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VX7805-500

型号：

VX7805-500

品牌：

CUI[ CUI INC ]

页数：

8 页

PDF大小：

968 K

下载PDF手册
For more information, please visit the product page.  
date 05/18/2017  
page 1 of 8  
SERIES: VX78-500 │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR  
FEATURES  
• wide input  
• pin-out compatible with linear regulators  
• encapsulated  
• UL & CSA approved  
• high efficiency up to 95%  
• no-load input current as low as 0.2 mA  
• wide operating temp: -40°C to +85°C  
• supports negative output  
• short circuit protection on the output  
input  
output  
voltage  
output  
current  
max  
output  
power  
max  
ripple  
efficiency3  
MODEL  
voltage1  
& noise2  
typ  
range  
max  
typ  
(Vdc)  
(Vdc)  
(Vdc)  
3.3  
(mA)  
(W)  
(mVp-p)  
(%)  
VX7803-500  
VX7805-500  
VX78039-500  
VX78012-500  
24  
4.75~36  
500  
1.65  
75  
86  
24  
12  
6.5~36  
7~31  
5
-5  
500  
-300  
2.5  
1.5  
75  
75  
90  
80  
24  
12~36  
9
500  
4.5  
75  
93  
24  
12  
15~36  
8~24  
12  
-12  
500  
-150  
6
1.8  
75  
75  
94  
84  
24  
12  
19~36  
8~21  
15  
-15  
500  
-150  
7.5  
2.25  
75  
75  
95  
85  
VX7815-500  
Notes:  
1. For input voltages higher than 30 Vdc, a 22 µF / 50 V input capacitor is required.  
2. Tested at nominal input, 10~100% load, 20 MHz bandwidth, with 10 µF electrolytic and 1 µF ceramic capacitor on the output. At loads below 10%, the max ripple and  
noise of the 3.3 & 5 Vdc outputs will be 150 mVp-p, and the other outputs will be 2% Vo.  
3. Measured at min Vin, full load.  
4. All specifications are measured at Ta=25°C, humidity < 75%, nominal input voltage, and rated output load unless otherwise specified.  
PART NUMBER KEY  
VX78 XX - 500  
Base Number  
Output Current  
Output Voltage  
cui.com  
For more information, please visit the product page.  
CUI Inc │ SERIES: VX78-500 │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR  
date 05/18/2017 │ page 2 of 8  
INPUT  
parameter  
conditions/description  
min  
typ  
max  
units  
for positive output applications  
for negative output applications  
4.75  
7
24  
12  
36  
31  
Vdc  
Vdc  
operating input voltage1  
filter  
capacitor filter  
input reverse polartiy protection no  
no-load input current positive outputs  
0.2  
1.5  
mA  
Note:  
1. See Model section on page 1 for specific input voltage ranges.  
OUTPUT  
parameter  
conditions/description  
min  
typ  
max  
units  
for positive output applications  
for negative output applications  
680  
330  
μF  
μF  
maximum capacitive load2  
at full load, input voltage range  
3.3 Vdc output model  
all other models  
voltage accuracy  
±2  
±2  
±4  
±3  
%
%
line regulation  
at full load, input voltage range  
at nominal input, 10~100% load  
at nominal input voltage, full load  
at nominal input voltage, 25% load step change  
at nominal input voltage, 25% load step change  
at full load  
±0.2  
±0.4  
±0.4  
±0.6  
850  
%
%
load regulation  
switching frequency  
transient recovery time  
transient response deviation  
temperature coefficient  
550  
kHz  
ms  
0.2  
50  
1
250  
mV  
%/°C  
±0.03  
Note:  
2. The maximum capacitive load was tested at nominal input voltage, full load.  
PROTECTIONS  
parameter  
conditions/description  
min  
min  
typ  
typ  
max  
max  
units  
units  
short circuit protection  
continuous, auto recovery  
SAFETY AND COMPLIANCE  
parameter  
safety approvals  
EMI/EMC  
conditions/description  
UL 60950-1  
EN 55032, EN 55024  
conducted emissions  
radiated emissions  
ESD  
CISPR22/EN55022, class B (external circuit required, see Figure 6-b)  
CISPR22/EN55022, class B (external circuit required, see Figure 6-b)  
IEC/EN61000-4-2, contact ± 4kV, class B  
radiated immunity  
EFT/burst  
IEC/EN61000-4-3, 10V/m, class A  
IEC/EN61000-4-4, ± 1kV, class B (external circuit required, see Figure 6-a)  
surge  
IEC/EN61000-4-5, line-line ± 1kV, class B (external circuit required, see Figure 6-a)  
IEC/EN61000-4-6, 3 Vr.m.s, class A  
conducted immunity  
MTBF  
as per MIL-HDBK-217F, 25°C  
2011/65/EU  
2,000,000  
hours  
RoHS  
cui.com  
For more information, please visit the product page.  
CUI Inc │ SERIES: VX78-500 │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR  
date 05/18/2017 │ page 3 of 8  
ENVIRONMENTAL  
parameter  
conditions/description  
min  
-40  
-55  
5
typ  
typ  
max  
85  
units  
°C  
operating temperature  
storage temperature  
storage humidity  
see derating curve  
125  
95  
°C  
non-condensing  
%
SOLDERABILITY  
parameter  
conditions/description  
min  
max  
units  
wave soldering  
see wave soldering profile  
260  
°C  
Peak Temp. 260°C Max.  
Wave Soldering Time  
250  
4 Sec. Max.  
200  
150  
100  
10 Sec. Max.  
50  
0
Time (sec.)  
MECHANICAL  
parameter  
dimensions  
conditions/description  
min  
typ  
max  
units  
11.60 x 7.55 x 10.16 [0.457 x 0.297 x 0.400 inch]  
mm  
case material  
weight  
black flame-retardant heat-proof plastic (UL94V-0)  
1.8  
g
MECHANICAL DRAWING  
units: mm [inch]  
tolerance: ±0.25[±0.010]  
pin diameter tolerance: ±0.10[±0.004]  
PIN CONNECTIONS  
PIN  
1
+OUTPUT  
+VIN  
-OUTPUT  
+VIN  
2
GND  
-VOUT  
GND  
3
+VOUT  
cui.com  
For more information, please visit the product page.  
CUI Inc │ SERIES: VX78-500 │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR  
date 05/18/2017 │ page 4 of 8  
DERATING CURVE  
Temperature Derating Curve  
(Natural Convention)  
120  
100  
80  
60  
40  
20  
0
71  
-40  
0
40  
85  
120  
Ambient Temperature (°C)  
EFFICIENCY CURVES  
VX7803-500 Efficiency Curve  
Positive Output, Efficiency vs. Input Voltage  
VX7803-500 Efficiency Curve  
Positive Output, Efficiency vs. Load Current  
(at full load)  
(at Vin nominal)  
88  
86  
84  
84  
82  
80  
78  
76  
74  
82  
80  
78  
76  
72  
70  
4.75  
8
12  
16  
20  
24  
28  
32  
36  
10  
20  
30  
40  
50  
60  
70  
80  
90 100  
Input Voltage (Vdc)  
Load Current (%)  
VX78012-500 Efficiency Curve  
Positive Output, Efficiency vs. Input Voltage  
VX78012-500 Efficiency Curve  
Positive Output, Efficiency vs. Load Current  
(at full load)  
(at Vin nominal)  
98  
96  
96  
94  
94  
92  
90  
92  
90  
88  
86  
88  
86  
84  
82  
84  
82  
80  
10  
20  
30  
40  
50  
60  
70  
80  
90  
100  
15  
18  
21  
24  
27  
30  
33  
36  
Load Current (%)  
Input Voltage (Vdc)  
cui.com  
For more information, please visit the product page.  
CUI Inc │ SERIES: VX78-500 │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR  
date 05/18/2017 │ page 5 of 8  
(
)
EFFICIENCY CURVES CONTINUED  
VX78012-500 Efficiency Curve  
Negative Output, Efficiency vs. Input Voltage  
(at full load)  
VX78012-500 Efficiency Curve  
Negative Output , Efficiency vs. Load Current  
(at Vin nominal)  
88  
86  
84  
82  
88  
86  
84  
82  
80  
78  
76  
74  
72  
70  
80  
78  
76  
74  
8
12  
16  
20  
24  
10  
20  
30  
40  
50  
60  
70  
80  
90 100  
Input Voltage (Vdc)  
Load Current (%)  
VX7815-500 Efficiency Curve  
Positive Output, Efficiency vs. Input Voltage  
VX7815-500 Efficiency Curve  
Positive Output, Efficiency vs. Load Current  
(at full load)  
(at Vin nominal)  
98  
96  
94  
92  
96  
94  
92  
90  
90  
88  
86  
84  
88  
86  
84  
82  
10  
20  
30  
40  
50  
60  
70  
80  
90  
100  
19  
20  
22  
24  
26  
28  
30  
32  
34  
36  
Input Voltage (Vdc)  
Load Current (%)  
VX7815-500 Efficiency Curve  
Negative Output, Efficiency vs. Input Voltage  
VX7815-500 Efficiency Curve  
Negative Output, Efficiency vs. Load Current  
(at full load)  
(at Vin nominal)  
90  
88  
86  
90  
88  
86  
84  
82  
80  
84  
82  
78  
76  
74  
80  
78  
8
12  
15  
18  
21  
10  
20  
30  
40  
50  
60  
70  
80  
90 100  
Input Voltage (Vdc)  
Load Current (%)  
cui.com  
For more information, please visit the product page.  
CUI Inc │ SERIES: VX78-500 │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR  
date 05/18/2017 │ page 6 of 8  
TYPICAL APPLICATION CIRCUIT  
Figure 1  
Figure 2  
Negative Output Application Circuit  
Positive Output Application Circuit  
1
3
2
1
+Vin  
GND  
DC/DC  
2
+Vout  
GND  
DC/DC  
+Vin  
GND  
-Vout  
GND  
C1  
C1  
3
C2  
C2  
Figure 3  
Table 1  
Positive and Negative Output Paralleling Application Circuit  
External Capacitor Table  
C1, C3  
C2, C4  
+Vin  
+Vout  
Model Number  
3
1
DC/DC  
2
(ceramic capacitor) (ceramic capacitor)  
VX7803-500  
VX7805-500  
VX78039-500  
VX78012-500  
VX7815-500  
10 μF/50 V  
10 μF/50 V  
10 μF/50 V  
10 μF/50 V  
10 μF/50 V  
22 μF/10 V  
22 μF/10 V  
22 μF/16 V  
22 μF/25 V  
22 μF/25 V  
C4  
C3  
GND  
GND  
-Vout  
LDM  
2
1
DC/DC  
3
C1  
C2  
Figure 4  
Figure 5  
Positive Output Ripple Reduction Circuit  
Negative Output Ripple Reduction Circuit  
L
L
+Vin  
GND  
+Vin  
GND  
Vout  
Vout  
3
2
DC/DC  
DC/DC  
1
1
2
3
C1  
C1  
C2  
C2  
22  
μ
F
22 F  
μ
EMC RECOMMENDED CIRCUIT  
Figure 6  
Table 2  
Recommended external circuit components  
FUSE  
choose according to actual input current  
LDM1  
LDM2  
FUSE  
MOV  
DC/DC  
MOV  
LDM1  
C0  
S20K30  
82 µH  
V in  
+Vo  
Vin  
GN D  
+
LOAD  
C5  
C1  
C2  
680 µF/50 V  
see Table 1  
4.7 µF/50 V  
12 µH  
C0  
GN D  
C1, C2  
C5  
D
E
LDM2  
Note:  
1. C1 & C2 (C3 & C4) are required and should be connected as close to the module pins as possible.  
2. To reduce the output ripple further, it is recommended to connect an “LC” filter at the output terminal with a recommended value of 10~47 µH for the L component. (See  
Figures 4 & 5).  
3. When using application circuit in Figure 3, a 10 µH LDM component is recommended to reduce the interference.  
cui.com  
For more information, please visit the product page.  
CUI Inc │ SERIES: VX78-500 │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR  
date 05/18/2017 │ page 7 of 8  
PACKAGING  
units: mm  
Tube Size: 9.6 x 16.9 x 530 mm  
QTY: 43 pcs  
cui.com  
For more information, please visit the product page.  
CUI Inc │ SERIES: VX78-500 │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR  
date 05/18/2017 │ page 8 of 8  
REVISION HISTORY  
rev.  
description  
date  
1.0  
initial release  
05/18/2017  
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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