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…
Part Number: LM5050-1 Other Parts Discussed in Thread: LM5005 Hi Team,
as attached the schematic and test waveform, may we know this schemaric is correct?
our LM5005 circuit , after the part in the green frame removed, measure the waveform of Vin…
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…
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…
Other Parts Discussed in Thread: LM5005 , LM5575 , LM5576 , LM5575-Q1 , LM5576-Q1 Tool/software: WEBENCH® Design Tools I have a need to create -40V from +20V. My current requirement is very low, maybe 20-30mA.
Last time I tried designing a Voltage Inverter…
Hello Robert,
no problem, thank you very much for the effort! I took your advice from the last post and switchted to the LM5005, which fits my requirements also very good. You also were right concerning probing.
Again, I really appreciate your efforts…
