When the same control signal is used to enable two TPS4019x, it is not suggested to tie the ENABLE pins of the two TPS4019x together. The reason is as follows. Due to the process variation, the threshold on ENABLE pin which is 1.9V typical (3xV BE ) is…
Vidhya,
What is the problem with the single PowerGood output from the TPS65400? The TPS65400 is a good part for this design. Alternately, TI has a large selection of devices that can be implemented individually. You should follow-up on the power forum…
Nanjunda,
Please see the attached presentation put together some time back by our power team. It shows an optimized solution for powering multiple K2H devices on slide 10.
6305.TI Analog Solutions for Keystone2 Family.pdf
Regards,
Senthil
Angad Shah,
Please see the attached presentation put together some time back by our power team. It shows an optimized solution for powering multiple K2H devices on slide 10.
Tom
TI Analog Solutions for Keystone2 Family.pdf
Ramgopal,
Your assessment of the bulk decoupling required is correct. You must calculate the required amount and validate it. The Hardware Design Guide (SPRABI2) discusses this calculation.
This bulk capacitance will affect the control loop on the…
SI,
Please see the attached presentation. It was originally prepared for the LM10010 which was later superceded by the LM10011 which has higher precision. Please also see the many E2E posts discussing the LM10011 and TPS56121 with C667x and C665x. …
