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07/08/2014
1 of 7
SERIES:
PQA30-T
│
DESCRIPTION:
DC-DC CONVERTER
FEATURES
• up to 30 W isolated output
• 2:1 input range (18~36 Vdc, 36~75 Vdc)
• smaller package
• single, regulated output
• 1,500 Vdc isolation
• short circuit, over current, and over voltage protections
• inverse polarity protection
• remote on/off
• operating temperature range (-40~85°C)
• six sided metal shielding
• efficiency up to 87%
MODEL
typ
(Vdc)
input
voltage
range
(Vdc)
output
voltage
(Vdc)
min
(A)
output
current
max
(A)
output
power
max
(W)
ripple
and noise
1
max
(mVp-p)
efficiency
typ
(%)
PQA30-D24-S3-T
PQA30-D24-S5-T
PQA30-D24-S9-T
PQA30-D24-S12-T
PQA30-D24-S15-T
PQA30-D24-S24-T
PQA30-D48-S3-T
PQA30-D48-S5-T
PQA30-D48-S12-T
PQA30-D48-S15-T
PQA30-D48-S24-T
Notes:
24
24
24
24
24
24
48
48
48
48
48
18~36
18~36
18~36
18~36
18~36
18~36
36~75
36~75
36~75
36~75
36~75
3.3
5
9
12
15
24
3.3
5
12
15
24
0.60
0.60
0.333
0.25
0.20
0.125
0.60
0.60
0.25
0.20
0.125
6
6
3.333
2.5
2
1.25
6
6
2.5
2
1.25
20
30
30
30
30
30
20
30
30
30
30
120
120
120
120
120
120
120
120
120
120
120
85
86
86
86
87
87
85
86
87
87
86
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
PQA30 - DXX - SXX - TX
Base Number
Input Voltage
Output Voltage
Mounting Type
T = Chassis Mount
Heatsink
"blank" = no heatsink
H = with heatsink
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SERIES:
PQA30-T
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DESCRIPTION:
DC-DC CONVERTER
date
07/08/2014
│
page
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INPUT
parameter
operating input voltage
start-up voltage
under voltage shutdown
surge voltage
start-up time
CTRL
1
filter
Note
conditions/description
24 Vdc input models
48 Vdc input models
24 Vdc input models
48 Vdc input models
24 Vdc input models
48 Vdc input models
for maximum of 1 second
24 Vdc input models
48 Vdc input models
nominal input, constant load
min
18
36
typ
24
48
17.8
35.8
max
36
75
18
36
units
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
16
32
-0.7
-0.7
10
50
100
Vdc
Vdc
ms
models ON (CTRL open or connect TTL high level, 2.5~12 Vdc)
models OFF (CTRL connect GND or low level, 0~1.2 Vdc)
input current (models OFF)
pi filter
1. CTRL pin voltage is referenced to GND.
1
mA
OUTPUT
parameter
line regulation
load regulation
voltage accuracy
adjustability
switching frequency
transient recovery time
transient response deviation
temperature coefficient
PWM mode
25% load step change
25% load step change
100% load
conditions/description
full load, input voltage from low to high
10% to 100% load
min
typ
±0.2
±0.5
±1
±10
300
300
±3
±0.02
500
±5
max
±0.5
±1
±3
units
%
%
%
%
kHz
μs
%
%/°C
PROTECTIONS
parameter
short circuit protection
over current protection
3.3 Vdc output models
5 Vdc output models
9 Vdc output models
12 Vdc output models
15 Vdc output models
24 Vdc output models
conditions/description
hiccup, automatic recovery
120
130
3.96
6
10.8
15
18
28
150
%
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
min
typ
max
units
over voltage protection
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SERIES:
PQA30-T
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DESCRIPTION:
DC-DC CONVERTER
date
07/08/2014
│
page
3 of 7
SAFETY AND COMPLIANCE
parameter
isolation voltage
isolation resistance
EMI/EMC
conducted emissions
radiated emissions
ESD
radiated immunity
EFT/burst
surge
conducted immunity
voltage dips & interruptions
MTBF
RoHS
Note
conditions/description
input to output for 1 minute at 1 mA max.
input to output at 500 Vdc
CE
1
min
1,500
1,000
typ
max
units
Vdc
MΩ
CISPR22/EN55022 class A (no circuit required); class B (external circuit required, see Figure 1-b)
CISPR22/EN55022 class A (no circuit required); 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
1,000,000
hours
1. CE mark is only on models without heatsink.
ENVIRONMENTAL
parameter
operating temperature
storage temperature
storage humidity
case temperature
vibration
non-condensing
at full load, operating temperature curve range
10~55Hz, 30 min. along x, y, and z axis
conditions/description
see derating curves
min
-40
-55
5
typ
max
85
125
95
105
10
units
°C
°C
%
°C
G
MECHANICAL
parameter
dimensions
case material
weight
conditions/description
chassis mount: 76.0 x 31.5 x 21.2
chassis mount with heatsink: 76.0 x 31.5 x 25.1
aluminum alloy
chassis mount
chassis mount with heatsink
44
57
g
g
min
typ
max
units
mm
mm
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SERIES:
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DESCRIPTION:
DC-DC CONVERTER
date
07/08/2014
│
page
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MECHANICAL DRAWING
CHASSIS MOUNT
units: mm[inch]
tolerance: ±0.50[±0.020]
wire range: 24~12 AWG
PIN CONNECTIONS
PIN
1
2
3
4
5
6
Function
Ctrl
GND
Vin
Trim
0V
+Vo
Top View
Front View
CHASSIS MOUNT WITH HEATSINK
units: mm[inch]
tolerance: ±0.50[±0.020]
wire range: 24~12 AWG
PIN CONNECTIONS
PIN
1
2
3
4
5
6
Function
Ctrl
GND
Vin
Trim
0V
+Vo
Top View
Front View
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SERIES:
PQA30-T
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DESCRIPTION:
DC-DC CONVERTER
date
07/08/2014
│
page
5 of 7
DERATING CURVES
Output Voltage ≤ 5V
With heatsink
Output Voltage > 5V
With heatsink
100
100
Load (%)
Load (%)
80
60
40
20
Without heatsink
80
60
40
20
Without heatsink
Safe operating area
Safe operating area
-40
-20
0
20
40 50 60
85
100
-40
-20
0
20
40
55 65
85
100
Ambient Temperature (°C)
Ambient Temperature (°C)
EMC RECOMMENDED CIRCUIT
Table 1
Figure 1
FU SE
L DM1
L CM1
C Y1
V IN
C1
C2
+ Vo
Recommended external circuit components
Vin (Vdc)
FUSE
MOV
LO AD
0V
24
S14K35
56µH
SMCJ48A
330µF/50V
4.7µF/50V
1mH
1nF/2kV
48
S14K60
56µH
SMCJ90A
330µF/100V
2.2µF/100V
1mH
1nF/2kV
choose according to input current
Vi n
MO V
G ND
TVS
C0
EUT
GND
LDM1
TVS
C0
C1, C2
LCM1
CY1, CY2
(a)
(b)
C Y2
TEST CONFIGURATION
Figure 2
Table 2
Oscilloscope
Lin
Cin
Current
Probe
External components
Lin
4.7μH
220μF, ESR < 1.0Ω
at 100 kHz
DC DC
Load
Cin
Note:
Lin(4.7µH)
1. Input reflected-ripple current is measured with an inductor Lin and Capacitor Cin to simulate source impedance.
Cin(220µF, ESR < 1.0Ω at 100 KHz)
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