Hi KaiKai,
If HV DC-Link is floating, it is not a complete circuit with a charge-path. The SW's floating voltage should be related to the voltage of VDD and the IC voltage of Cboot, as shown by your red arrow.
If it is otherwise floating, HV DC link…
Part Number: UCC21530 Tool/software: Hello,
I am trying to design the schematic of UCC21530. While examining application notes and reference designs, I noticed some differences.
In the picture I atteched, there are 2 ports named "Coma" and "Comb".…
Part Number: UCC21530 Other Parts Discussed in Thread: TIDA-00199 , UCC21551 Tool/software: I have designed a 3 phase inverter using the UCC21530 drivers. The drivers are powered by an isolated bi-polar power supply similar to TIDA-00199. Power supply…
Part Number: UCC21530-Q1 Other Parts Discussed in Thread: UCC21530 , UCC21551 , ALLIGATOR Tool/software: Hi
I am using UCC21530 for driving the Totem pole PFC MOSFET when the input is around 50V there are some noises seen in the output of gate driver.
…
Part Number: UCC21530-Q1 Other Parts Discussed in Thread: UCC21530 Tool/software: Hello, I am using the UCC21530 gate driver to drive Half bridge and during lightneing pulse test, the gate driver is damaged (only one / 3, always the same which is damaged…
Part Number: UCC21530 Other Parts Discussed in Thread: TIDM-02009 , Tool/software:
Section 10 on the datasheet makes a recommendation to add local bypass caps to the VDD and VSS pins, as close to the device as possible, and it's also shown on the Eval…
Part Number: UCC21530 Other Parts Discussed in Thread: UCC21551-Q1 , UCC21330 , UCC21551 Tool/software: Hello, We are looking for a robust and reliable isolated and/or non-isolated half bridge gate driver for a 120V 6kW PMSM motor driver ; 1- We are wondering…
Part Number: UCC21530-Q1 Tool/software: Hi Team!
Could you please hep to explain how to understand this:
How does the driver chip determine that the switch is at the Miller level (DVDT occurrence stage) when it cannot detect the gate voltage?
Is this…
Part Number: UCC21530 Other Parts Discussed in Thread: TIDA-00366 , I was referring to TIDA-00366 document. I assume that the DC voltage generated would be in the order of 400V if the input supply is 230V,50Hz. Whether the DC voltage is sufficient for the…
