Part Number: UCC28720 Other Parts Discussed in Thread: UCC28730 , UCC28C53 Tool/software: I'm trying to find a, preferably PSR, flyback converter that can handle
input from 15Vdc to 150Vdc
2 individually isolated outputs
and has a very low no-load…
Part Number: UCC28720 Hello,
We are looking at using UCC28720 in a buck regulator.
Does the Vs pin (pin 2) have to be connected to the output voltage in order to function properly?
What would happen if we left the Vs pin unconnected?
Would the part still…
Part Number: UCC28720 Hi,
At the top of page 19 of the datasheet, there is a formula that calculates Ls. Is the value of Ls critical? Can it be less than what is calculated? Because the value found is very high (8mH while transformers good for a similar…
Part Number: UCC28720 Other Parts Discussed in Thread: DRV110 Hi,
Can we use UCC28720 for constant current control application (example: solenoid control).
Is it possible to disable the voltage control loop and use only the current control loop.
Part Number: UCC28720 Other Parts Discussed in Thread: UCC28710
I made a Flyback using UCC28710. It works well. I replaced the controller by UCC28720.
According to two datasheets, there is no many difference between two controllers such as maximum switching…
Part Number: UCC28720 Hi,
We are using UCC28720 as per attached image below.
In few of the power supplies, we found Parts R91, R92 ( Current Sense resistors), U1 ( Switcher) , T1 ( Transistor connected to the switcher drive) and R2 ( Transistor Base drive…
Part Number: UCC28720EVM-212 Other Parts Discussed in Thread: UCC28720 Hi ,
I know that the UCC28720 can achieve a 5W charger design without Y capacitor. under easily passing EMI test (Application Report Number ZHCA597), I want to know, if output changed…
Hi IgorR
Thank you for reaching out.
The IC is most likely restarting because it has encountered a fault.
Please refer the following debug guides which might be helpful with the debug process.
https://e2e.ti.com/support/power-management-group/power-management…
Part Number: UCC28720 Hello,
I copied the reference design inside UCC28720 datasheet, including same part numbers for discrete. The design gives the expected output with no load connected, and when a 10 ohm load is added the voltage drops to zero with…
Part Number: UCC28720 Other Parts Discussed in Thread: UCC28722 , UCC28880 , UCC28910 Can we design 5V, 0.5A isolated power supply module with this IC? If i try with TI Webench it shows that junction temperature lower than ambient temperature. Please advise…
