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
7、无电容版本，纹波低，寿命超长，性能好，超薄型总高度仅12.25mm
二、系统框图
三、接口定义：
|
Pin #
|
Name
|
Description
|
|
1
|
VA1
|
RX Input (1).
This input pin is used in conjunction with VA2 and connects tothe
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 tothe 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 connectsto 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 connectsto 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
|
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 ℃
|
