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 ℃ |