Hello Abueno,
I ran the UCC21750 PSpice file as well and found a similar issue. In the waveform below, red is DESAT voltage, green is nFLT voltage, and blue is gate voltage. I can see that nFLT pulls low when DESAT is activated, but the gate seems to…
Part Number: ISO5452 Other Parts Discussed in Thread: ISO5451
Hi,
The attachment is the IGBT I used. I didn’t understand very well when designing the ISO5452 pin 2 Desat function, so please help:
1. D4 design considerations, how many volts do I…
Part Number: ISO5452 Dear team,
When customer did short circuit protection test of ISO5452, the IC should be soft shut down under this mode, but customer tested no soft shut down as below picture shows.
Could you kindly help confirm?
Thanks.
Thanks…
Part Number: ISO5452-Q1 Other Parts Discussed in Thread: ISO5451 , ISO5452 Hi all,
What is the purpose of OUTH and OUTL pin? Why they are two separate pins? Is it to drive two separate switches?Please suggest
Part Number: ISO5452 Dear team,
See from datasheet of ISO5452, RDY could self-recovery, but FLT only recovery by reset RST. In customer's application, FLT usually means serious fault, they will not want to reset DESAT, they will cut off the end equipment…
Part Number: ISO5452-Q1 Other Parts Discussed in Thread: ISO5452 Hello TI
I have a question about ISO5452 want to verify with you.
In the datasheet, we can see I(OUTH) max is 2.7A, but in our design may be a little over this value, we want to know is there…
Part Number: ISO5452 Gentlemen,
I'm working on a three level Neutral point clamp (NPC) inverter for a motor drive and using the ISO5452 driver chip. The inverter is comprised of SiC mosfets/diodes.
I seem to be getting an erroneous DSAT trip when…
Part Number: ISO5452 As I know that DESAT threshold voltage can be modified by adding multiple DESAT diodes in series. What else good way to modify the DESAT voltage other than this? Thanks.
Regards
Brian W
