Part Number: BQ25890
Hello,
I have to re-open below topic as I confirmed it's IC issue by below step.
- removed power adapter & battery
- use power supply with big enough current capability connect to battery input (PIN: BAT)
- the same issue…
Part Number: BQ25890 Hi team,
My customer want to know the deviation of STAT-pin's 1Hz blinking.
Is it +/-12% like digital clock(min 1320, typ 1500, max 1680 kHz)? Or, please tell me the deviation value if it works another clock domain.
Best…
Part Number: BQ25890
- only battery mode
- both battery and sys voltage is about 4V.
- during issue happen, no observation at battery side, but see sys voltage drops to 1V about 500ms.
- below pic capactured by oscilloscope, blue-battery voltage…
Part Number: BQ25890 Other Parts Discussed in Thread: BQ25895 Hi! I'm trying to manage a system that can either be battery powered or USB powered. On boot, I'm able to determine if USB is plugged in via VBUS_STAT = 0x0B If no USB is plugged in, I set…
Part Number: BQ25890 Hi all,
We use BQ25890 charge management chip, now with 22W adapter, default mode, without I2C The charging input is 12V/800mA, approximately 9W power.
If the input of 12V/1.5A be configured through I2C?
Thanks for your respond…
Part Number: BQ25890 Dear Team,
We have a case of using BQ25890.
With only battery power, It is found that BQ25890 will consume about 1.76mW (@3.7V),
This power consumption is not compatible with the Datasheet (Figure 1 below).
Q1: When the…
Part Number: BQ25890
Hi,
I have used BQ25890 in my device, and 20 devices are used in my team.
Sometimes, occursionly, the BQ25890 is not charging or supply power for VSYS, while the VBUS is good.
Here, I have read all the registers out:
…
Part Number: BQ25890 Other Parts Discussed in Thread: , BQ25895M Hello,
I have a device that uses the BQ25890 charger chip.
The chip is connected to a USB C connector (D+/D- only) on the PCB.
The problem is that the charger is delivering 9V…
Part Number: BQ25890 Hello Team, We are working on a device that uses TI BQ25890 with LG INR 18650 Protected 3500mAh Single Cell Li-ion Rechargeable Battery (Specifications listed below),it is required that the device remains in continuous charging mode…
Part Number: BQ25890 Hi,
To power down the system by command, I can do that by setting REG09 . bit . BATFET_DIS=1 and REG00 . bit . EN_HIZ=1.
To reboot the system by command , is there any way?
In my system, the /QON pin is connected to a button…
