The UCC2155x devices offer a newer, more robust design of the internal ESD cell which better prevents against unintended ESD cell triggering. When noise in the VDD supply triggers the ESD cell, there is a surge in RMS current. Repeated triggers can eventually…
Part Number: UCC21551-Q1 Other Parts Discussed in Thread: UCC21530 , UCC21551 Hi Team
we are using the UCC21551 & UCC21530 both the drivers in our project. Kindly provide the allowable power dissipation of the above mentioned both IC at ambient of 105…
Part Number: UCC21551-Q1 Other Parts Discussed in Thread: UCC21551 Hi,
Regarding the following issues encountered during the open loop verification of UCC21551 driver chip, please help to resolve them.
Problem 1: There may be spikes in the OUTA/OUTB pin…
Part Number: UCC21551-Q1 Other Parts Discussed in Thread: UCC21331-Q1 , UCC21530-Q1 Hi e2e:
Could you please provide the information about dv/dt of the VDD of UCC21551-Q1 and UCC21331-Q1?
Part Number: UCC21551-Q1 Other Parts Discussed in Thread: UCC21551
this is a boost converter Using ucc21551. IC Vdd is 23V. how to applied negative voltage to drive source pin using a 5.1V Zener diode? Which pin should I connect to High side Power source…
Part Number: UCC21551-Q1 Other Parts Discussed in Thread: UCC21750 Hello,
We are designing EV converter systems, I am trying to find dual driver for half bridge (like UCC21551-Q1)
But, this do not have short circuit protection function like DESAT.
Is…
Part Number: UCC21551-Q1 Hi team,
May I ask the channel to channel voltage of UCC21551-Q1, I can't find this parameters in the datasheet.
Thank you!
Regards,
Ivy
Hi GP,
Can you please use the UCC21550 instead? We resolved a lot of issues based on UCC21520 feedback in the updated design.
The output stage of the UCC21520 is too fast and it can interrupt Igate fast enough to cause Vdd >30V abs max, due to the Vgs…
Hello Karthik,
Yes, regardless of the UCC27714 or the UCC21551-Q1, there is still an issue regarding charging the bootstrap capacitor as the switch node needs to switch close to ground for the bootstrap capacitor to charge. Using a dual low side driver…
Part Number: UCC21521 Other Parts Discussed in Thread: UCC21551 Tool/software: Hello ,
I have downloaded a PSPICE transient model of UCC21521 from the TI website and ran a transient simulation. However, the simulation fails to converge.
In transient…