Other Parts Discussed in Thread: LM5005 I have a customer asking:
Is there a problem applying the 5V on Vout w/o Vin? During the programming of the board we may need to apply external power to the board rather than using high input voltage.
The internal…
Part Number: TPS2378 Other Parts Discussed in Thread: LM5005 , Dear team
The customer's design is using non-isolated, directly use LM5005 to convert 12V,
1. Does it require opto-coupler?
2. Can T2P directly connected to the CPU?
Many thanks
Denny
Other Parts Discussed in Thread: LM5005 Hi Guys,
I'm using the LM5005 but i found the output voltage(5V) is not clean, there is a ripple 600mVpp. So my question now is how to design or what is the proper ways to place my components? If anyone got design…
Other Parts Discussed in Thread: LM5005 Hello,
I have a customer who would like to operate the LM5005 with a clock frequency higher than 500kHz; however, the datasheet is not 100% clear on this. According to the first page and the RT pin description,…
Hi Ashley,
Can you send the values in your PSPICE circuit to see if they compare to the WEBENCH model. Also, try completing the LM5116 Excel quickstart calculator here: https://www.ti.com/product/LM5116#design-development##design-tools-simulation
…
Hi Prithv,
The design seems feasible. Two 4.7uF/100V ceramic caps should be sufficient on the input.
PS: another option here is the LM5005 75V/2.5A converter (with integrated FET). This provides an easier layout.
Regards,
Tim
I blew up an LM5005 and LM5088 both on boards that I made(not the eval boards). I sent a board utilizing the LM5146 a few days ago so we'll see if it was just overshoot on the input voltage. Thanks for in the info Tim.
Will
Hi Prithvi,
The sat curve seems tight for a 2A load, especially as (1) the saturation point decreases at hot and (2) some margin is required for current limit. You can choose the inductance based on a 30-40% ripple current.
In terms of Cout, the downstream…