Part Number: BQ20Z45-R1 Other Parts Discussed in Thread: BQ20Z655-R1 , BQ24765 Hello,
We have a battery pack using BQ20Z45-R1 gas gauge. We read the battery parameters every 2 seconds via SMBUS. Our software typically completes the read operation of…
Part Number: BQ25710 Other Parts Discussed in Thread: BQ24707A , BQ24765 , , BQ24725A , BQ24770 Hi team,
My customer is searching for battery charger used for a smart battery(gauge & temp sensor embedded, SMBus communication).
They are considering…
Hi Brendan,
No problem, I'm happy to help.
1) The input current is the current from the adapter (Iin in Figure 4 below). The charge current is the current that flows into the battery (Ibat in Figure 4).
2) Unlike some of our other chargers, the…
Hi Elavarasan,
It sounds like the watchdog timer is timing out and terminating charging. This is described in Section 8.3.20 in the datasheet:
Unfortunately, the BQ24765's watchdog timer cannot be disabled. The host MCU or a battery fuel gauge will…
Another Engineer tells me that the BQ24765 seems to work with a smart battery and PEC. However, the recommended implementation includes a fet to switch on the battery charge voltage, and this is controlled by the host processor (not the BQ24765 in response…
Shishuo,
Thank you for the response. The BQ24780S or the BQ24765 seem to be good fits. This will be running of a 24V bus with +/-10% tolerance (VMAX = 26.4V).
The recommended VIN range stops at 24V but the ABS MAX is 30V. Is this a typical use…
Part Number: LMZ21701 Other Parts Discussed in Thread: BQ24765 We have observed some failures on the LMZ21701 converters we are using in our product. So far, on 100 boards assembled, we have seen 3 regulators fail into service. On all of these failed…
Hello Rohit, thank you for posting to our forum.
It appears you have 3 series cells, at 3.6V plateau, equals 11.1V.
Full LiIon will have ~4.2V per cell, 12.6V full.
What input voltage do you have available?
TI has BUCK chargers, so for your design…
Hi Anthony, We've tried the BQ24160. Sadly it's suffering the same. When the battery is connected and a good voltage >3.9V I2C comms seem to be stable. Below 3.9V or when no battery is connected we get the SDA line being held by the BQ chip. We've tried…
