BQ756506-Q1 Series
Automotive 6-S precision battery monitor, balancer and integrated protector with ASIL-D compliance
Manufacturer: Texas Instruments
Link to Manufacturer Page: https://www.ti.com/
Catalog
Automotive 6-S precision battery monitor, balancer and integrated protector with ASIL-D compliance
| Part | Number of Cells | Package / Case | Function | Fault Protection | Supplier Device Package | Grade | Interface | Operating Temperature [Max] | Operating Temperature [Min] | Qualification | Mounting Type |
|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments BQ756506PAPRQ1 | 6 | 64-PowerTQFP | Battery Monitor | Over Temperature | 64-HTQFP (10x10) | Automotive | UART | 125 °C | -40 °C | AEC-Q100 | Surface Mount |
Key Features
• Qualified for automotive applicationsAEC-Q100 Qualified with the following results:Device temperature grade 1: –40°C to +125°C ambient operating temperature rangeDevice HBM ESD classification level 2Device CDM ESD classification level C4BFunctional Safety-CompliantDeveloped for functional safety applicationsDocumentation to aid ISO 26262 system designSystematic capability up to ASIL DHardware capability up to ASIL D±1.5-mV ADC accuracyPin-package and software compatible device family:Stackable monitor 16S (BQ79616-Q1, BQ79656-Q1), 14S (BQ79614-Q1, BQ79654-Q1), and 12S (BQ79612-Q1, BQ79652-Q1)Standalone monitor 48-V system (BQ75614-Q1)Supports current-sense measurementSupports fuse and relay open and close diagnosticsBuilt-in redundancy path for voltage and temperature and current diagnosticsHighly accurate cell voltage measurements within 128 µs for all cell channelsIntegrated post-ADC configurable digital low-pass filtersBuilt-in host-controlled hardware reset to emulate POR-like device resetSupports internal cell balancingBalancing current at 240 mABuilt-in balancing thermal management with automatic pause and resume control5-V LDO output to power external digital isolatorUART host interfaceBuilt-in SPI controllerQualified for automotive applicationsAEC-Q100 Qualified with the following results:Device temperature grade 1: –40°C to +125°C ambient operating temperature rangeDevice HBM ESD classification level 2Device CDM ESD classification level C4BFunctional Safety-CompliantDeveloped for functional safety applicationsDocumentation to aid ISO 26262 system designSystematic capability up to ASIL DHardware capability up to ASIL D±1.5-mV ADC accuracyPin-package and software compatible device family:Stackable monitor 16S (BQ79616-Q1, BQ79656-Q1), 14S (BQ79614-Q1, BQ79654-Q1), and 12S (BQ79612-Q1, BQ79652-Q1)Standalone monitor 48-V system (BQ75614-Q1)Supports current-sense measurementSupports fuse and relay open and close diagnosticsBuilt-in redundancy path for voltage and temperature and current diagnosticsHighly accurate cell voltage measurements within 128 µs for all cell channelsIntegrated post-ADC configurable digital low-pass filtersBuilt-in host-controlled hardware reset to emulate POR-like device resetSupports internal cell balancingBalancing current at 240 mABuilt-in balancing thermal management with automatic pause and resume control5-V LDO output to power external digital isolatorUART host interfaceBuilt-in SPI controller
Description
AI
The BQ756506-Q1 device provides high-accuracy cell voltage measurements up to 6S battery modules in less than 200 µs while this device also supports shunt-resistor current sense measurement. The integrated front-end filters enable the system to implement with simple, low voltage rated, differential RC filters on the cell input channels. The integrated, post-ADC, low-pass filters enable filtered, DC-like, voltage measurements. This device also supports integrated current sensing capabilities with an option to synchronize with cell voltage measurements for better state of charge (SOC) calculation. The device supports autonomous internal cell balancing with temperature monitoring to auto-pause and resume balancing to avoid an overtemperature condition.
This device also includes eight GPIOs or auxiliary inputs that can be used for external thermistor measurements.
Host communication to the BQ756506-Q1 can be connected via the device’s dedicated UART interface.
The BQ756506-Q1 device provides high-accuracy cell voltage measurements up to 6S battery modules in less than 200 µs while this device also supports shunt-resistor current sense measurement. The integrated front-end filters enable the system to implement with simple, low voltage rated, differential RC filters on the cell input channels. The integrated, post-ADC, low-pass filters enable filtered, DC-like, voltage measurements. This device also supports integrated current sensing capabilities with an option to synchronize with cell voltage measurements for better state of charge (SOC) calculation. The device supports autonomous internal cell balancing with temperature monitoring to auto-pause and resume balancing to avoid an overtemperature condition.
This device also includes eight GPIOs or auxiliary inputs that can be used for external thermistor measurements.
Host communication to the BQ756506-Q1 can be connected via the device’s dedicated UART interface.