The multiple ss restarts after the shutdown suggest an OC is tripping.
You mention an added resistor and 2N7002 in first post.
I see the 2N7002 on the schematic. Where is the resistor that is added.
An open drain 2N7002 on the EN/SS should not change…
Part Number: TPS56121 Regarding TPS5621 simulation, i am using Pspice-TI. I got the library on the Pspice and build the circuit.
I want to AC simulation to get the bode plot. before that i did transient one first to make sure the circuit is working.
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Part Number: TPS56121 Other Parts Discussed in Thread: TPS543C20 , Hello There,
I have a quick question on the internal regulator operation depending on EN pin. Per I know, the internal regulator keeps running once VDD pin is applied with a proper level…
Try and run this file TPS56121 (3).TSC without modifications, it works for me.
The (3) file is the file from original post with the modifications discussed in my 1/11 post.
Does it simulate and yield a result
If not, Let us troubleshoot your simulation…
Part Number: TPS56121 Other Parts Discussed in Thread: TPS56221 Hi Team,
The TPS56121 is rated up to 15A as stated at page 1 of the datasheet. However, it states in section 8.2.2.12 it can handle 20A. Our customer would like to know how does this affect…
Part Number: TPS56121 Hi team,
Customer is using TPS56121 in their project, and their schematic as follow. Now they meet one question during low temperature start up.
They find in their circuit, the start up time take more time, and they test the EN/SS…
Part Number: TPS56121
power_supply.docx
please validate attached document for fpga power supply,that sequence is ok or not and suggest us modifications
we are planning to design kintex 7 fpga based board .please suggest power supplies for that one.
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1. Using a 0.46uH when 1.5uH is suggested: The ripple current is larger and the crossover frequency of control loop is higher and will affect the compensation components needed to close the loop.
Typically, inductors are sized to have 20% to 40% ripple…