Other Parts Discussed in Thread: BQ77PL157A4225, BQ77905, BQ76930, BQ76200
Hello,
I am looking for a Stand-Alone six cell (24V) Li-ion battery protector IC. Following are some main requirements:
1) Over- under- voltage protection per cell and entire battery.
2) Preferably Stand-alone (with a enable/disable pin or two for control of the IC). I2C communication for configuration only is acceptable.
3) The IC should be able to control or drive (external) Charge/Discharge MOSFETs that are placed on the positive line (high side) of the battery (preferably).
Some secondary comments:
4) I am able to use simple stackable solutions, if needed.
5) Ideally, in a 20-pin TSSOP package.
6) Cell balancing is not needed, but OK if present.
7) If there is a solution that, in addition to providing over-/under- voltage protection, also charges (switch-mode) the 24V, 6-cell battery from a 12V source, that would be acceptable too.
I found some parts:
bq77pl157a4225 - Drives a low side charge FET (no discharge FET?). Is there a similar part that drives a high side charge FET and also a discharge FET?
BQ77PL900- It appears that it can be operated in stand-alone mode. Is there any visibility on its life-cycle? I would like to make sure that TI will continue to keep this part active for at least the next 10 years.
Any pointers or solutions would be greatly appreciated.
Kind regards,
Nitish Agrawal
