Chen, The way to calculate rise in temperature is to multiply that power you calculated by the physical Rtheta of your device on the board. This value however, probably has to be measured specific to you board.
If you believe your device is running…
Part Number: BQ76920 Other Parts Discussed in Thread: BQ76200 , , TIDA-00792 Hi Sir/Mam,
I am attaching the schematic I built using BQ7692006PWR in 3S configuration along with the high side driver BQ76200 and the gerber file generated from it. Please…
If max input is only 24Vin, you can probably get away with 40V FETs.
We have an entire family of 40V FETs that you can observe here.
http://www.ti.com/lsds/ti/power-management/n-channel-mosfet-transistor-products.page#p267=40;40
Our lowest Rdson…
Part Number: BQ76920
Hello, I am currently working with the BQ76920 chip. I set the UV_TRIP register to 0X00 so the 14 bit value is 01000000000000,I am using it in 3S configuration and the voltage across battery pack now is 7.36V but still BQ76920 isn…
Hi Nicholas,
Thanks for the update and great questions and understanding, and that’s a lot of deadtime! I would like to have a look at all 4 input signals, it seems that the half bridge is not being switched correctly. If everything is switching correctly…
Hi Nicholas,
Sorry for the late reply.
After talking to the designers it seems that there was a problem in generating dead-time on both the edges using MSP430. In this design, there was no other simple way of getting the required dead time. Therefore…
Part Number: BQ76920 Other Parts Discussed in Thread: BQ25703A , , BQ76200 Hi sir/mam, I am using BQ7692006PWR in 3S configuration. I am using the terminology referring to schematic, please refer to the attached schematic. I discharged the battery pack…
Hello,
Thanks for the reply I checked by removing the battery pack and there was no voltage at the REGOUT pin. In this setup VSS is connected to the ground of board and I didn't find any voltage between VSS and GND. I am using REGOUT only for SCL and…
Other Parts Discussed in Thread: DRV8301 , UCC27200 , CSD18502Q5B Hallo there! Recently i am working on a Project and it is about BLDC/DC Motor controll. First i would like to discribe a liittle bit about our Project: We want to build a remote controll…
mppt.pdf Thanks for the response, Kai
I will verify the version of the part I am using. I did not include the circuitry for transient protection however, the devices are used in an MPPT solar charger design that was derived from the TI SM72295 device…
