Hello, all
Now we have one inquiries regarding charge current detection on BQ27520-G4 from our customer.
Please refer to the item below, and feedback us with your comment.
1) On previous model which used bq26500, we used the fuctionality of CHGS on Flags to identify charge current.
However, we could not find out similar register on BQ27520-G4.
We would like to implement charge stop function into the MCU, in case that the charge current is increased despite that the supervisor detects that the charge has been already done.
Please let us clarify how we could identify charge current on this.
2) When referring "FUNCTIONAL DESCRIPTION" on page 20 of bq27510-G1 (SLUS927), the following description was found.
When RemainingCapacity( ) falls below the second capacity threshold, SOCF Set Threshold, the [SOCF] (State of Charge Final) flag is set, serving as a final discharge warning.
Meanwhile, when referring "FUNCTIONAL DESCRIPTION" on page 11 of bq27520-G4 (SLUSB20A), the following description was found.
As Voltage( ) falls below the SysDown Set Volt Threshold, the Flags( ) [SYSDOWN] bit is set and SOC_INT will toggle once to provide a final warning to shut down the system.
Please let us clarify why the algorithm itself was changed between these devices.
We thank you in advance for your information.
Best regards,