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New high-accuracy battery monitor and balancer from TI improves performance of wired and wireless battery management systems

New high-accuracy battery monitor and balancer from TI improves performance of wired and wireless battery management systems 

Engineers can diagnose battery failures in high-voltage systems in half the time, achieve ASIL D certification and extend driving range in hybrid and electric vehicles

Texas Instruments (TI) (Nasdaq: TXN) today introduced a new automotive battery monitor and balancer that reports high-accuracy voltage measurements in systems up to 800 V. In addition, the BQ79616-Q1 streamlines Automotive Safety Integrity Level (ASIL) D compliance in hybrid electric vehicles (HEVs) and electric vehicles (EVs). For more information, see www.ti.com/BQ79616-Q1-pr.

Filtering system-level noise to accurately measure battery-cell voltage and temperature and reliably reporting this information to the microcontroller (MCU) are key design challenges for automotive manufacturers. The BQ79616-Q1 addresses both of these challenges to help engineers achieve battery safety goals and maximize distance per charge in wired and wireless battery management systems.

The BQ79616-Q1 battery monitor and balancer is the industry’s first to include a patented wake-up-at-fault feature. When paired with the BQ79600-Q1 SPI/UART communication interface, it enables total system shutdown when the vehicle is parked or turned off. This helps design engineers conserve battery power, improve cell balancing and support safety requirements. To learn more about TI’s wake-up-at-fault feature, read the technical article, “Conserve battery power in HEV/EVs with automatic host reverse wake-up.”

Maximize driving range with high-accuracy battery monitors and balancers

The BQ79616-Q1 is the first in a next-generation family of TI battery monitors and balancers to support high-accuracy monitoring for a broad spectrum of battery chemistries, including lithium-iron phosphate (LiFePO4). This enables automotive manufacturers to more precisely measure battery state-of-charge and state-of-health, thereby reducing cost. The BQ79616-Q1’s integrated digital low-pass filter and high-precision analog-to-digital converter optimize signal measurement accuracy, delivering cell-voltage measurements with less than 2 mV of error.

Streamline ASIL D certification with the industry’s fastest diagnostics

TI’s new monitor and balancer meets component-level requirements of ISO 26262, supporting ASIL D compliance for voltage measurement, temperature measurement and communication – dramatically reducing bill of materials (BOM) and software overhead. With the industry’s fastest time in diagnosing battery failures, 100 ms in 400-V systems, the BQ79616-Q1 enables greater system reliability and battery safety.

Improve system reliability with robust communication and advanced thermal management

The BQ79616-Q1 offers robust electromagnetic compatibility (EMC) performance to withstand the harsh, noisy environments of HEVs and EVs without compromising the reliability of daisy-chain communication. In addition, the device’s pin rating enables it to withstand high-voltage transients and hot-plug events, and it incorporates autonomous cell balancing to simplify thermal management. To learn more about improving system reliability with advanced thermal management, read the technical article, “Enhance thermal management in EVs with autonomous cell balancing.”

Scale battery designs to reduce cost and time to market

TI’s new family of monitors and balancers offers multiple channel options in the same package, providing pin-to-pin compatibility and 100% reuse of established software. Further, the BQ79616-Q1 integrates bus-bar measurement, enabling engineers to maximize channel usage across various combinations of battery module sizes. Combining the BQ79616-Q1 with the BQ79600-Q1, engineers can design their battery management system in a closed-loop configuration with only one communication interface to further reduce component count.

Package, availability and pricing

The 16-channel BQ79616-Q1 is available now for purchase in volume on TI.com in a 10-mm-by-10-mm, 64-pin thermally enhanced thin quad flat package (HTQFP), priced at US$6.90 in 1,000-unit quantities. The BQ79616-Q1EVM evaluation module is available on TI.com for US$399.00. The BQ79600-Q1 is available in volume production on TI.com in a 16-pin thin shrink small-outline package (TSSOP). Pricing starts at US$4.00 in 1,000-unit quantities. Multiple payment and shipping options are available on TI.com. New 12-channel and 14-channel battery monitors and balancers are expected to be available in the first quarter of 2021.

2021010802 / 08.01.2021 / Electronic-components / Texas Instruments /

New high-accuracy battery monitor and balancer from TI improves performance of wired and wireless battery management systems 
New high-accuracy battery monitor and balancer from TI improves performance of wired and wireless battery management systems
Engineers can diagnose battery failures in high-voltage systems in half the time, achieve ASIL D certification and extend driving range in hybrid and electric vehicles
.....
TI's EMI-optimized integrated transformer technology miniaturizes isolated power transfer into IC-sized packaging
Engineers can shrink their power solution by as much as 80% and maximize efficiency in high-voltage industrial applications with a new high-density, isolated DC/DC bias power supply
.....
TI's EMI-optimized integrated transformer technology miniaturizes isolated power transfer into IC-sized packaging
Texas Instruments will show what’s next for automotive electronics 
Texas Instruments will show what’s next for automotive electronics and industrial automation at electronica 2018
Visit TI at electronica 2018, November 13-16, hall C4, booth 131
.....
New robust, noise-immune capacitive-sensing MCUs from TI bring touch control to cost-sensitive industrial applications
MSP430™ microcontrollers with CapTIvate™ technology offer value and performance to applications exposed to electromagnetic disturbances, oil, water and grease
.....
New robust, noise-immune capacitive-sensing MCUs from TI bring touch control to cost-sensitive industrial applications
Industry's smallest 36-V, 1-A DC/DC step-down power module shrinks board space by up to 58 percent
Industry's smallest 36-V, 1-A DC/DC step-down power module shrinks board space by up to 58 percent
Modules from Texas Instruments feature tiny MicroSiP packaging and achieve up to 92 percent efficiency
.....
Tiny but mighty: smallest amplifiers deliver high performance for challenging system designs
TI's new operational amplifier and comparators reduce overall system footprint in IoT, personal electronics and industrial applications
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Tiny but mighty: smallest amplifiers deliver high performance for challenging system designs
TI introduces single-chip buck-boost battery charge controllers enabling USB Type-C™ and USB Power Delivery support
TI introduces single-chip buck-boost battery charge controllers enabling USB Type-C™ and USB Power Delivery support
Texas Instruments today introduced a pair of highly flexible, single-chip buck-boost battery charge controllers for one- to four-cell (1S to 4S) designs. The bq25703A and bq25700A synchronous charge controllers support efficient charging through USB Type-C and other USB ports in end equipment ranging from notebooks and tablets to power banks, drones and smart home applications.
.....
New family of Texas Instruments SoCs drives down cost of multi-protocol industrial Ethernet communication
Sitara™ AMIC110 system on chip (SoC) simplifies industrial Ethernet communication and provides design versatility by supporting more than 10 standards
.....
New family of Texas Instruments SoCs drives down cost of multi-protocol industrial Ethernet communication
TI technology extends flight time and battery life of quadcopters and industrial drones
TI technology extends flight time and battery life of quadcopters and industrial drones
New reference designs feature latest innovation in battery management and motor control efficiency
.....
Texas Instruments is engineering industrial and automotive innovation at electronica 2016
Visit TI at electronica 2016, November 08-11, hall A4, booth 219
.....
Texas Instruments is engineering industrial and automotive innovation 
TI introduces chokeless high-speed CAN transceiver families with industry-leading EMC performance
TI introduces chokeless high-speed CAN transceiver families with industry-leading EMC performance
New industrial and automotive interface devices provide leading combination of protection and compliance
.....
TI introduces industry’s highest-performance wideband RF phase-locked loops with integrated voltage-controlled oscillators
Wide frequency range of up to 9.8 GHz and best phase noise performance reduce system complexity
.....
TI introduces industry’s highest-performance wideband RF phase-locked loops 
TI drives high-voltage batteries with industry's first 100-V high-side FET driver
TI drives high-voltage batteries with industry's first 100-V high-side FET driver
Unprecedented flexibility and power protection for advanced industrial battery applications
.....
TI introduces the industry's highest-performance audio operational amplifier
Lowest distortion and noise, high linear output current, and low power push the boundaries for professional and portable audio
.....
TI introduces the industry's highest-performance audio operational amplifier
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