ZHCUAZ0A March 2023 – September 2023 UCC14130-Q1 , UCC14131-Q1
在施加 VIN 并切換 EN 引腳的情況下進行浪涌電流測量。這可確保輸入電容器預偏置到 VIN,對測得的浪涌電流的影響可以忽略不計。浪涌電流的測量方法是將電流探頭連接到輸入電源電壓與 EVM(J4 端子塊)之間的正連接電纜。
![UCC14131-Q1 UCC14131EVM-070 浪涌電流:VIN = 12V,IVDD = 130mA,I[+5V] = 10mA GUID-A89C3D9F-E165-41F6-8027-AC8BE41E47AA-low.png](/ods/images/ZHCUAZ0A/GUID-A89C3D9F-E165-41F6-8027-AC8BE41E47AA-low.png)
| 頂部:VDD-VEE,5V/div, | 底部:IIN,1A/div, |
| mid-1:[+5V]-VEE,2V/div, | 時間 = 1ms/div, |
| mid-2:EN,5V/div, |
![UCC14131-Q1 UCC14131EVM-070 浪涌電流:VIN = 12V,IVDD = 130mA,I[+5V] = 10mA GUID-099C49C9-81CA-4748-9DE8-4AC55C9CDE79-low.png](/ods/images/ZHCUAZ0A/GUID-099C49C9-81CA-4748-9DE8-4AC55C9CDE79-low.png)
| 頂部:VDD-VEE,5V/div, | 底部:IIN,1A/div, |
| mid-1:[+5V]-VEE,2V/div, | 時間 = 1ms/div, |
| mid-2:EN,5V/div, | time_zoom = 100μs/div |
![UCC14131-Q1 UCC14131EVM-070 浪涌電流:VIN = 12V,IVDD = 0mA,I[+5V] = 0mA GUID-B74DA1D3-DB5E-466A-B1F5-0C580A15A8E4-low.png](/ods/images/ZHCUAZ0A/GUID-B74DA1D3-DB5E-466A-B1F5-0C580A15A8E4-low.png)
| 頂部:VDD-VEE,5V/div, | 底部:IIN,1A/div, |
| mid-1:[+5V]-VEE,2V/div, | 時間 = 1ms/div |
| mid-2:EN,5V/div, |
![UCC14131-Q1 UCC14131EVM-070 浪涌電流:VIN = 12V,IVDD = 0mA,I[+5V] = 0mA GUID-CD778E1F-DC69-4177-830F-0D5C34EA63E2-low.png](/ods/images/ZHCUAZ0A/GUID-CD778E1F-DC69-4177-830F-0D5C34EA63E2-low.png)
| 頂部:VDD-VEE,5V/div, | 底部:IIN,1A/div, |
| mid-1:[+5V]-VEE,2V/div, | 時間 = 1ms/div, |
| mid-2:EN,5V/div, | time_zoom = 100μs/div |