• continuous short circuit, over voltage protection
• reverse polarity protection on chassis mount (-T) option
• temperature range (-40~85°C)
• six-sided metal shielding
• 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
2
typ
(%)
PYB10-Q24-S3
PYB10-Q24-S5
PYB10-Q24-S12
PYB10-Q24-S15
PYB10-Q24-S24
PYB10-Q24-D5
PYB10-Q24-D12
PYB10-Q24-D15
PYB10-Q48-S3
PYB10-Q48-S5
PYB10-Q48-S12
PYB10-Q48-S15
PYB10-Q48-S24
PYB10-Q48-D5
PYB10-Q48-D12
PYB10-Q48-D15
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
120
100
42
33
21
±50
±21
±16
120
100
42
33
21
±50
±21
±16
2400
2000
833
667
416
±1000
±416
±333
2400
2000
833
667
416
±1000
±416
±333
8
10
10
10
10
10
10
10
8
10
10
10
10
10
10
10
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
79
82
86
87
87
83
86
88
79
82
86
87
87
83
86
88
1. Ripple and noise are measured at 20 MHz BW by “parallel cable” method
2. Efficiency is approximately 2% lower for Chassis Mount (-T) models.
PART NUMBER KEY
PYB10 - QXX -
XXX
-
X
Base Number
Mounting Type
T = Chassis mount
U = U-Frame
Input Voltage
Output Voltage
Output
S = single
D = dual
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product page.
CUI Inc
│
SERIES:
PYB10-T & PYB10-U
│
DESCRIPTION:
DC-DC CONVERTER
date
08/16/2013
│
page
2 of 6
INPUT
parameter
operating input voltage
start-up voltage
surge voltage
fi
lter
CTRL
1
Note:
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
min
9
18
typ
24
48
max
36
75
9
18
units
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
-0.7
-0.7
50
100
models ON (CTRL open or connect high level, 3.5-12 Vdc)
models OFF (CTRL connect GND or low level, 0-1.2 Vdc)
input current (models OFF)
1. CTRL pin voltage is referenced to GND.
1
3
mA
OUTPUT
parameter
line regulation
load regulation
cross regulation
voltage accuracy
voltage balance
2
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 models:
main output 50% load, secondary output from
10% to 100% load
min
typ
±0.2
±0.5
max
±0.5
±1
±5
units
%
%
%
%
%
KHz
μs
%
%/°C
±1
dual output, balanced loads
PWM mode
25% load step change
25% load step change
100% load
±0.5
350
300
±3
±2
±1.5
500
±5
±0.03
2. 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 voltage protection
conditions/description
continuous, automatic recovery
110
120
140
%Vo
min
typ
max
units
SAFETY AND COMPLIANCE
parameter
isolation voltage
isolation resistance
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
min
1,500
1,000
typ
max
units
Vdc
MΩ
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
yes
1,000,000
hours
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For more information, please visit the
product page.
CUI Inc
│
SERIES:
PYB10-T & PYB10-U
│
DESCRIPTION:
DC-DC CONVERTER
date
08/16/2013
│
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
MECHANICAL
parameter
dimensions
case material
weight
conditions/description
chassis mount: 76.0 x 31.5 x 21.2
U-Frame: 52.32 x 54.99 x 19.05
aluminum alloy
chassis mount
U-Frame
44
58
g
g
min
typ
max
units
mm
mm
MECHANICAL DRAWING
CHASSIS MOUNT
units: mm[inch]
tolerance: ±0.5[±0.020]
Wire range: 24~12 AWG
PIN CONNECTIONS
PIN
1
2
3
4
5
6
Single
Output
CTRL
GND
Vin
0V
NC
+Vo
Dual
Output
CTRL
GND
Vin
-Vo
0V
+Vo
1
2
3
4
5
6
Top View
Front View
54.99 2.165
4.75 0.187
(2 PLCS)
3.51 0.138
(2 PLCS)
0.079 X 0.157
[2.01 X 3.99]
(2 PLCS)
20.32 0.800
0.010 (2 PLCS)
R1.76 0.069
(2 PLCS)
U-FRAME
units: mm[inch]
tolerance: ±0.5[±0.020]
Wire range: 22~14 AWG
DIN rail mounting kit available
(part# STK-DIN)
52.32 2.060
PIN CONNECTIONS
PIN
1
2
3
4
5
6
7
8
Single
Output
GND
Vin
CTRL
Case
NC
+Vo
NC
0V
Dual
Output
GND
Vin
CTRL
Case
NC
+Vo
0V
-Vo
4.01 0.158
0.010 (TYP)
19.05 0.750
1.00 0.039
(TYP)
1
2
3
4
5
6
7
8
34.01 1.339
0.010
34.93 1.375
0.010
9.16 0.361
0.010
33.02 1.300
0.010 (2 PLCS)
12.19 0.480
5.31 0.209
(5 PLCS)
M3X4
(5 PLCS)
Top View
52.99 2.086
5.21 0.205
(2 PLCS)
10.99 0.433
0.010 (2 PLCS)
Bottom View
Front View
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product page.
CUI Inc
│
SERIES:
PYB10-T & PYB10-U
│
DESCRIPTION:
DC-DC CONVERTER
date
08/16/2013
│
page
4 of 6
DERATING CURVES
Temperature Derating Curve
100
Load (%)
80
60
Safe operating area
40
20
-40
-20
0
20
40
60 71
85
Ambient Temperature (°C)
EMC RECOMMENDED CIRCUIT
FUSE
V in
LDM1
+
MOV
GND
(a)
(b)
CY2
LDM2
C1
Vin
+Vo
Figure 1
TVS
C0
EUT
GND
CY1
LOAD
-Vo
(0V)
Table 1
Recommended external circuit components
Vin (Vdc)
FUSE
MOV
LDM1
TVS
C0
C1
LDM2
CY1
CY2
24
S14K35
56μH
SMCJ48A
330μF/50V
1μF/50V
4.7μH
1 nF/2 KV
1 nF/2 KV
48
S14K60
56μH
SMCJ90A
330μF/100V
1μF/100V
4.7μH
1 nF/2 KV
1 nF/2 KV
Choose according to input current
TEST CONFIGURATION
Oscilloscope
Lin
Figure 2
Lin
Table 2
External components
4.7μH
220μF, ESR < 1.0Ω
at 100 KHz
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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product page.
CUI Inc
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SERIES:
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│
DESCRIPTION:
DC-DC CONVERTER
date
08/16/2013
│
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
Vin
Cin
Dual O utput
+Vo
Vin
Cin
+Vo
C out
DC DC
C out
DC DC
GND
0V
GND
Cout
0V
-Vo
Table 3
Vin
(Vdc)
24
48
Cin
(μF)
10~47
10~47
Cout
(μF)
10
10
Single
Vout
(Vdc)
3.3
5
12
15
24
Notes:
1.
2.
3.
4.
Table 4
Max.
Capacitive
Load
(μF)
2200
2200
470
1
330
2
100
330
μF
for 48Vin.
220
μF
for 48Vin.
150
μF
for 48Vin.
For each output.
Dual
Vout
(Vdc)
--
5
12
15
--
Max.
Capacitive
Load
4
(μF)
--
680
220
3
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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