BQ294512

BQ294502, BQ294504, BQ294506, BQ294512, BQ294522 BQ294524, BQ294532, BQ294533, BQ294534, BQ294582, BQ294592 SLUSAJ3K – SEPTEMBER 2011 – REVISED AUGUST 2022 BQ2945xy Overvoltage Protection For 2-Series and 3-Series Cell Li-Ion Batteries 1 Features 2-series and 3-series cell overvoltage monitor for secondary protection Fixed programmable delay timer Fixed OVP threshold – Available range from 3.85 V to 4.6 V Fixed OVP delay option: 4 s or 6.5 s High-accuracy overvoltage protection: ±10 mV Low power consumption ICC ≈ 1 µA (VCELL(ALL) < VPROTECT) Low leakage current per cell input < 100 nA Small package footprint – 6-pin SON 2 Applications Second-level protection in Li-ion battery packs in: – Tablets – Slates – Power tools – Notebook computers – Portable equipment and instrumentation 3 Description The BQ2945xy family of products is a secondary-level voltage monitor and protector for Li-ion battery pack systems. Each cell is monitored independently for an overvoltage condition. Based on the configuration, an output is triggered after a fixed delay if any of the two or three cells has an overvoltage condition. This output is triggered into a high state after an overvoltage condition satisfies the specified delay timer. Device Information PART NUMBER(1) PACKAGE BODY SIZE (NOM) BQ2945xy SON (6) 2.00 mm × 2.00 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Pack + VCELL3 VCELL2 VCELL 1 RVD RIN V3 RIN CIN V...