LCP4337 In-rush current

取消
显示结果 
显示  仅  | 搜索替代 
您的意思是: 

LCP4337 In-rush current

604 次查看
lpcware
NXP Employee
NXP Employee
Content originally posted in LPCWare by mtyndall on Thu Feb 25 12:22:39 MST 2016
I'm using a LPC4337 microprocessor and during power-up I am seeing an in-rush current around 2 amps for about 300us before settling.

Is this typical with this processor? Is there datasheet available that covers this?   
标签 (1)
0 项奖励
回复
1 回复

589 次查看
lpcware
NXP Employee
NXP Employee
Content originally posted in LPCWare by rocketdawg on Mon Feb 29 09:00:37 MST 2016
In rush depends quite a bit upon the size and quantity of regulating and decoupling capacitors on your board.
it also depends upon external peripheral components, which should have a shutoff or enable since they will have to be shutdown to reach suspend current levels.
And they should be shutoff during power up and then enabled once the firmware starts running.
0 项奖励
回复