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Description

The BQ294502, 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 one of the two or three cells has an overvoltage condition. This output will be triggered into a high state after an overvoltage condition has satisfied the specified delay timer.

Features

• 2-Series and 3-Series Cell Monitor for Secondary Protection
• Fixed Programmable Delay Timer
• Fixed OVP Threshold:
– bq294502 = 4.35 V with 4-s Delay Timer
– bq294504 = 4.35 V with 6.5-s Delay Timer
– bq294512 = 4.40 V with 4-s Delay Timer
– bq294515 = 4.425 V with 4-s Delay Timer
– bq294522 = 4.45 V with 4-s Delay Timer
– bq294524 = 4.45 V with 6.5-s Delay Timer
– bq294532 = 4.50 V with 4-s Delay Timer
– bq294562 = 4.25 V with 4-s Delay Timer
– bq294572 = 4.00 V with 4-s Delay Timer
– bq294582 = 4.225 V with 4-s Delay Timer
– bq294584 = 4.225 V with 6.5-s Delay Timer
– bq294592 = 4.30 V with 4-s Delay Timer
• High-Accuracy Overvoltage Protection: ± 10 mV