Part Number: PMP21781 Other Parts Discussed in Thread: LM5155 , LM51551 Tool/software: Hi, I hope you are doing well,
I have a question regarding an application using the LM5155x in a similar configuration to the PMP21781 reference design.
Specifications…
Part Number: PMP21781 Hi expert,
Our customer has a 150V application and they refer to our PMP21781 reference design.
They found the Cx1 in the schematic is not the same with our general use, and the C11 is also DNP.
What is Cx1 here used for and why we…
Part Number: LM5155 Other Parts Discussed in Thread: TIDA-020013 , PMP21781 I have a need for an adjustable boost converter that can output up to 150V at 0.100 mA. The input voltage would be off a 14.4V nominal lithium ion pack. Ideally this rail would…
Hi d_zero,
Thanks for reaching out with your questions and for considering the LM5156 in your design.
For the first condition I suggest taking a look at the reference design below. This should be a good starting point for your application.
https://www…
Hi David,
Thanks for reaching out with your question and for considering TI as part of your design solution.
First, is isolation required for this design? I ask as the maximum output voltage is around 200V. This will dictate the best solution for your…
Hi M Hesselberth,
Another solution is to design a boost converter to operate in discontinuous conduction operation to achieve the required step-up ratio. Take a look at this reference design. Taking this approach would save from having to do a complicate…
Given,
I suggest taking a look at the LM5155. There are two different approaches for the high-step up converters.
1. Operate in DCM
www.ti.com/.../PMP21781
2. Use discrete charge pump
www.ti.com/.../TIDA-020013
Please contact me directly if you have any…
