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VWRBT2_12

型号：

VWRBT2_12

描述：

DC-DC变换器[ DC-DC CONVERTER ]

品牌：

CUI[ CUI INC ]

页数：

5 页

PDF大小：

212 K

下载PDF手册
date 11/01/2012  
page 1 of 5  
SERIES: VWRBT2 │ DESCRIPTION: DC-DC CONVERTER  
FEATURES  
• 2 W isolated output  
• wide input (2:1)  
• industry standard 16 pin SMT package style  
• single regulated outputs  
• 1,500 V isolation  
• short circuit protection  
• wide temperature (-40~85°C)  
• efficiency up to 80%  
RoHS  
input  
voltage  
output  
voltage  
output  
current  
output  
power  
max  
ripple  
efficiency  
MODEL  
and noise1  
typ  
range  
min  
max  
typ  
typ  
(Vdc)  
(Vdc)  
(Vdc)  
3.3  
5
(mA)  
50  
40  
22  
16  
13  
50  
40  
22  
16  
13  
(mA)  
(W)  
(mVp-p)  
(%)  
VWRBT2-D12-S3.3-SMT  
VWRBT2-D12-S5-SMT  
VWRBT2-D12-S9-SMT  
VWRBT2-D12-S12-SMT  
VWRBT2-D12-S15-SMT  
VWRBT2-D24-S3.3-SMT  
VWRBT2-D24-S5-SMT  
VWRBT2-D24-S9-SMT  
VWRBT2-D24-S12-SMT  
VWRBT2-D24-S15-SMT  
12  
12  
12  
12  
12  
24  
24  
24  
24  
24  
9~18  
500  
400  
222  
167  
133  
500  
400  
222  
167  
133  
2
2
2
2
2
2
2
2
2
2
35  
35  
35  
35  
35  
35  
35  
35  
35  
35  
70  
74  
76  
78  
79  
72  
76  
78  
80  
80  
9~18  
9~18  
9
9~18  
12  
15  
3.3  
5
9~18  
18~36  
18~36  
18~36  
18~36  
18~36  
9
12  
15  
Notes:  
1. ripple and noise are measured at 20 MHz BW  
PART NUMBER KEY  
VWRBT2 - DXX - SXX -SMT - X  
Base Number  
Output Voltage  
Package Options  
"blank" = standard  
TR = Tape & Reel  
Input Voltage  
Packaging Style  
cui.com  
CUI Inc │ SERIES: VWRBT2 │ DESCRIPTION: DC-DC CONVERTER  
date 11/01/2012 │ page 2 of 5  
INPUT  
parameter  
conditions/description  
min  
typ  
max  
units  
12 V input  
24 V input  
9
18  
12  
24  
18  
36  
Vdc  
Vdc  
operating input voltage  
OUTPUT  
parameter  
conditions/description  
measured from low line to high line  
measured from 10% to 100% full load  
positive  
min  
typ  
max  
±0.5  
±1  
units  
%
line regulation  
load regulation  
±0.2  
±0.5  
%
±1  
±3  
±3  
±5  
%
%
voltage accuracy  
refer to recommended circuit  
negative  
ripple & noise  
35  
150  
mVp-p  
kHz  
switching frequency  
temperature coefficient  
100% load, nominal input voltage  
300  
±0.03  
%/°C  
PROTECTIONS  
parameter  
conditions/description  
min  
typ  
max  
max  
units  
short circuit protection  
continuous, automatic recovery  
SAFETY AND COMPLIANCE  
parameter  
conditions/description  
min  
typ  
units  
Vdc  
MΩ  
isolation voltage  
insulation resistance  
isolation capacitance  
RoHS compliant  
MTBF  
tested for 1 minute, at 1 mA max.  
1,500  
1,000  
at 500 Vdc  
input to output  
yes  
85  
pF  
1,000,000  
hours  
ENVIRONMENTAL  
parameter  
conditions/description  
min  
-40  
-55  
typ  
max  
85  
units  
°C  
operating temperature  
storage temperature  
storage humidity  
125  
95  
°C  
non-condensing  
at full load  
%
temperature rise  
15  
°C  
lead temperature  
for 10 seconds  
300  
°C  
cui.com  
CUI Inc │ SERIES: VWRBT2 │ DESCRIPTION: DC-DC CONVERTER  
date 11/01/2012 │ page 3 of 5  
DERATING CURVES  
100  
80  
60  
40  
20  
-40  
-20  
0
20  
40  
60 71  
85  
100  
120  
Ambient Temperature (°C)  
MECHANICAL  
parameter  
dimensions  
conditions/description  
min  
typ  
max  
units  
0.939 x 0.713 x 0.315 (23.86 x 18.10 x 8.10 mm)  
UL94-V0 epoxy resin  
inch  
case material  
weight  
5.2  
g
MECHANICAL DRAWING  
units: mm [inches]  
tolerance: ±0.25 [±0.010]  
pin section tolerance: ±0.10 mm [±0.004]  
(Side View)  
9
8
16  
1
10  
7
1.02[0.040]  
0.50[0.020]  
23.86[0.939]  
3.04[0.120]  
15.24[0.600]  
2.54[0.100]  
2.54[0.100]  
1.00[0.039]  
9
8
16  
10  
7
(Top View)  
PIN CONNECTIONS  
1
PIN  
FUNCTION  
1
7
GND  
NC  
8
NC  
9
+Vo  
0 V  
10  
16  
18.10[0.713]  
+Vin  
0.25[0.010]  
1.40 0.20  
[0.055 0.008]  
cui.com  
CUI Inc │ SERIES: VWRBT2 │ DESCRIPTION: DC-DC CONVERTER  
date 11/01/2012 │ page 4 of 5  
APPLICATION NOTES  
1. 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 specifi ed minimum load, the output ripple may  
increase sharply while its effi ciency and reliability will reduce greatly. If the actual output power is very small, please add an  
appropriate resistor as extra loading.  
2. Recommended Circuit  
All VWRBT2 converters have been tested according to the following recommended testing circuit before leaving the factory. This  
series should be tested under load, never under no load (Figure 1).  
+Vin  
-Vin  
+Vo  
-Vo  
Figure 1  
Cin  
DC  
DC  
However, the capacitance of the output filter capacitor must be proper. If the capacitance is too big, a startup problem might arise.  
For every channel of output, provided the safe and reliable operation is ensured, the greatest capacitance of its filter capacitor sees  
(Table 1).  
General:  
12 V  
24, 48 V  
100 μF  
10 ~ 47 μF  
Vout  
(Vdc)  
Cout  
(μF)  
Cin  
Cout  
10 μF / 100 mA  
3.3  
5
2,200  
1,000  
680  
Table 1  
9
12  
15  
470  
330  
3. Input Current  
While using unstable power source, please ensure the output voltage and ripple voltage do not excced indexes of the converter. The  
preceding power source must be able to provide for converter sufficient starting current Ip.  
General: Ip ≤1.4*Iin-max  
Ip  
Input Voltage  
Range  
Input Voltage (V)  
4. No parallel connection or plug and play  
5. Solderability  
reflow soldering, 240°C max.  
cui.com  
CUI Inc │ SERIES: VWRBT2 │ DESCRIPTION: DC-DC CONVERTER  
date 11/01/2012 │ page 5 of 5  
REVISION HISTORY  
rev.  
description  
date  
1.0  
initial release  
05/12/2008  
05/09/2012  
06/19/2012  
09/10/2012  
11/01/2012  
1.01  
1.02  
1.03  
1.04  
updated to new template  
updated application notes  
V-Infinity branding removed  
added TR package option  
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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