PYB20-Q48-S12 [CUI]
12 Vdc, 1.67 A, 20 W, 18~75 Vdc Input Range;型号: | PYB20-Q48-S12 |
厂家: | CUI INC |
描述: | 12 Vdc, 1.67 A, 20 W, 18~75 Vdc Input Range |
文件: | 总7页 (文件大小:382K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
date 08/15/2013
page 1 of 7
SERIES: PYB20 │ DESCRIPTION: DC-DC CONVERTER
FEATURES
• up to 20 W isolated output
• industry standard pinout
• 4:1 input range (9~36 V, 18~75 V)
• smaller package
• single/dual regulated outputs
• 1,500 Vdc isolation
• continuous short circuit, over current protection, over voltage protection
• temperature range (-40~85°C)
• six-sided metal shielding
• efficiency up to 90%
input
voltage
output
voltage
output
current
output
power
max
ripple
efficiency
MODEL
and noise1
typ
range
min
max
max
typ
(Vdc)
(Vdc)
(Vdc)
3.3
5
(mA)
(mA)
5000
4000
1667
1333
834
(W)
(mVp-p)
(%)
PYB20-Q24-S3
PYB20-Q24-S5
PYB20-Q24-S12
PYB20-Q24-S15
PYB20-Q24-S24
PYB20-Q24-D5
PYB20-Q24-D12
PYB20-Q24-D15
PYB20-Q48-S3
PYB20-Q48-S5
PYB20-Q48-S12
PYB20-Q48-S15
PYB20-Q48-S24
PYB20-Q48-D5
PYB20-Q48-D12
PYB20-Q48-D15
24
24
24
24
24
24
24
24
48
48
48
48
48
48
48
48
9~36
250
200
84
16.5
20
20
20
20
20
20
20
16.5
20
20
20
20
20
20
20
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
86
90
89
90
90
86
88
88
86
90
89
90
90
86
88
89
9~36
9~36
12
9~36
15
67
9~36
24
42
9~36
±5
±12
±15
3.3
5
±100
±42
±33
250
200
84
±2000
±834
±667
5000
4000
1667
1333
834
9~36
9~36
18~75
18~75
18~75
18~75
18~75
18~75
18~75
18~75
12
15
67
24
42
±5
±12
±15
±100
±42
±33
±2000
±834
±667
Notes:
1. Ripple and noise are measured at 20 MHz BW by “parallel cable” method
PART NUMBER KEY
PYB20 - QXX - XXX - X
Base Number
Heatsink
"blank" = no heatsink
H = with heatsink
Input Voltage
Output Voltage
Output
S = single
D = dual
cui.com
CUI Inc │ SERIES: PYB20 │ DESCRIPTION: DC-DC CONVERTER
date 08/15/2013 │ page 2 of 7
INPUT
parameter
conditions/description
min
typ
max
units
24 V input models
48 V input models
9
18
24
48
36
75
Vdc
Vdc
operating input voltage
24 V input models
48 V input models
9
17.8
Vdc
Vdc
start-up voltage
24 V input models
48 V input models
7.5
16
Vdc
Vdc
under voltage shutdown
for maximum of 1 second
24 V input models
48 V input models
surge voltage
-0.7
-0.7
50
100
Vdc
Vdc
start-up time
nominal input, constant load
10
1
ms
filter
pi filter
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)
CTRL1
mA
Note:
1. CTRL pin voltage is referenced to GND.
OUTPUT
parameter
conditions/description
min
typ
max
±0.5
±1
units
%
line regulation
load regulation
full load, input voltage from low to high
10% to 100% load
±0.2
±0.5
%
dual output models:
main output 50% load, secondary output from
10% to 100% load
cross regulation
±5
%
voltage accuracy
voltage balance2
adjustability3
±1
±3
±1
%
%
%
dual output, balanced loads
±0.5
±10
PWM mode, PYB20-Q24-S24
PWM mode, all other models
315
345
KHz
KHz
switching frequency
300
300
±3
transient recovery time
transient response deviation
temperature coefficient
25% load step change
25% load step change
100% load
500
±5
μs
%
±0.02
%/°C
Note:
2. For dual output models, unbalanced load can not exceed ±5%. If ±5% is exceeded it may not meet all specifications.
3. Output trimming available on single output models only.
PROTECTIONS
parameter
conditions/description
min
typ
max
units
short circuit protection
over current protection
hiccup, continuous, automatic recovery
160
%
3.3 Vdc output models
5 Vdc output models
12 Vdc output models
15 Vdc output models
24 Vdc output models
3.9
6.2
15
18
30
Vdc
Vdc
Vdc
Vdc
Vdc
over voltage protection
cui.com
CUI Inc │ SERIES: PYB20 │ DESCRIPTION: DC-DC CONVERTER
date 08/15/2013 │ page 3 of 7
SAFETY AND COMPLIANCE
parameter
conditions/description
for 1 minute at 1 mA max.
at 500 Vdc
min
typ
max
units
Vdc
isolation voltage
isolation resistance
conducted emissions
radiated emissions
ESD
1,500
1,000
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
radiated immunity
EFT/burst
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
surge
conducted immunity
voltage dips & interruptions
MTBF
IEC/EN61000-4-29, class B, 0%-70%
as per MIL-HDBK-217F @ 25°C
yes
1,000,000
hours
RoHS compliant
ENVIRONMENTAL
parameter
conditions/description
min
-40
-55
5
typ
max
85
units
°C
operating temperature
storage temperature
storage humidity
case temperature
vibration
see derating curve
125
95
°C
non-condensing
%
at full load, Ta=71°C
105
°C
10~55 Hz for 30 min. along X, Y and Z axis
10
G
SOLDERABILITY
parameter
conditions/description
min
typ
max
300
260
units
°C
hand soldering
wave soldering
1.5 mm from case for 10 seconds
see wave soldering profile
°C
Peak.Temp 260ćMax
Every Wave Soldering
Time 4 sec.Max
250
200
10 Sec Max
150
100
50
0
Time (sec.)
MECHANICAL
parameter
conditions/description
min
typ
max
units
board mount: 50.8 x 25.4 x 11.8
board mount with heatsink: 50.8 x 25.4 x 16.3
mm
mm
dimensions
case material
weight
aluminum alloy
board mount
board mount with heatsink
28
36
g
g
cui.com
CUI Inc │ SERIES: PYB20 │ DESCRIPTION: DC-DC CONVERTER
date 08/15/2013 │ page 4 of 7
MECHANICAL DRAWING
BOARD MOUNT
units: mm[inch]
tolerance: ±0.3[±0.012]
pin diameter tolerance: ±0.10[±0.004]
pin height tolerance: ±0.50[±0.020]
Grid Size: 2.54mm x 2.54mm
ꢂꢃꢁꢆꢃ>ꢉꢁꢃꢃꢃ@
ꢄ ꢀꢁꢂꢃ>ꢃꢁꢃꢂꢅ@
ꢉꢃꢁꢋꢉ>ꢃꢁꢆꢃꢃ@
PIN CONNECTIONS
5
4
3
Single
Output
Dual
Output
3
6
PIN
2
1
1
2
3
4
5
6
GND
Vin
GND
Vin
1
2
4
5
+Vo
Trim
0V
+Vo
0V
6
-Vo
Bottom View
CTRL
CTRL
PCB Layout
Top View
ꢀꢁꢃꢃ>ꢃꢁꢃꢋꢅ@
ꢇꢁꢀꢃ>ꢃꢁꢀꢈꢀ@
Front View
BOARD MOUNT WITH HEATSINK
units: mm[inch]
tolerance: ±0.3[±0.012]
pin diameter tolerance: ±0.10[±0.004]
pin height tolerance: ±0.50[±0.020]
Grid Size: 2.54mm x 2.54mm
ꢀꢁꢂꢃ
PIN CONNECTIONS
5
4
3
6
Single
Output
Dual
Output
PIN
1
2
1
2
3
4
5
6
GND
Vin
GND
Vin
+Vo
Trim
0V
+Vo
0V
Top View
-Vo
CTRL
CTRL
PCB Layout
Top View
Front View
cui.com
CUI Inc │ SERIES: PYB20 │ DESCRIPTION: DC-DC CONVERTER
date 08/15/2013 │ page 5 of 7
DERATING CURVES
Single Output Voltage ≤ 5 V
Single Output Voltage > 5 V
With heatsink
With heatsink
100
100
80
80
Without heatsink
Without heatsink
60
60
Safe operating area
Safe operating area
40
40
20
20
-40
-20
0
20
40
60 70 8085
-40
-20
0
20
40
60
75 85
Ambient Temperature (°C)
Ambient Temperature (°C)
Dual Output Voltage ≤ 5 V
Dual Output Voltage > 5 V
With heatsink
With heatsink
100
100
80
80
60
Without heatsink
Without heatsink
60
Safe operating area
Safe operating area
40
20
40
20
-40
-20
0
20
40
65 75 85
-40
-20
0
20
40
60 70 8085
Ambient Temperature (°C)
Ambient Temperature (°C)
EMC RECOMMENDED CIRCUIT
Figure 1
Table 1
Recommended external circuit components
Vin (Vdc)
FUSE
MOV
LDM1
TVS
24
48
CY2
LDM2
FUSE
MOV
V in
+Vo
Vin
Choose according to input current
LDM1
S14K35
56μH
S14K60
56μH
+
LOAD
EUT
C1
TVS
C0
SMCJ48A
330μF/50V
1μF/50V
4.7μH
SMCJ90A
330μF/100V
1μF/100V
4.7μH
-Vo
(0V)
GND
GND
C0
CY1
(b)
(a)
C1
LDM2
CY1
1nF/2KV
1nF/2KV
1nF/2KV
1nF/2KV
CY2
TEST CONFIGURATION
Oscilloscope
Lin
Table 2
External components
Figure 2
Current
Probe
Lin
4.7μH
Load
Cin
DC
DC
220μF, ESR < 1.0Ω
Cin
at 100 KHz
Note:
Input reflected-ripple current is measured with an inductor Lin and Capacitor Cin to simulate source impedance.
cui.com
CUI Inc │ SERIES: PYB20 │ DESCRIPTION: DC-DC CONVERTER
date 08/15/2013 │ page 6 of 7
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 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).
Figure 3
Single Output
Dual Output
Vin
+Vo
0V
Vin
+Vo
0V
Cout
Cout
Cin
Cin
Cout
DC DC
DC DC
GND
GND
-Vo
Table 3
Cout Dual Vout
Table 4
Max. Capacitive Load1
Single Vout
Cin
(ꢀF)
Cin
(ꢀF)
Cout1
(ꢀF)
Single Vout Max. Capacitive Load Dual Vout
(μF)
(Vdc)
3.3
5
(ꢀF)
470
470
220
220
100
(Vdc)
(Vdc)
3.3
5
(μF)
18700
9600
1600
1000
500
(Vdc)
100
100
100
100
100
--
--
--
--
--
4800
800
625
--
±5
100
100
100
--
220
100
100
--
5
12
±12
±15
--
12
12
15
--
15
15
24
24
Note:
1. For each output.
Note:
1. For each output.
2. Output voltage trimming
Leave open if not used.
Figure 4
Application Circuit for Trim pin
(part in broken line is the interior of models)
Formula for Trim Resistor
+Vo
+Vo
2
Vref
Vo’ - Vref
aR
-R
-R
3
3
up
down
:
:
R
R
T
=
a=
a=
R
R
1
2
R
2-a
R
1
aR
1
Vo’ - Vref
Vref
T
=
R
T
R
1
R
3
R
1-a
V
re f
Trim
R
3
V
ref
Trim
R
2
R
T
R
2
Note: Value for R1, R2, R3, and Vref refer to Table 5
RT: Trim Resistor
0V
Trim down
0V
Trim up
a: User-defined parameter, no actual meanings
Vo': The trim up/down voltage
Vout
(Vdc)
R1
(KΩ)
R2
(KΩ)
R3
(KΩ)
Vref
(V)
3.3
5
4.801 2.863
2.883 2.864
15
10
1.24
2.5
2.5
2.5
2.5
Table 5
12
15
24
10.971 2.864 17.8
14.497 2.864 17.8
24.872 2.863
20
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.
cui.com
CUI Inc │ SERIES: PYB20 │ DESCRIPTION: DC-DC CONVERTER
date 08/15/2013 │ page 7 of 7
REVISION HISTORY
rev.
description
date
1.0
initial release
updated spec
06/26/2013
08/15/2013
1.01
The revision history provided is for informational purposes only and is believed to be accurate.
Headquarters
20050 SW 112th Ave.
Tualatin, OR 97062
800.275.4899
Fax 503.612.2383
cui.com
techsupport@cui.com
CUI offers a two (2) year limited warranty. Complete warranty information is listed on our website.
CUI reserves the right to make changes to the product at any time without notice. Information provided by CUI is believed to be accurate and reliable. However, no responsibility is
assumed by CUI for its use, nor for any infringements of patents or other rights of third parties which may result from its use.
CUI products are not authorized or warranted for use as critical components in equipment that requires an extremely high level of reliability. A critical
component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to
affect its safety or effectiveness.
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