Thanks for the explanation.
Max duty cycle is close to 100%, as the Fsw folds back to maintain regulation. We have a true 100% duty cycle controller (wuth a charge pump for the gate drive) that should appear online in the next couple of days...the…
Part Number: TPS40170-Q1 Other Parts Discussed in Thread: TPS40170 , LM5145 Tool/software: We are implementing an OVP/UVP circuit on the output of this part and pulling the Hside FET gate low during a fault condition. Is there any harm with loading HDRV…
Part Number: LM5146-Q1 Other Parts Discussed in Thread: LM5146 , LM5145 Tool/software: Hi,
I have query about recommend layout for DC DC converter. In pcb layout, what should be there below Switching node i.e. inner layers.? I have gone through TI recommend…
Part Number: LM5146-Q1 Other Parts Discussed in Thread: LM5145 Tool/software: Hello,
I've been making attempts to export a buck converter design (schematic, bom, pcb layout) for a 48 (40-56) V to 24 V configuration. However I'm unable to export the…
Hi Alpesh,
The LM5148 80V current-mode controller is one option here. You can also consider the LM5145 75V voltage-mode controller, particularly as this has a 7.5V gate drive that provides faster switching and enables the use of standard-logic FETs…
Part Number: LM5149-Q1 Other Parts Discussed in Thread: LM5148 , LM5145 , LM5149 SIMETRIX model for LM5145 can be used on SIMETRIX. However, model LM5148 & LM5149 not able to run on SIMETRIX as encrypted. Can you help?
Best regards,
Part Number: LM5146-Q1 Other Parts Discussed in Thread: LM5145 Tool/software: Hello TI support,
I'm using the LM5146-Q1 synchronous buck controller in my power supply design, and I am observing unexpected ripple noise throughout the circuit . The ripple…
Part Number: LM5146 Other Parts Discussed in Thread: LM5145 Hello, I used the WBench tool and received the below output in Figure 1. My question is - in the parts list there are qty 2 of M1, are these two parts connected in parallel and the gate of each…
Part Number: LM5148 Other Parts Discussed in Thread: LM5145 , , LM5149 Tool/software: Hi,
I have been digging around for some details about exactly how TIs family of synchronous buck controllers actually deal with the problem of start up when the output…
Hi Tim,
I was looking at the eval board design for the LM5145, optimization of the power stage design( link ). As far as ive understood it shows different layouts and the hot loop taken by the switching current in different layout and placement styles…
