求：适于LIN应用的12V到5V的电源转换芯片，最好是freescale的！[求助] freescale, 芯片, 电源, LIN, 应用

guoguoer

 

求：适于LIN应用的12V到5V的电源转换芯片，最好是freescale的！

guoguoer

怎么没有人发应啊？freescale电源转换的芯片是什么型号？ 指点一下啊!

tannyhbkj

5V的稳压芯片太多了，没有功耗要求的可以使用7805，有功耗要求的可以使用一些开关电源芯片

tianlan_316

LM5007,效率比较高可达90%左右,外围电路比较简单,一个电感几个电阻.成本也比较低.
不过LM5007的输出电流<=500mA,如果功率要求比较大的话,可以选用其他型号的芯片.[em24]

xiaoheli

for slave node, try MC33689

haihuaxing

http://www.freescale.com.cn/products/analog/Chinese_Information.asp

wwwccc

如果从节点就选用集成了LIN2.0收发功能的SBC芯片MC33689；如果是主节点，一般这个主节点是CAN-LIN网关，所以可以选用集成了CAN收发器的SBC芯片，低速的有：MC33889，MC33389，高速的MC33989
以下是Freescale Support提供的参考：
As a physical interface you can use one of the following



For CAN:

MC33742, High Speed, Dual 5.0V regulator

http://www.freescale.com/files/analog/doc/data_sheet/MC33742.pdf



MC33389, Low Speed, Dual 5.0V LDO regulator

http://www.freescale.com/files/analog/doc/data_sheet/MC33389.pdf



MC33889, Low Speed, 5.0V LDO regulator

http://www.freescale.com/files/analog/doc/data_sheet/MC33889.pdf





For LIN:

MC33689, 5.0V

http://www.freescale.com/files/analog/doc/data_sheet/MC33689.pdf



MC33399, just physical layer

http://www.freescale.com/files/analog/doc/data_sheet/MC33399.pdf



Currently there is not part that has both LIN and CAN so you will have to use two of the options of above.