Because of the Thanksgiving holiday in the U.S., TI E2E™ design support forum responses may be delayed from November 25 through December 2. Thank you for your patience.
Part Number: UCC28250 Other Parts Discussed in Thread: UCC28251 , UCC28C51 Dear support team, We are using the UCC28250 as a PWM controller with a switching frequency (fsw) of 100kHz set by a 147kOhm RT resistor and we would like to decrease this switching…
Part Number: UCC28250 Hı team i did not understand some things in pre biased operation
For example
1-) Is it necessary to apply voltage to the pre bias outputs along with the input voltage to start the controller? Cant the controller work without an pre…
Part Number: UCC28250 Other Parts Discussed in Thread: LM5046 , UCC28951 Dear Team,
Does this chip can be used in resonant mode ? If yes, do you have any technical articles about it ? Since as far as I know, for resonant mode i would need phase shifted…
Part Number: UCC28250 Other Parts Discussed in Thread: UC3842 , UCC28251 Dear Support Team,
We use the UCC28250 as a PWM controller for an isolated full-bridge 44V -> 12V. The controller is configured for primary side control with voltage feedforward…
Part Number: UCC28250 Hi team,
it seems that we met a bug on using our EN_pin to enable and disable the device:
it would work well if we put over 2.25V on EN_pin to enable the device;
but if we put 2.2v on En_pin, it seems that the device would work…
Part Number: UCC28250 Hello,
I am developing an ac/dc converter using UCC28250.
It is used as secondary side control, and the topology applies full bridge.
I am developing 3kW, and even if I load only 0.1A,
the heat rises close to 70 degrees in the UCC28250…
Part Number: LM5036 Other Parts Discussed in Thread: LM5035 , UCC28250 Tool/software: Hi,
I had one query-
these are my design conditions -
Vin: 20-95V
Vout:13V
Iout:30A
Isolated design needed
I was planning to use LM5036(half bridge) as there is a design…
Hello,
You can do this with a phase shifted full bridge and will provide ZVS and the highest efficiency of 90-94% efficiency.
If the customer wants to attempt this design we have an application note and design tool that can help them with the design…
Part Number: UCC28250 Hello
We developing a rectifier that varies the output voltage from 30V to 200V.
It is currently configured with secondary side control.
In this case, I am curious about how to set the VSENSE Pin.
The output is varied by receiving…
Hi,
Your original message shows 24Vin input so push pull is good. Now you show 24V to 96V, then push pull does not seem good at 96V you need 200V MOSFETs which not good.
Half bridge is better option.
LM5035 or UCC28250 can be considered.
