Texas Instruments BQ79614PAPRQ1
- Part Number:
- BQ79614PAPRQ1
- Manufacturer:
- Texas Instruments
- Ventron No:
- 6369504-BQ79614PAPRQ1
- Description:
- Automotive 14-S precision battery monitor, balancer and integrated protector with ASIL-D compliance
- Datasheet:
- bq79614-q1
- Number of series cells (min)6
- Vin (max) (V)80
- FeaturesCell balancing
- Device typeCell monitor and balancer
- Number of series cells (max)14
- Operating temperature range (°C)-40 to 125
- RatingAutomotive
- Battery overvoltage protection (min) (V)2.7
- Battery overvoltage protection (max) (V)4.5
- TI functional safety categoryFunctional Safety-Compliant
- Communication interfaceDaisy Chain
- Operating current (typ) (μA)9000
BQ79612-Q1, BQ79614-Q1 and BQ79616-Q1 provide high-accuracy cell voltage measurements in less than 200 µs for 12S, 14S and 16S battery modules in high-voltage battery management systems in HEV/EV. The family of monitors offers different channel options in the same package type, providing pin-to-pin compatibility and supporting high reuse of the established software and hardware across any platform. The integrated front-end filters enable the system to implement with simple, low voltage rating, differential RC filters on the cell input channels. The integrated, post-ADC, low-pass filters enable filtered, DC-like, voltage measurements for better state of charge (SOC) calculation. This device supports autonomous internal cell balancing with temperature monitoring to auto-pause and resume balancing to avoid an overtemperature condition.
The inclusion of the isolated, bidirectional, daisy chain ports supports both capacitor- and transformer-based isolation, allowing the use of the most effective components for centralized or distribution architectures commonly found in the xEV powertrain system. This device also includes eight GPIOs or auxiliary inputs that can be used for external thermistor measurements.
Host communication to the BQ7961x-Q1 family of devices can be connected via the devices dedicated UART interface or through a communication bridge device, BQ79600. Additionally, an isolated, differential daisy-chain communication interface allows the host to communicate with the entire battery stack over a single interface. in the event of a communication line break, the daisy-chain communication interface is configurable to a ring architecture that allows the host to talk to devices at either end of the stack.
Automotive 14-S precision battery monitor, balancer and integrated protector with ASIL-D compliance 64-HTQFP -40 to 125
AUTOMOTIVE 14-S PRECISION BATTER
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ImagePart NumberManufacturerNumber of series cells (min)Vin (max) (V)FeaturesDevice typeNumber of series cells (max)Operating temperature range (°C)RatingBattery overvoltage protection (min) (V)Battery overvoltage protection (max) (V)TI functional safety categoryCommunication interfaceOperating current (typ) (μA)View Compare
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BQ79614PAPRQ1680Cell balancingCell monitor and balancer14-40 to 125Automotive2.74.5Functional Safety-CompliantDaisy Chain9000-
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680Cell balancingCell monitor and balancer16-40 to 125Automotive2.74.5Functional Safety-CompliantChain9000
-
333Cell balancingCell monitor and balancer6-40 to 105Automotive25Functional Safety-CompliantDifferential Daisy Chain4200
-
--Separate MCU requirementCommunication device--40 to 125Automotive--Functional Safety-CompliantDaisy Chain2500
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