The BQ77216 family of products provides a range of voltage and temperature monitoring, including overvoltage (OVP), undervoltage (UVP), open wire (OW), and overtemperature (OT) protection for Li-ion battery pack systems. Each cell is monitored independently for overvoltage, undervoltage, and open-wire conditions. With the addition of an external NTC thermistor, the device can detect overtemperature conditions.
In the BQ77216 device, an internal delay timer is initiated upon detection of an overvoltage, undervoltage, open-wire, or overtemperature condition. Upon expiration of the delay timer, the respective output is triggered into its active state (either high or low, depending on the configuration).
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | BQ77216 Voltage and Temperature Protection for 3-Series to 16-Series Cell Li-Ion Batteries with Internal Delay Timer datasheet (Rev. J) | PDF | HTML | 06 Nov 2023 |
| Functional safety information | BQ77216 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA (Rev. A) | PDF | HTML | 08 Dec 2021 | |
| EVM User's guide | BQ77216EVM User's Guide (Rev. A) | 19 Nov 2020 | ||
| Certificate | BQ77216EVM EU Declaration of Conformity (DoC) | 29 Jul 2020 | ||
| Technical article | Power to the pedal: Achieving longer-lasting 13S, 48-V lithium-ion battery packs f (Rev. A) | PDF | HTML | 07 Mar 2019 |
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