Datasheet

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date
08/29/2012
page
1 of 6
SERIES: VYB15W │ DESCRIPTION: DC-DC CONVERTER
up to 15W output
industry standard pinout
4:1 input range (9 ~ 36 V, 18 ~ 75 V)
single and dual outputs
1,500 V isolation
short circuit, over current, and over voltage protections
wide temperature operation (-40 ~ 85°C)
efficiency up to 87%
U
•
•
•
•
•
•
•
•
ED
FEATURES
input
voltage
output
voltage
range
(Vdc)
(Vdc)
min
(mA)
3.3
VYB15W-Q24-S3
9 ~ 36
VYB15W-Q24-S5
9 ~ 36
VYB15W-Q24-S12
9 ~ 36
9 ~ 36
9 ~ 36
output
power
ripple1
noise1
efficiency
max
(mA)
max
(W)
max
(mVp-p)
max
(mVp-p)
typ
(%)
400
4,000
13.2
150
150
80
5
300
3,000
15
150
150
82
12
125
1,250
15
150
150
85
15
100
1,000
15
150
150
85
±5
±150
±1,500
15
50
100
86
N
VYB15W-Q24-S15
VYB15W-Q24-D5
output
current
TI
MODEL
N
RoHS
9 ~ 36
±12
±63
±625
15
50
100
87
9 ~ 36
±15
±50
±500
15
50
100
87
VYB15W-Q48-S3
18 ~ 75
3.3
400
4,000
13.2
150
150
81
VYB15W-Q48-S5
18 ~ 75
5
300
3,000
15
150
150
83
VYB15W-Q48-S12
VYB15W-Q48-S15
VYB15W-Q48-D5
18 ~ 75
12
125
1,250
15
150
150
85
18 ~ 75
15
100
1,000
15
150
150
85
18 ~ 75
±5
±150
±1,500
15
50
100
84
18 ~ 75
±12
±63
±625
15
50
100
87
18 ~ 75
±15
±50
±500
15
50
100
87
IS
C
VYB15W-Q48-D12
O
VYB15W-Q24-D12
VYB15W-Q24-D15
VYB15W-Q48-D15
Notes:
1. Ripple and noise are measured at 20 MHz BW with 10μF tantalum capacitor and 1μF ceramic capacitor across output
D
PART NUMBER KEY
VYB15W - QXX - X XX - X
Output
S = single output
D = dual output
Base Number
Input Voltage
Output Voltage
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Heatsink
"blank" = No
H = Yes
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CUI Inc │ SERIES: VYB15W │ DESCRIPTION: DC-DC CONVERTER
date 08/29/2012 │ page 2 of 6
INPUT
conditions/description
operating input voltage
min
typ
max
units
9
18
24
48
36
75
Vdc
Vdc
start-up time
10
dual output models
power
power
power
power
Remote on/off1
all models
single output models
dual output models
filter
single output models, LC
dual output models, PI type
Notes:
up 24 V input
up 48 V input
down 24 V input
down 48 V input
9.0
17.8
7.8
16.0
module off
module on (or open circuit)
module on (or open circuit)
0
3.5
3.5
Vdc
Vdc
Vdc
Vdc
1.2
40
12
Vdc
Vdc
Vdc
U
dual output models
under voltage lockout
ms
ED
parameter
1. The on/off pin voltage is referenced to GND
N
OUTPUT
parameter
conditions/description
typ
max
units
line regulation
measured from low line to high line
min
±0.2
±0.5
%
±0.5
±1
%
±1
±3
%
200
500
μs
±2
±3
±5
±5
%
%
±5
%
measured from 10% to full load
refer to recommended circuit
transient recovery time
25% step load charge
transient peak deviation
single output models
dual output models
cross regulation
dual output models
TI
load regulation
voltage accuracy
25% rated load
N
main output 55%,
supplemental output from
10~100% load
single output models
switching frequency
100% load, input voltage range
single output models
dual output models
temperature coefficient
PROTECTIONS
parameter
conditions/description
over current protection
single output models
dual output models
input voltage range
input voltage range
single output models
3.3 V
5V
12 V
15 V
±5 V
±12 V
±15 V
Vdc
300
400
kHz
kHz
±0.02
%/°C
min
typ
max
units
120
120
130
140
150
150
%
%
dual output models
3.9
6.2
15
18
±6.1
±15
±18
D
over voltage protection
±10%
hiccups, continuous, automatic recovery
IS
C
short circuit protection
O
adjustability
cui.com
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
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CUI Inc │ SERIES: VYB15W │ DESCRIPTION: DC-DC CONVERTER
date 08/29/2012 │ page 3 of 6
SAFETY AND COMPLIANCE
conditions/description
isolation voltage
tested for 1 minute at 1 mA max.
1,500
min
Vdc
isolation resistance
at 500 Vdc
1,000
MΩ
isolation capacitance
input to output, 100 kHz / 0.1 V
single output models
dual output models
RoHS compliant
yes
MTBF
M1L-HDBK-217F
max
pF
pF
1,000,000
min
hours
typ
U
conditions/description
case operating temperature
max
units
85
°C
105
°C
125
°C
-40
maximum case temperature
during operation
storage temperature
-55
non-condensing
temperature rise
100% load
5
lead temperature
1.5 mm from the case for 10 seconds
TI
N
storage humidity
DERATING CURVES
units
1,000
2,000
ENVIRONMENTAL
parameter
typ
ED
parameter
95
%
40
°C
300
°C
output power vs. ambient temperature
N
single output models
100
dual output models
100
2
80
Load (%)
1
60
O
≤5V models
Load (%)
2
80
40
40
20
-40
0
20
30
40
50
1
60
20
60
70
80
-40
0
20
IS
C
Ambient Temperature (°C)
D
Load (%)
100
>5V models
80
2
1
60
40
20
-40
0
20
30
40
50
60
30
40
50
60
Ambient Temperature (°C)
70
80
Ambient Temperature (°C)
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1
without heat sink
2
with heatsink
70
80
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CUI Inc │ SERIES: VYB15W │ DESCRIPTION: DC-DC CONVERTER
date 08/29/2012 │ page 4 of 6
MECHANICAL
conditions/description
dimensions
2.00 x 1.00 x 0.44 inch (50.8 x 25.4 x 11.2mm)
case material
nickel-coated copper (six-sided)
weight
min
typ
max
units
ED
parameter
40
55
with heat sink
MECHANICAL DRAWING
g
g
RECOMMENDED FOOTPRINT (TOP VIEW)
TI
10.16 0.400
3
7.62 0.300
2
4
4
2
3
+0.031
25.40+0.80
-0.00 [1.000 -0.000 ]
1
2.54[0.100]
5
2.54[0.100]
20.32[0.800]
80
+0. 031
50.80 +0.
-0.00 [2.000 -0.000 ]
Pin section tolerances:±0.10m m[±0.004inch]
General tolerances:±0.25m m [±0.010inch]
5.08 0.200
5
10.16 0.400
O
N
BOTTOM VIEW
THERMAL PAD
25.40 1.000
PIN CONNECTIONS
Pin
S ingle
Dual
1
2
3
4
5
GND
Vin
+ Vo
Trim
0V
GND
Vin
+ Vo
0V
-Vo
6
On/Off
On/Off
*Pin 6 added for optional Remote on/off
IS
C
HEATSINK
CLAMP
17.50 0.689
D
50.80 2.000
6
24.90 0.980
1
6
N
20.32 0.800
∅1.20 [0.047]
U
4.10 0.161
1.00 0.039
5.08[0.200]
3.50 0.138
10.16[0.400]
11.80 0.465
20.32[0.800]
11.20 0.441
22.50 0.886
MAX
30.00 1.181
MAX
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CUI Inc │ SERIES: VYB15W │ DESCRIPTION: DC-DC CONVERTER
date 08/29/2012 │ page 5 of 6
APPLICATION NOTES
Requirement on Output Load
In order to ensure the product operates efficiently and reliably, make sure the specified range of input voltage is not exceeded and the
minimum output load is not less than 10% load. If the actual load is less than the specified minimum load, the output ripple may
increase sharply while its efficiency and reliability will reduce greatly. If the actual output power is very small, please add an
appropriate resistor as extra loading.
2.
Recommended Circuit
The VYB15W series has been tested according to the following recommended testing circuit. This series should be tested under load.
(see Figure 1)
Single Output
DC
+Vo
C out
C in
0V
G ND
DC
DC
U
DC
Cin
Cout
0V
C out
GND
N
Figure 1
Dual Output
Vin
+Vo
Vin
ED
1.
-Vo
If you want to further decrease the input/output ripple, you can increase capacitance properly or choose capacitors with low ESR. If
the capacitance is too big, a startup problem might arise. The maximum allowable capacitance to ensure safe and reliable operation is
listed in Table 1.
Table 1
Cout
(μF)
Cin
(μF)
Dual Vout
(Vdc)
TI
Single Vout
(Vdc)
Cout
(μF)
Cin
(μF)
3.3
470
100
--
--
100
5
470
100
±5
±220
100
12
220
100
±12
±100
100
15
220
100
±15
±100
100
O
N
3. Trim Application and Trim Resistance (Single Output Models)
Formula for trim resistance
Application circuit for TRIM (Part in broken line is the interior of models)
a=
Vref
R1
Vo’-Vref
down: R T =
aR1
-R3
R 1-a
a=
Vo’-Vref
R2
Vref
IS
C
Note: Value for R1, R2, R3, and Vref refer to the following table.
R1
R2
aR2
-R3
R 2-a
+Vo
+Vo
V ref
up: R =
R3
RT
R1
Trim
V ref
R T: Trim resistance
R3
Trim
a: User-defined parameter, no actual meaning.
Vo’: Trim up/down voltage.
RT
R2
Vo
3.3 (Vdc)
5 (Vdc)
12 (Vdc)
15 (Vdc)
Resistance
0V
R1 (KΩ)
4.801
2.883
10.971
14.497
Trimup
Trimdown
R2 (KΩ)
2.863
2.864
2.864
2.864
R3 (KΩ)
15
10
17.8
17.8
Vref (V)
1.24
2.5
2.5
2.5
D
0V
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CUI Inc │ SERIES: VYB15W │ DESCRIPTION: DC-DC CONVERTER
date 08/29/2012 │ page 6 of 6
REVISION HISTORY
description
date
1.0
initial release
08/08/2011
1.01
V-Infinity branding removed
ED
rev.
08/29/2012
D
IS
C
O
N
TI
N
U
The revision history provided is for informational purposes only and is believed to be accurate.
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Fax 503.612.2383
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