LPC MicrocontrollersのトピックRe: LCP4337 In-rush current https://community.nxp.com/t5/LPC-Microcontrollers/LCP4337-In-rush-current/m-p/566403#M17290 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by rocketdawg on Mon Feb 29 09:00:37 MST 2016</STRONG><BR /><SPAN>In rush depends quite a bit upon the size and quantity of regulating and decoupling capacitors on your board.</SPAN><BR /><SPAN>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.</SPAN><BR /><SPAN>And they should be shutoff during power up and then enabled once the firmware starts running.</SPAN></BODY></HTML> Wed, 15 Jun 2016 18:49:41 GMT lpcware 2016-06-15T18:49:41Z LCP4337 In-rush current https://community.nxp.com/t5/LPC-Microcontrollers/LCP4337-In-rush-current/m-p/566402#M17289 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by mtyndall on Thu Feb 25 12:22:39 MST 2016</STRONG><BR /><SPAN>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. </SPAN><BR /><BR /><SPAN>Is this typical with this processor? Is there datasheet available that covers this?&nbsp;&nbsp;&nbsp; </SPAN></BODY></HTML> Wed, 15 Jun 2016 18:49:40 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LCP4337-In-rush-current/m-p/566402#M17289 lpcware 2016-06-15T18:49:40Z Re: LCP4337 In-rush current https://community.nxp.com/t5/LPC-Microcontrollers/LCP4337-In-rush-current/m-p/566403#M17290 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by rocketdawg on Mon Feb 29 09:00:37 MST 2016</STRONG><BR /><SPAN>In rush depends quite a bit upon the size and quantity of regulating and decoupling capacitors on your board.</SPAN><BR /><SPAN>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.</SPAN><BR /><SPAN>And they should be shutoff during power up and then enabled once the firmware starts running.</SPAN></BODY></HTML> Wed, 15 Jun 2016 18:49:41 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LCP4337-In-rush-current/m-p/566403#M17290 lpcware 2016-06-15T18:49:41Z