BQ294502 Series

Overvoltage Protection Device for 2- to 3-Cell Li-Ion Batteries, with 4.35v OVP

Catalog

Overvoltage Protection Device for 2- to 3-Cell Li-Ion Batteries, with 4.35v OVP

Part	Primary Attributes	Utilized IC / Part	Supplied Contents	Function	Embedded	Type	Mounting Type	Number of Cells [Max]	Number of Cells [Min]	Battery Chemistry	Supplier Device Package	Operating Temperature [Min]	Operating Temperature [Max]
Texas Instruments BQ294502EVM-033	Overvoltage Protection	BQ294502	Board(s)	Battery Monitor		Power Management
Texas Instruments BQ294502DRVT				Battery Protection			Surface Mount	3 cells	2 cells	Lithium Ion	6-WSON (2x2)	-40 °C	110 °C

Catalog

Overvoltage Protection Device for 2- to 3-Cell Li-Ion Batteries, with 4.35v OVP

Key Features

• 2-series and 3-series cell overvoltage monitor for secondary protectionFixed programmable delay timerFixed OVP thresholdAvailable range from 3.85 V to 4.6 VFixed OVP delay option: 4 s or 6.5 sHigh-accuracy overvoltage protection: ±10 mVLow power consumption ICC≈ 1 µA (VCELL(ALL)< VPROTECT)Low leakage current per cell input < 100 nASmall package footprint6-pin SON2-series and 3-series cell overvoltage monitor for secondary protectionFixed programmable delay timerFixed OVP thresholdAvailable range from 3.85 V to 4.6 VFixed OVP delay option: 4 s or 6.5 sHigh-accuracy overvoltage protection: ±10 mVLow power consumption ICC≈ 1 µA (VCELL(ALL)< VPROTECT)Low leakage current per cell input < 100 nASmall package footprint6-pin SON

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. 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.