1-cell Li-Ion gas gauge with I²C
The BQ27505YZGR-J1: It sits on the pack-side PCB, tracking state-of-charge for a 1-series cell.
NRND — plan the BOM migration
Texas Instruments has marked this part Not Recommended for New Designs (NRND). Existing production runs can still be sourced, but a new design-in should target a current-generation Impedance Track gauge with a similar I²C register map.
Sourcing through the NRND phase
We source the BQ27505YZGR-J1 through authorized distribution and qualified independent channels. Because the part is NRND, the supply posture is quoted-to-order. If your BOM already carries this order code, we can support the remaining volume; if it is a new design, ask about the active successor with the same I²C Impedance Track core.