这套用户手册能够帮助迅速的了解无锡明芯微电子的推挽驱动MX6501和其对应的变压器实现的隔离效果和隔离效率
无锡明芯微的MX6501采用内置36VLDMOS的工艺0.2欧姆的内阻,配合提供的不同变压器, 能够实现12V转12V输出,5V转12V输出和5V转5V以及3.3V转3.3V等不同的隔离输出,该几款组合采用的是无LDO的方案,由于是开路无反馈在输出端加了一个假负载13kohm能够实现10%以内的电压误差变动,客户也可以加LDO,如果客户想实现小的低功耗
可以选用MX6505T的产品,MX6505T的产品有使能控制脚,如果不用可以让该推挽输出停止工作达到节能目的
PNs |
VIN: VOUT |
Transformer |
Turns Ratio |
V-T(Vus) |
隔离 |
MX6501 5V:5V EVM |
5V转5V 最大0.6A输出 |
MXPP6-3K6110 |
1:1.10 |
11 |
3kv |
MX6501 12V:12V EVM |
12V转12V 最大0.6A输出 |
MXPP8-30-1103 |
1:1.03 |
30 |
3kv |
NA |
5V:12V 最大0.3A输出 |
MXPP8-30-1250 |
1:2.50 |
10 |
3kv |
下面是5V转5V的评估电路板线路图 采用的是MX6501T+MXPP6-3K110组合
下面是MX6501T+MXPP8-30-1103组合实现的是最大12V转12V0.5A的输出功率,效率如下图
The following table lists the bill of materials for the MX6501T-5V:5V DEMO.
serial number |
Comment |
Designator |
Footprint |
Quantity |
Manufacturer |
1 |
4.7uF/25V |
C1, C2 |
C-0805 |
2 |
|
2 |
10uF/25V |
C3 |
C-0805 |
1 |
|
3 |
NC |
CY1 |
C-1206 |
1 |
|
4 |
MBR0520 |
D1, D2 |
D-SOD-123 |
2 |
|
5 |
2.54mm 2pin Header |
J1 |
HDR-TH_2P-P2.54-H-M-W10.4 |
1 |
|
6 |
2.54mm3pin Header |
J2 |
HDR-TH_3P-P2.54-H-M-W10.4 |
1 |
|
7 |
6.8uH |
L1 |
R-0805 |
1 |
|
8 |
NC |
R1 |
R-0603 |
1 |
|
9 |
MXPP6-3K6110 |
T1 |
变压器10.05*6.73mm |
1 |
MAXIN MICRO |
10 |
MX6501T |
U1 |
SOT23-6 |
1 |
MAXIN MICRO |
The following table lists the bill of materials for the MX6501T-12V:12V DEMO.
serial number |
Comment |
Designator |
Footprint |
Quantity |
Manufacturer |
1 |
4.7uF/25V |
C1, C2 |
C-0805 |
2 |
|
2 |
2.2uF/50V |
C3 |
C-0805 |
1 |
|
3 |
NC |
CY1 |
C-1206 |
1 |
|
4 |
SS34 |
D1, D2 |
D-SMA |
2 |
|
5 |
NC |
J1, J2 |
HDR-TH_2P-P2.54-H-M-W10.4 |
2 |
|
6 |
6.8uH |
L1 |
R-0805 |
1 |
|
7 |
7.5KΩ |
R1 |
R-0603 |
1 |
|
8 |
8.2KΩ |
R2 |
R-0603 |
1 |
|
9 |
13KΩ |
R3 |
R-0603 |
1 |
|
10 |
MXPP8-30-1103 |
T1 |
变压器-SMD |
1 |
MAXIN MICRO |
11 |
MX6501T |
U1 |
SOT23-6 |
1 |
MAXIN MICRO |
The following table lists the bill of materials for the MX6501T-5V:12V DEMO.
serial number |
Comment |
Designator |
Footprint |
Quantity |
Manufacturer |
1 |
4.7uF/25V |
C1, C2 |
C-0805 |
2 |
|
2 |
2.2uF/50V |
C3 |
C-0805 |
1 |
|
3 |
NC |
CY1 |
C-1206 |
1 |
|
4 |
SS34 |
D1, D2 |
D-SMA |
2 |
|
5 |
NC |
J1, J2 |
HDR-TH_2P-P2.54-H-M-W10.4 |
2 |
|
6 |
6.8uH |
L1 |
R-0805 |
1 |
|
7 |
0Ω |
R1 |
R-0603 |
1 |
|
8 |
NC |
R2 |
R-0603 |
1 |
|
9 |
13KΩ |
R3 |
R-0603 |
1 |
|
10 |
MXPP8-30-1250 |
T1 |
变压器-SMD |
1 |
MAXIN MICRO |
11 |
MX6501T |
U1 |
SOT23-6 |
1 |
MAXIN MICRO |
Efficiency test data/效率数据搞到90%
MX6501T 5V:5V efficiency |
||||||||||||||||||||||
IO(mA) |
0 |
10 |
20 |
30 |
40 |
50 |
60 |
70 |
80 |
90 |
100 |
200 |
300 |
400 |
||||||||
η(%) |
0 |
60.84 |
73.09 |
78.45 |
81.29 |
83.83 |
84.8 |
85.4 |
85.97 |
86.18 |
86.82 |
87.27 |
84.91 |
84.28 |
||||||||
MX6501T 12V:12V efficiency |
||||||||||||||||||||||
IO(mA) |
0 |
10 |
20 |
30 |
40 |
50 |
60 |
70 |
80 |
90 |
100 |
200 |
300 |
400 |
||||||||
η(%) |
0 |
62.86 |
75.41 |
81.2 |
84.35 |
86.88 |
87.94 |
89.29 |
89.41 |
89.71 |
91.27 |
92.06 |
88.67 |
88.02 |
||||||||
MX6501T 5V:12V efficiency |
|||||||||||||||||||
IO(mA) |
0 |
10 |
20 |
30 |
40 |
50 |
60 |
70 |
80 |
90 |
100 |
110 |
120 |
130 |
140 |
150 |
200 |
250 |
300 |
η(%) |
0.00 |
50.22 |
65.44 |
73.43 |
77.80 |
80.56 |
82.30 |
83.71 |
85.68 |
86.47 |
86.86 |
87.10 |
87.12 |
87.23 |
87.24 |
86.38 |
86.20 |
83.85 |
81.33 |
作者: 王萌, 来源:面包板社区
链接: https://mbb.eet-china.com/blog/uid-me-3932082.html
版权声明:本文为博主原创,未经本人允许,禁止转载!
文章评论(0条评论)
登录后参与讨论