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Product details

Parameters

Function Protection Number of series cells (Min) 2 Number of series cells (Max) 4 Features 2-series protection, 3-series protection, 4-series protection, Over-voltage (OV), External delay capacitor, Single pin output drive Typical operating current (Typ) (uA) 1 Rating Catalog Vin (Max) (V) 20 open-in-new Find other Battery protectors

Package | Pins | Size

WSON (DPJ) 8 12 mm² 4 x 3 open-in-new Find other Battery protectors

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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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.

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Technical documentation

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet bq7716xy Overvoltage Protection for 2-Series to 4-Series Cell Li-Ion Batteries with External Delay Capacitor datasheet (Rev. D) Jul. 09, 2015
Technical articles Get to know your battery pack: Part 1 Sep. 28, 2015

Design & development

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WSON (DPJ) 8 View options

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