Hello Mr. Wang,
Voltage across the input and output capacitors of power supplies are as follows,
C2=5.16V; C10=5.16V
C1=12.36V; C8=6.8V
C9=15.24V; C15=3.77V
I have connected two switches for boost configuration (replaces one diode with a switch…
Hi Vishal,
After speaking with a colleague, I had a few more comments. First, I'd recommend reaching out to the MOSFET vendor to get their inputs and send a failed device to them for failure analysis. And second, TI also makes power MOSFETs although…
Hello,
Thank you for your reply. One small query, was the issue faced by the author of SLVA729 while trying to turn the DFET OFF or ON or in both situations? The language in the document is a little confusing.
Quoting the related paragraph - "When…
Hi Ian,
MOSFETs vary, so how many FETs it can drive will also vary. The application note https://www.ti.com/lit/pdf/slva729 shows results with the BQ76200 driving up to 12 CSD19536KCS FETs, the figures show that switching will slow. What is acceptable…
Part Number: UCC27211 Other Parts Discussed in Thread: CSD19536KCS , Tool/software: Code Composer Studio Input more than 60V voltage, the chip （UCC27211）is easy to be damaged. why ? I can not find out the cause of damage，please help me. NOTE: The MOFSET…
Hi Abhishek,
Thanks for the inquiry. TI has a number of 100V MOSFETs available with a few package options including 5x6 SON, D2PAK and TO220. Are you looking for a surface mount package or a thru-hole package that can be attached to a heatsink? For…
Part Number: TIDA-00364 Other Parts Discussed in Thread: CSD19536KCS , CSD19535KCS , Hi,
I am currently working on the 48V,5kW PMSM motor inverter drive.
I am trying to implement the same system with through hole mosfets. Now we are considering the…
Hi Adam,
If AVDD is zero and the gate driver won't pass UVLO test at powerup but DVDD is 3.3V, VREF/VREG is as expected, etc, and I have no way to troubleshoot AVDD, then I suspect the DRV chip has been damaged.
I noted that a low side transistor…
Hi Adrian,
Thanks for the inquiry. The lowest rds(on) FET with BVDSS = 100V is the CSD19536KTT in D2PAK. Typical rds(on) is 2mOhm (2.4mOhm max) at VGS = 10V. This same FET is available in TO220, CSD19536KCS, with slightly higher rds(on): 2.3mOhm typ…
Hi Mohan,
Thanks for the inquiry. I think this is a valid approach assuming all of the FETs are attached to the same heatsink, at approximately the same temperature and sharing current equally. However, I believe there is a mistake in your power dissipation…
