Voltage difference between VDD_ARM_CAP and VDD_SOC_IN

取消
显示结果 
显示  仅  | 搜索替代 
您的意思是: 
已解决

Voltage difference between VDD_ARM_CAP and VDD_SOC_IN

跳至解决方案
1,113 次查看
kladu
Contributor II

Hi,

we are using i.MX6ULL with fixed power supplies (not PMIC). Datasheet (Table 10, Page 24) claims that VDD_SOC_IN MUST be 125 mV higher than the LDO Outputs.

Difference between VDD_SOC_IN and VDD_ARM/SOC_CAP at upper voltage limit (1.5V vs 1.26V) is larger than 125mV.

Should this difference be understood as exactly 125mV or at least 125mV? If it is exactly, what is the tolerance and how to deal with upper voltage level mismatch?

Thanks,
kladu

Screenshot 2022-01-06 at Thu, 6 Jan, 12.47.23 PM.png

 

标签 (1)
0 项奖励
1 解答
1,106 次查看
igorpadykov
NXP Employee
NXP Employee

Hi Borut 

 

>Should this difference be understood as exactly 125mV or at least 125mV?

 

yes it should be at least 125mV, sorry for confusion.

 

Best regards
igor

在原帖中查看解决方案

2 回复数
1,102 次查看
kladu
Contributor II

That's what I thought, thanks Igor.

0 项奖励
1,107 次查看
igorpadykov
NXP Employee
NXP Employee

Hi Borut 

 

>Should this difference be understood as exactly 125mV or at least 125mV?

 

yes it should be at least 125mV, sorry for confusion.

 

Best regards
igor