Family Overvoltage Protection for 2 to 4-Series Cell Li-Ion Batts w Ext Delay Capacitor - BQ7716

BQ7716 (ACTIVE)

Family Overvoltage Protection for 2 to 4-Series Cell Li-Ion Batts w Ext Delay Capacitor

 

Description

The bq7716xy device family provides an overvoltage monitor and protector for Li-Ion battery pack systems. Each cell is monitored independently for an overvoltage condition. For quicker production-line testing, the bq7716xy device provides a Customer Test Mode with greatly reduced delay time.

In the bq7716xy device, an external delay timer is initiated upon detection of an overvoltage condition on any cell. Upon expiration of the delay timer, the output is triggered into its active state (either high or low, depending on the configuration). The external delay timer feature also includes the ability to detect an open or shorted delay capacitor on the CD pin, which will similarly trigger the output driver in an overvoltage condition.

Features

  • 2-, 3-, and 4-Series Cell Overvoltage Protection
  • External Capacitor-Programmed Delay Timer
  • Fixed OVP Threshold
  • 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
    • 8-pin WSON (3.00 mm × 4.00 mm)

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Parametrics Compare all products in Battery Monitor, Protection & Authentication Solutions

 
Function
Number of Series Cells (Min)
Number of Series Cells (Max)
Communication Interface
Features
Typical Operating Current (Typ) (uA)
Rating
Vin (Max) (V)
Pin/Package
BQ7716
Protection   
2   
4   
No Communication   
Over-voltage (OV)   
1   
Catalog   
20   
8WSON