Bug #111254
【Figure】【EVT】【PI】VDD_3V3动态响应测试值超规格要求
| Status: | CLOSED | Start date: | 2022-08-15 | |
|---|---|---|---|---|
| Priority: | High | Due date: | 2022-08-26 | |
| Assignee: | 项目部_SD3 赵云 | % Done: | 100% | |
| Category: | EE | |||
| Target version: | - | |||
| Need_Info: | -- | Found Version: | V01 | |
| Resolution: | -- | Degrated: | -- | |
| Severity: | Major | Verified Version: | ||
| Reproducibility: | Every time | Fixed Version: | ||
| Test Type: | IOT | Root cause: |
Description
VDD_3V3在动态拉载中测试值为416.53mV，测试标准是＜330mV。
测试步骤：最大电流值3.5A；设置动态拉载电流范围10-100%，拉载电流斜率0.1A/us，上升时间0.5ms，下降时间0.5ms
History
#1 Updated by SZ-硬件二组_SD3 王苗 almost 3 years ago
- File 3.3V修改220pf.jpg added
- Assignee changed from SZ-硬件二组_SD3 王苗 to 项目部_SD3 赵云
修改电容C137为220pf，拉载330mv到3V 复测在267mV,复测波形附件。在规格范围内。请复测验证，同时测试下其它电源相关参数。
#2 Updated by 项目部_SD3 赵云 almost 3 years ago
- Status changed from New to RESOLVED
按研发修改复测电压幅值，纹波，噪声和动态响应（0.3A-3A拉载）测试都pass。
#3 Updated by 项目部_SD3 赵云 almost 3 years ago
- Due date set to 2022-08-26
- Status changed from RESOLVED to VERIFIED
- % Done changed from 0 to 100
#5 Updated by CD TPM-申艳艳 almost 3 years ago
- Category set to EE