Other Parts Discussed in Thread: TPS92075 , UCC28070 Hi to all, i need to use TPS92075 without linear regulator for VCC because i need to reduce bom components. I would use a second winding in the main inductor, i've read the datasheet of IC and seems…
Hi,
Voltage Vcl=1.2V determine the current level when control logic switch off the switching MOSFET. Taking into account that operated voltage at ISNS =0.5V, this mean that current limit feature turn on when current increase more than 2x. This shouldn…
Hi Kanji.
Concerning your Q2. As I see from datasheet Vcc(typ)=11V, while Vcc(max)=18V, from another side I see that minimum operation range is defined by UVLO block and equal to the 10,5V. Thus if you provide correct power supply it could be used with…
Thanks Tim for the reply.
I understand your statement of the additional current to supply equal to the I_to_drive_gate= Qg*f_drv.
As well thanks for your remark about power dissipation due to frequency and gate charge of the external FET. But I guess…
Hi, Tim,
Thanks for your detailed answer. I'll take it for consideration/
About high frequency solution I guess it will be omitted by TPS92075 architecture and minimum off-time value.
BTW could you suggest where I could find the minimal value for…
Using the Sluv813EVM and as said in datasheet, I varied R10 from the 8.25K and at ~3.3K the 30V leds started flickering. Until this point, there was no reduction in LED current. I was hoping that when the R10 is reduced the On-time would reduce linearly…
1) Per SLVU813 EVM Figure 5, and also I measured the FET source voltage, the peak goes to 1.2v. According to the datasheet this is the Vcl(current limit). In normal operation, would the ISNS voltage be ~0.5V, and only on an overcurrent/inductor short…
Other Parts Discussed in Thread: TPS92075 Hi,
What is difference in using different kind of EMI filter for TPS92075?
I see that for reference design PMP6009 non-symetric pi-filter is used, while for evaluation module ( TPS92075EVM ) t-filter with…
