• continuous short circuit, over current protection
• six-sided shielded case
• temperature range (-40~85°C)
• high efficiency at light load
• efficiency up to 88%
MODEL
typ
(Vdc)
input
voltage
range
(Vdc)
output
voltage
(Vdc)
min
(mA)
output
current
max
(mA)
output
power
max
(W)
ripple
and noise
1
max
(mVp-p)
efficiency
typ
(%)
PQD6-Q24-S3-D
PQD6-Q24-S5-D
PQD6-Q24-S12-D
PQD6-Q24-S15-D
PQD6-Q24-S24-D
PQD6-Q24-D5-D
PQD6-Q24-D12-D
PQD6-Q24-D15-D
PQD6-Q48-S3-D
PQD6-Q48-S5-D
PQD6-Q48-S12-D
PQD6-Q48-S15-D
PQD6-Q48-S24-D
PQD6-Q48-D5-D
PQD6-Q48-D12-D
PQD6-Q48-D15-D
Notes:
24
24
24
24
24
24
24
24
48
48
48
48
48
48
48
48
9~36
9~36
9~36
9~36
9~36
9~36
9~36
9~36
18~75
18~75
18~75
18~75
18~75
18~75
18~75
18~75
3.3
5
12
15
24
±5
±12
±15
3.3
5
12
15
24
±5
±12
±15
75
60
25
20
12
±30
±12
±10
75
60
25
20
12
±30
±12
±10
1500
1200
500
400
250
±600
±250
±200
1500
1200
500
400
250
±600
±250
±200
5
6
6
6
6
6
6
6
5
6
6
6
6
6
6
6
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
79
83
87
88
88
83
87
88
79
83
87
88
88
83
87
88
1. ripple and noise are measured at 20 MHz BW by “parallel cable” method
PART NUMBER KEY
PQD6 - QXX -
XXX
-D
Base Number
Input Voltage
Output
S = single
D = dual
Output Voltage
Packaging Style
DIP
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│
SERIES:
PQD6-D
│
DESCRIPTION:
DC-DC CONVERTER
date
10/29/2013
│
page
2 of 6
INPUT
parameter
operating input voltage
start-up voltage
surge voltage
fi
lter
no-load power consumption
conditions/description
24 V input models
48 V input models
24 V input models
48 V input models
for maximum of 1 second
24 V input models
48 V input models
pi
fi
lter
0.15
0.3
W
-0.7
-0.7
min
9
18
typ
24
48
max
36
75
9
18
50
100
units
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
OUTPUT
parameter
line regulation
load regulation
cross regulation
voltage accuracy
voltage balance
1
switching frequency
transient recovery time
transient response deviation
temperature coefficient
Note:
conditions/description
full load, input voltage from low to high
5% to 100% load
dual output
main output 50% load, secondary output 10%-
100% load
min
typ
±0.2
±0.5
max
±0.5
±1
±5
units
%
%
%
%
%
KHz
μs
%
%/°C
±1
dual output, balanced loads
25% load step change
25% load step change
100% load
±0.5
300
300
±3
±2
±1.5
500
±5
±0.03
1. For dual output models, unbalanced load can not exceed ±5%. If ±5% is exceeded, it may not meet all specifications.
PROTECTIONS
parameter
short circuit protection
over current protection
over voltage protection
conditions/description
continuous, automatic recovery
120
110
180
140
%lo
%Vo
min
typ
max
units
SAFETY AND COMPLIANCE
parameter
isolation voltage
isolation resistance
isolation capacitance
safety approvals
conducted emissions
radiated emissions
ESD
radiated immunity
EFT/burst
surge
conducted immunity
voltage dips & interruptions
MTBF
RoHS compliant
conditions/description
for 1 minute at 1 mA max.
at 500 Vdc
input to output, 100 KHz/0.1 V
CE
CISPR22/EN55022, class A, class B (external circuit required, see Figure 1-b)
CISPR22/EN55022, class A, class B (external circuit required, see Figure 1-b)
IEC/EN61000-4-2, class B, contact ± 4kV
IEC/EN61000-4-3, class A, 10V/m
IEC/EN61000-4-4, class B, ± 2kV (external circuit required, see Figure 1-a)
IEC/EN61000-4-5, class B, ± 2kV (external circuit required, see Figure 1-a)
IEC/EN61000-4-6, class A, 3 Vr.m.s
IEC/EN61000-4-29, class B, 0%-70%
as per MIL-HDBK-217F @ 25°C
2011/65/EU
cui.com
1,000,000
hours
min
1,500
1,000
1,000
typ
max
units
Vdc
MΩ
pF
For more information, please visit the
product page.
CUI Inc
│
SERIES:
PQD6-D
│
DESCRIPTION:
DC-DC CONVERTER
date
10/29/2013
│
page
3 of 6
ENVIRONMENTAL
parameter
operating temperature
storage temperature
storage humidity
case temperature
vibration
non-condensing
at full load, Ta=71°C
10~55 Hz for 30 min. along X, Y, and Z axis
10
conditions/description
see derating curve
min
-40
-55
5
typ
max
85
125
95
105
units
°C
°C
%
°C
G
SOLDERABILITY
parameter
hand soldering
wave soldering
conditions/description
1.5 mm from case for 10 seconds
see wave soldering profile
min
typ
max
300
260
units
°C
°C
MECHANICAL
parameter
dimensions
case material
weight
conditions/description
25.40 x 25.40 x 11.70 (1.00 x 1.00 x 0.461 inch)
aluminum alloy
14
g
min
typ
max
units
mm
MECHANICAL DRAWING
units: mm[inch]
tolerance: ±0.25[±0.010]
pin diameter tolerance: ±0.10[±0.004]
pin height tolerance: ±0.50[±0.020]
∅
1.50 [0.059]
11.70 [0.461]
4.10 [0.161]
5
4
3
Grid Size:
2.54mm x 2.54mm
∅
1.00 [0.039]
Front View
1
2
25.40 [1.000]
20.32 [0.800]
PCB Layout
Top View
3
4
5
PIN CONNECTIONS
20.32 [0.800]
25
.40 [1.000]
PIN
1
2
3
4
5
Single Output
GND
Vin
+Vo
NO PIN
0V
Dual Output
GND
Vin
+Vo
0V
-Vo
2
1
5.08 [0.200]
Bottom View
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DESCRIPTION:
DC-DC CONVERTER
date
10/29/2013
│
page
4 of 6
DERATING CURVES
Wave Soldering Profile
Peak Temp. 260°C Max.
250
Wave Soldering Time
4 Sec. Max.
Temperature Derating Curve
100
80
60
200
Temperature (°C)
10 Sec. Max.
150
Load (%)
Safe operating area
40
20
100
50
0
Time (sec.)
-40
-20
0
20
40
60 71
85
100
Ambient Temperature (°C)
EMC RECOMMENDED CIRCUIT
FUSE
V in
LDM1
LDM2
CY2
Vin
+
MOV
GND
TVS
C0
C1
+Vo
Figure 1
EUT
GND
LOAD
(a)
(b)
CY1
-Vo
(0V)
Table 1
Recommended external circuit components
Vin (Vdc)
FUSE
MOV
LDM1
TVS
C0
C1
LDM2
CY1
CY2
24
10D560K
56μH
SMCJ48A
120μF/50V
225K/50V
4.7μH
102K/2000V
102K/2000V
48
10D101K
56μH
SMCJ90A
120μF/100V
225K/100V
4.7μH
102K/2000V
102K/2000V
choose according to practical input current
TEST CONFIGURATION
Figure 2
Table 2
External components
Lin
4.7μH
220μF, ESR < 1.0Ω
at 100 KHz
Oscilloscope
Lin
Cin
Current
Probe
DC DC
Load
Cin
Note: Input reflected-ripple current is measured with an inductor Lin and Capacitor Cin to simulate source impedance.
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SERIES:
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DESCRIPTION:
DC-DC CONVERTER
date
10/29/2013
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page
5 of 6
APPLICATION NOTES
1.
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). If you want to further decrease the input/output ripple, you can increase the capacitance accord-
ingly or choose capacitors with low ESR (see Table 3). 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 4).
Figure 3
Single Output
Dual Output
Vin
Cin
+Vo
Vin
Cin
+Vo
DC
DC
0V
GND
DC
DC
0V
-Vo
GND
Table 3
Vin
(Vdc)
24
48
Cin
(μF)
100
10~47
Cout
(μF)
10
10
Single Vout
(Vdc)
3.3
5
12
15
24
Note:
1. For each output.
Table 4
Max. Capacitive Load
(μF)
1800
1000
100
100
47
Dual Vout
(Vdc)
--
±5
±12
±15
--
Max. Capacitive Load
1
(μF)
--
470
100
100
--
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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