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一、产品特性：
1、规范：完全符合IEEE802.3af/at标准，class 0分级
2、安全：具有输入过压/欠压、输出短路、过流、芯片过温保护功能
3、尺寸：14X35.6mm，专为嵌结构设计
4、兼容性：支持中间跨接法和末端跨接法
5、1500V高压隔离（输入对输出）；
6、宽温工作：-25°到75°稳定工作
三、接口定义：
|
Pin #
|
Name
|
Description
|
|
1 |
VA1
|
RX Input (1). This input pin is used in conjunction with VA2 and connects to the centre tap of the transformer connected to pins 1 & 2 of the RJ45 connector (RX) - it is not polarity sensitive. |
|
2 |
VA2
|
TX Input (2). This input pin is used in conjunction with VA1 and connects to the centre tap of the transformer connected to pins 3 & 6 of the RJ45 connector (TX) - it is not polarity sensitive. |
|
3 |
VB1
|
Direct Input (1). This input pin is used in conjunction with VB2 and connects to pin 4 & 5 of the RJ45 connector - it is not polarity sensitive. |
|
4 |
VB2
|
Direct Input (2). This input pin is used in conjunction with VB1 and connects to pin 7 & 8 of the RJ45 connector - it is not polarity sensitive. |
|
5 |
GND
|
DC Return. This pin is the return path for the +VDC output.
|
|
6 |
VOUT |
DC Output. This pin provides the regulated output from the DC/DC converter. |
四、尺寸结构
五、典型应用
ELECTRICAL SPECIFICATIONS
|
No |
Item |
Specification |
|
1 |
输入电压 |
37~57V |
|
2 |
输出电压 |
12V |
|
3 |
最大输出电流 |
1.1A |
|
4 |
纹波 |
200mVp-p |
|
5 |
效能 |
85% |
|
6 |
工作频率 |
180 KHz |
|
7 |
输入对输出隔离 |
1.5 KV |
|
8 |
拓扑接口 |
反激 |
|
9 |
工作温度 |
-25 ~ +75 ℃ |
