What this balancer does for a 2-cell Li-ion pack
The BQ25887RGER is a dedicated battery balancer IC from Texas Instruments for 2-series-cell Lithium Ion packs. It uses an I²C interface for host-controlled balancing and monitoring, and integrates fault protection against over-current, over-temperature, and over-voltage conditions.
The BQ25887RGER is supplied in a 24-VQFN Exposed Pad package (4x4 mm body).
No direct stock-holding claim; availability confirmed per RFQ.
Fault protection set for pack safety
The BQ25887RGER includes over-current, over-temperature, and over-voltage fault protection. Over-voltage protection prevents cell voltage exceeding safe limits during charging; over-current and over-temperature cover load faults and thermal runaway scenarios.