Part Number: BQ25890 In my initial post I stated " In almost all read access of the BQ25890, bit 2 of register 0x14 reads as a 0. However, on one occasion, I have read back a 1 from that bit. What causes that bit to be set to 1 (since it is a read…
Part Number: BQ25890 Hi team,
Could I set BQ25890 to VBUS power supply only on Vsys? what register should I change?
1.REG03[4]CHG_CONFIG set to 0(charge disable), does this status Battery will supply to VSYS?
2.REG09[5]BATFET_DIS set to 1(Force BATFET…
Part Number: BQ25890 Other Parts Discussed in Thread: BQ25892 Hi Sir,
We've discussed STAT pin function at BQ25890 earlier. Customer still has problem in stoping STAT pin function currently at their board and EVM.
They want to stop STAT pin blinking…
Hi Steve,
The csv with raw SCL and SDA waveforms is a very large amount of data. It would be much more helpful if customer could capture an image of only the single I2C read transaction to REG0C for me to review.
I agree the best next step is to perform…
Part Number: BQ25890 Hi
The customer design with BQ25890, when inserting an OTG device, there was 2.9A peak current, which will pull the 3.6V battery to 2.6V, causing the system to restart.
Is there any way or register to limit the peak current at this…
Dear Garrett:
Do you mean, the IDPM_LIM value would not go back after ICO changes it? Or the ramp-up speed is too fast to response for ICO?
The nominal input is 12V and the DMP threshold is set to 6V. There is a Schottky diode and some MOSFETs for Power…
Part Number: BQ25890 Hi team,
The VBAT voltage of Datasheet Figure 8-1 is 3.8V but, customer want to know the efficiency at VBAT = 2.8V, 3.3V or so.
Could you provide it or, measure it if the evaluation data is not exist?
Best Regards,
Part Number: BQ25890 Other Parts Discussed in Thread: BQ25896 Hi,
We have two battery-powered products with BQ25890 and we've got a few returns due to "dead" devices.
We suspect it happens when shipping mode is enabled, but we're unable to…