What this battery protection IC covers
The Texas Instruments BQ7790500PWR is a Li-Ion battery protection controller that monitors 3 to 5 series cells. It integrates overcurrent, over/under voltage, short circuit, and overtemperature fault detection into a single 20-TSSOP package. The part is designed for consumer and industrial battery packs where a dedicated protector handles charge/discharge FET control and fault latch-off.
Cell count flexibility and fault coverage
With support for 3 to 5 series cells, this IC covers common Li-Ion pack configurations. The fault protection set — overcurrent, over/under voltage, short circuit, and overtemperature — covers the primary failure modes that a battery management system needs to catch before the pack is damaged.