Hi,

What is the maximum power dissipation that this device can handle?

Thank you  in advance

Regards,
Maynard

hello expert,

I have already set the registers and i want to combine the battery and monitor board (made by myself with BQ76952) so as I can test some protections.

After powering…

 When I send command to the chip, the chip will enter DEEPSLEEP mode, but LDO is not turned on.

How to open "REG18, REG1, REG2 on" in DEEPSLEEP mode？

Hello Sir:

We have one issue when import gg file to BQ76952.

The device shows error message as below figure.

Please help to provide recommendations for us and let us know how to fix…

A 10k resistor is shown inline with the nWake switch on both EVAL board schematics but I can find no mention of it in the datasheet. What is the function of this and would it still be suggested if nWAKE were driven from a 3.3V MCU…

Hello.
I'm going to design a BMS based on the BQ76952.
However, there is a problem with the availability of the version that communicates over I2C.
The system would communicate with Arduino on the i2c bus.
However, at the moment the…

Hello,

My design is in the final stage for the release and a brief about the design is available below.

Cell configuration: 4S to 16S (Configurable)

Cell Chemistry: LFP and NMC

Operation…

In the latest BQ76952 technical reference, the following are written about alarm enable:

"The 0x66 Alarm Enable() command can be read to see the present mask applied to the 0x64 Alarm Raw
Status() bits." on P60

"Mask for…

Hi 

May I know what's the difference between EV2400 Firmware updater 0.28 and 0.32? What did 0.32 version fix or improve? Thanks.  

On page 65:

TI recommends using 100 Ω resistors in series with the SRP and SRN pins, and a 100 nF with optional 100
pF differential filter capacitance between the pins for filtering. The routing of these components, together…

Hello,

Is it possible to configure both REG1 & REG2 to the same voltage (5V)?

Regards,

Ravi

Hi  Matt，

How are  you? I meet bq76942 issue again. With plus discharge at 20A, the discharge mosfets get burn down. 

With debugging, I find the discharge current will infect…

Hi

When driving bq76952, I found that the response of IIC is very unstable. After sending the device address 0x10, sometimes there is a response, sometimes there is no response, most of the time there is no response, and the communication…

Hi Team,

I have BQ76952 IC in our board, I can successfully communicate with BQ IC  (ESP32 - BQ76952) and read and write register value, I cross verify with BQ studio which communicate via EV2400…

Hello Matt and others

We have a requirement for the FUSE output to drive a small circuit rather than the example 5K series resistor to a capacitor and NFET gate that heats and opens the chemical fuse.

I haven't found a maximum drive…

Please find the schmatic for review. 

It is for  POWER MOSFET on LOW SIDE.

1) CHG, DSG, PCHG, PDSG, REG2, DF ETOFF, CT ETOFF, HDQ  are NOT used, so I have left them unconnected.

2) CHARGE and DISCHARGE are LOGIC power mosfet with very…

Hi,

I'm developing a BMS based on BQ76952 and everything went well until I connected it to an inverter.

Using an electronic load I could test all the functions and everything worked as…

Hi Team,

My customer is trying to evaluate bq76952 EVM. They mentioned if set CFETOFF Pin Configuration to 0x22, they cannot see CFETOFF active high.

However, if settings OPT[0] to 1 (Register is changed to 0x26 from 0x22), active…

Hello,

I have been playing around with the BQ76952EVM board and i have connected my own MCU to the board to communicate with it. Using MCU i was able to send the Shutdown() command twice…

Hi Team,

In TRM, we can find the following description in OPT[2]. I am interested in the note - This should only be selected if OPT[3] = 0 and OPT[1] = 0.

Could you explain the reason? Thanks for your help in advance. 

i am designing a new project, 8 series battery, i use one BQ76930 and one TI MCU, i want to use the MCU sample 8 series cells temperature and the positive and negative terminal temperature…

Please give example of logic POWER MOSFET can be used on low side. Need for reference only. These will be driven directly by logic output 5V of DDSG & DCHG. I checked application report…

Dear Sirs,

My customer had problem doing cell balancing in relax mode!

It seems the balancing did not work.

The attached files are some settings and log data.

Please help to review if there is anything wrong with the setting!

Thanks…

Hello sir,

One of my customer is using BQ76952 and they use 7 resistance cells in series to simulate battery core. The total voltage is 21V and each battery is under 3V ideally. While. the last resistance cell's voltage will be dropped…

Hello Sir:

We know that ALERT pin will be high level when fault condition.

But after clear fault condition how to let ALERT PIN to low level?

We tried to send command 0x62 to 00, but it's no work, ALERT PIN is still high.

Please…