Part Number: TPS62660 Other Parts Discussed in Thread: TPS62665 Hi team
I have some questions about datasheet of TPS62660.
Q1. What is means VNOM in p5(Electrical characteristics)?
Q2. What are the values of R1 and R2 in the Functional Block…
Part Number: TPS62665 Other Parts Discussed in Thread: TPS62660 , Hello, From the datasheet, it is mentioned that the converter is optimized to operate with 0.3uH - 1.3uH inductor and 4.7uF - 10uF output capacitors. Would like to know if there is a max…
Hi Yimin,
It looks like you can use GPIO1 from the TPS65218 to drive the EN signal on an external device (see figure 4 of the PMIC user guide). The GPIO1 follows the LDO1 power sequencing so you can use an external device to supplement the LDO1 supply…
Hi Emma,
The GND loop for the scope probe is still too high. Please follow figure 3 in the below attachment.
0042.Understanding the Absolute Maximum Ratings of the SW node.pdf
Emma Wang said: Beside, My customer wants to know the reason for SW restrict…
Hi Patrick,
The voltage spikes in SW pin can be influence by bonding wire and lead frame of the IC, the trace stray inductance leading to the test point and the test probe technique. Hence, it's possible that the actual voltage on the die itself is…
Hi Endo,
There is no issue with the voltage on SW pin. The absolute max values were not violated because it refers to DC voltage. For the case of the waveform you provided, the +4.34V and -0.78V were short duration only and it happens during the transition…
Hello,
The UCC3806 is a dual output controller though it can be used in a flyback where only one of the outputs are used to drive the switch it might be better to choose a single output controller. Look at page 46 of the attached under General Purpose…
Siyu,
I think the toggle flip-flop in the block diagram on page one of the spec should have let you know that the max you will get with this device is 50% duty.
Go to page 43 and 44 of the attached and select a more suitable part.
Peter,
i am enclosing the Power Management Guide for 2011. The section you will be interested in starts on page 43 and actual devices listed on page 46, With the minimum information you have given me I would expect that you will want something like…
