Part Number: PMP20345 Other Parts Discussed in Thread: PMP20612 Hi,
One of my customer wants to work on a new Dimmable Exit Light Design. They are driving a string of LED at constant current.
The requirement as follow:
Input: AC 230V
Output: 48V 180mA…
Part Number: LM5141-Q1 Other Parts Discussed in Thread: PMP20345 , , LM5141 , UCC28700 Hi Team,
I want to realize PMP20345( http://www.ti.com/lit/df/tidrul7/tidrul7.pdf ) system using LM5141-Q1. This is because the LM5141 is better Iq and high frequency operation…
Yue
You can use one of our AC/DC controllers like UCC28700 to control a buck converter with those operating conditions. http://www.ti.com/tool/PMP20345 and http://www.ti.com/tool/PMP10937 are two examples of UCC28700 configured as such.
Best Regards,
Eri…
Hey Aurora,
We do not recommend using the LM5023 and its opto-based feedback is not optimal in a buck configuration so we do not recommend using it as such.
In buck mode we would recommend using the UCC28700 controller like in this reference design…
Mahendra,
Thanks for the interest here.
Yes this part can do >24Vout. It can be a challenge thermally though so they will have to be very diligent about the power loss calculations. We limit Webench to 24Vout because that covers most applications for…
