What is chip's reset current?

[asfliy]

Can someone explain what is chip's reset current, and how to measure it, which reasons will cause it too big?

 

[funster]

you problem is not clear, that's hard to answer.

Can someone explain what is chip's reset current, and how to measure it, which reasons will cause it too big?

 

[funzero]

Maybe , there are many type of reset .
for example , power on reset, external reset, burn out reset, watch dog timer reset. and what is more in some design with pll , you must deal with the instabilty of pll's clock wave . so it can make a reset circuit big and complex.

 

[spauls]

could you please clear , what u want.
Chip reset current ??

 

[sunjimmy]

Hi,

Before power-on reset released, the chip is idle without clock toggling. Once the power-on reset released, the internal clock starts to toggle, the chip will sink a sudden operating current, and you will see a sudden voltage drop on the chip power.

You may use a current probe to measure the operating current transient. Or you can cascade a small resistor about 1 ~ 3 ohm on the power pin, measure the voltage difference on both terminals of the cascaded resistor on scope, then you can measure the transient current you want.

Hope it helps

 

[roykyn]

which chip?????