
PQM3-D24-S15-M
24
18~36
15
10
200
3
60
80
PQM3-D48-S5-M
48
36~75
5
30
600
3
60
77
PQM3-D48-S12-M
48
36~75
12
12
250
3
60
80
PQM3-D48-S15-M
48
36~75
15
10
200
3
60
80
Notes:
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
PQM3 - DXX - SXX - M - X
Base Number
Input Voltage
Output Voltage
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Packaging Style
SMT
Package Options
"blank" = standard
TR = Tape & Reel
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CUI Inc │ SERIES: PQM3-M │ DESCRIPTION: DC-DC CONVERTER
date 05/14/2014 │ page 2 of 6
INPUT
parameter
conditions/description
min
typ
max
units
operating input voltage
12 V input models
24 V input models
48 V input models
9
18
36
12
24
48
18
36
75
Vdc
Vdc
Vdc
start-up voltage
12 V input models
24 V input models
48 V input models
4.5
11
24
8
16
33
9
18
36
Vdc
Vdc
Vdc
surge voltage
for maximum of 1 second
12 V input models
24 V input models
48 V input models
-0.7
-0.7
-0.7
25
50
100
Vdc
Vdc
Vdc
filter
pi filter
OUTPUT
parameter
conditions/description
typ
max
units
line regulation
full load, input voltage from low to high
min
±0.2
±0.4
%
load regulation
5% to 100% load
±0.2
±0.75
%
voltage accuracy
5% to 100% load
±1
±3
%
5V models
no-load output voltage accuracy
all other models
±1.5
±1.5
±5
±3
%
%
switching frequency
100% load, nominal input voltage (PFM mode)
350
transient recovery time
25% load step change
0.5
1
ms
transient response deviation
25% load step change
±2
±5
%
temperature coeffecient
100% load
±0.02
±0.03
%/°C
min
typ
max
units
min
typ
max
units
KHz
PROTECTIONS
parameter
conditions/description
short circuit protection
continuous, automatic recovery
SAFETY AND COMPLIANCE
parameter
conditions/description
isolation voltage
for 1 minute at 1 mA max.
1,500
Vdc
isolation resistance
at 500 Vdc
1,000
MΩ
conducted emissions
CISPR22/EN55022, class B (external circuit required, see Figure 1-b)
radiated emissions
CISPR22/EN55022, class B (external circuit required, see Figure 1-b)
ESD
IEC/EN61000-4-2, class B, contact ± 4kV
radiated immunity
IEC/EN61000-4-3, class A, 10V/m
EFT/burst
IEC/EN61000-4-4, class B, ± 2kV (external circuit required, see Figure 1-a)
surge
IEC/EN61000-4-5, class B, ± 2kV (external circuit required, see Figure 1-a)
conducted immunity
IEC/EN61000-4-6, class A, 3 Vr.m.s
voltage dips & interruptions
IEC/EN61000-4-29, class B, 0%-70%
MTBF
as per MIL-HDBK-217F @ 25°C
RoHS
2011/65/EU
1,000,000
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hours
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CUI Inc │ SERIES: PQM3-M │ DESCRIPTION: DC-DC CONVERTER
date 05/14/2014 │ 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
reflow soldering
min
typ
max
units
1.5 mm from case for 10 seconds
300
°C
see reflow soldering profile
240
°C
max
units
MECHANICAL
parameter
conditions/description
dimensions
23.86 x 13.70 x 8.00 (0.939 x 0.539 x 0.315 inch)
min
case material
epoxy resin (UL94-V0)
typ
mm
weight
5.2
g
MECHANICAL DRAWING
units: mm[inch]
tolerance: ±0.25[±0.010]
pin section tolerance: ±0.10[±0.004]
23.86±0.50[0.939±0.020]
16
2.54[0.100]
10 9
1
7
8
13.70[0.539]
15.24[0.600]
A
A
1.34
[0.053]
Side View
PIN CONNECTIONS
1.02[0.040]
0.50[0.020]
Front View
1
7
PCB Layout
Top View
8
2.50 [0.098]
10 9
19.42 [0.765]
16
Grid Size:
2.54mm x 2.54mm
1.20[0.047]
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0.25[0.010]
5 max
18.10 [0.713]
8.00
[0.315]
7.50
[0.295]
Top View
18.10±0.40[0.713±0.0016]
max 3.34[0.131]
PIN
Function
1
GND
7
NC
8
NC
9
+Vo
10
0V
16
Vin
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CUI Inc │ SERIES: PQM3-M │ DESCRIPTION: DC-DC CONVERTER
date 05/14/2014 │ page 4 of 6
DERATING CURVES
Temperature Derating Curve
Reflow Soldering Profile
250
Peak.Temp 240 C
10 Sec Max
60 Sec Max
(>220 C)
Load (%)
Tem per at ur e ( C )
100
220 C
200
150
100
80
60
Safe operating area
40
20
50
-40
0
-20
0
Tim e (s ec . )
20
40
60
85
Ambient Temperature (°C)
EMC RECOMMENDED CIRCUIT
Vi n
FU SE
LD M1
LD M2
Vi n
+
Figure 1
MO V
GND
TVS
C0
C1
(a)
EUT
C2
(b)
+Vo
L O AD
0V
GND
Recommended external circuit components
Vin (Vdc)
FUSE
Table 1
12
24
48
choose according to practical input current
MOV
--
10D560
10D101
LDM1
--
56μH
56μH
TVS
SMCJ28A
SMCJ48A
SMCJ90A
C0
680μF/25V
120μF/50V
120μF/100V
LDM2
12μH
12μH
12μH
C1
4.7μF/50V
4.7μF/50V
4.7μF/100V
C2
4.7μF/50V
4.7μF/50V
4.7μF/100V
TEST CONFIGURATION
Figure 2
Table 2
Oscilloscope
Lin
Cin
Lin(4.7µH)
External components
Current
Probe
DC DC
Load
Cin(220µF, ESR < 1.0Ω at 100 KHz)
Note: Input reflected-ripple current is measured with an inductor Lin and Capacitor Cin to simulate source impedance.
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Lin
4.7μH
Cin
220μF, ESR < 1.0Ω
at 100 KHz
105
120
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CUI Inc │ SERIES: PQM3-M │ DESCRIPTION: DC-DC CONVERTER
date 05/14/2014 │ 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 5% 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. Recommended circuit
This series has been tested according to the following recommended testing circuit before leaving the factory. This series should be
tested under load (see Figure 3 & Table 3). If you want to further decrease the input/output ripple, you can increase the capacitance
accordingly or choose capacitors with low ESR. 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).
+Vo
Vin
Figure 3
C in
DC
DC
Co ut
0V
GND
Table 3
Vin
(Vdc)
Table 4
Cin
(µF)
Cout
(µF/mA)
Vout
(Vdc)
Max. Capacitive Load
(μF)
12
100
24
10~47
10/100
5
3300
10/100
12
1800
48
10~47
10/100
15
1000
3. Input Current
When it is used in an unregulated condition, make sure that the input fluctuations and ripple voltage do not exceed the module standard. Refer to Figure 4 & Table 5 for the startup current of this dc-dc module.
Figure 4
Input Current(A)
Table 5
Ip
Input Voltage
Range
Vin
(Vdc)
Ip
(mA)
12
640
24
320
48
160
Input Voltage (V)
Note:
1. Minimum load shouldn't be less than 5%, otherwise ripple may increase dramatically. Operation under minimum load will not damage the converter, however, they may not meet all specifications listed.
2. Maximum capacitive load is tested at input voltage range and full load.
3. All specifications are measured at Ta=25°C, humidity<75%, nominal input voltage and rated output load unless otherwise specified.
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CUI Inc │ SERIES: PQM3-M │ DESCRIPTION: DC-DC CONVERTER
date 05/14/2014 │ page 6 of 6
REVISION HISTORY
rev.
description
date
1.0
initial release
03/19/2013
1.01
updated emc recommendations, updated spec
05/14/2014
The revision history provided is for informational purposes only and is believed to be accurate.
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