Model No: BQ79718BQPAPRQ1
Texas Instruments BQ79718BQPAPRQ1
Manufacturer: Texas Instruments
SEMICON NO.: BQ79718BQPAPRQ1
Package: 64-HTQFP
Stock: In stock
Description: Battery Battery Monitor IC 300mA 12GPIOs
SEMICON NO.: BQ79718BQPAPRQ1
Package: 64-HTQFP
Stock: In stock
Description: Battery Battery Monitor IC 300mA 12GPIOs
Quantity :
| Mfr | Texas Instruments |
| Device Type | Automotive 18-S Precision Battery Monitor |
| Number of Cells per Device | 9 to 18 series cells |
| ADC Accuracy | Dedicated ADC, ±1 mV accuracy |
| Balancing Current | 300 mA |
| GPIOs | 12 GPIOs |
| On-Chip Memory | One-time custom programming memory |
| Low-Power Mode Current | < 6 µA |
| Operating Temperature | –40°C to +125°C |
| Package | 64-HTQFP |
| Mounting Type | Surface Mount |
| Compliance | RoHS Compliant |
The BQ79718BQPAPRQ1 is a high-performance automotive-grade 18-series precise battery monitor, active balancer and integrated protector IC from Texas Instruments, housed in a compact 64-HTQFP (10x10mm) surface-mount package. It is fully AEC-Q100 Grade 1 qualified, supports ISO 26262 functional safety design up to ASIL-D compliance, features daisy-chain isolated communication interface, 1mV maximum cell voltage measurement accuracy, integrated cell balancing MOSFETs, and -40°C to +125°C wide industrial-automotive operating temperature range, making it an extremely high-safety, high-precision battery management solution for new energy electric vehicle powertrains, high-voltage hybrid EV battery packs, and industrial large-scale energy storage systems.
Key Features and Highlights
● 1mV Maximum Ultra-High Cell Voltage Measurement Accuracy: Industry-leading 1mV maximum cell voltage measurement precision eliminates the need for extra external precision voltage reference components, ensuring consistent battery state-of-charge (SOC) calculation accuracy across the full vehicle operating temperature range.
● 18-Series Maximum Direct Cell Monitoring: 18-series maximum single-chip cell voltage monitoring capability fully covers the 18S high-voltage lithium battery pack configuration requirements, minimizing the number of BMS monitoring ICs in a full vehicle battery system.
● Integrated Active Cell Balancing MOSFETs: On-chip high-current cell balancing power MOSFETs eliminate the need for external discrete balancing switches, drastically reducing overall BMS BOM cost and PCB space occupation.
● Transformer/Capacitor Isolated Daisy-Chain Communication: Native isolated daisy-chain communication interface natively supports both centralized and distributed BMS system architectures, seamlessly adapting to different new energy vehicle powertrain system design requirements.
● 1mV Maximum Ultra-High Cell Voltage Measurement Accuracy: Industry-leading 1mV maximum cell voltage measurement precision eliminates the need for extra external precision voltage reference components, ensuring consistent battery state-of-charge (SOC) calculation accuracy across the full vehicle operating temperature range.
● 18-Series Maximum Direct Cell Monitoring: 18-series maximum single-chip cell voltage monitoring capability fully covers the 18S high-voltage lithium battery pack configuration requirements, minimizing the number of BMS monitoring ICs in a full vehicle battery system.
● Integrated Active Cell Balancing MOSFETs: On-chip high-current cell balancing power MOSFETs eliminate the need for external discrete balancing switches, drastically reducing overall BMS BOM cost and PCB space occupation.
● Transformer/Capacitor Isolated Daisy-Chain Communication: Native isolated daisy-chain communication interface natively supports both centralized and distributed BMS system architectures, seamlessly adapting to different new energy vehicle powertrain system design requirements.
Frequently Asked Questions (FAQ)
Q1: What is the maximum number of series cells the BQ79718BQPAPRQ1 can monitor?
A: It supports up to 18-series lithium battery cells, fully covering the mainstream high-voltage new energy vehicle battery pack configuration requirements.
Q2: What is the highest functional safety compliance level of this IC?
A: It is fully ISO 26262 compliant with hardware and systematic capability up to ASIL-D, meeting the strictest automotive functional safety requirements.
Q1: What is the maximum number of series cells the BQ79718BQPAPRQ1 can monitor?
A: It supports up to 18-series lithium battery cells, fully covering the mainstream high-voltage new energy vehicle battery pack configuration requirements.
Q2: What is the highest functional safety compliance level of this IC?
A: It is fully ISO 26262 compliant with hardware and systematic capability up to ASIL-D, meeting the strictest automotive functional safety requirements.
Compatible Alternative BMS chip List
● BQ79716BQPAPRQ1: The 16-series maximum cell monitoring variant of the same BQ79718 family, delivering identical ASIL-D performance for 16S battery pack design upgrades.
● LTC6811HG-1#3ZZTRPBF: A Analog Devices 12-series multi-cell battery monitor IC, serving as a fully pin-compatible cross-vendor second-source alternative with comparable high-precision performance.
● BQ79758BQPAPRQ1: The enhanced 18-series BMS monitor variant of the TI BQ797xx family, featuring enhanced high-voltage ESD protection performance for ultra-strict commercial vehicle BMS deployment scenarios.
● BQ79716BQPAPRQ1: The 16-series maximum cell monitoring variant of the same BQ79718 family, delivering identical ASIL-D performance for 16S battery pack design upgrades.
● LTC6811HG-1#3ZZTRPBF: A Analog Devices 12-series multi-cell battery monitor IC, serving as a fully pin-compatible cross-vendor second-source alternative with comparable high-precision performance.
● BQ79758BQPAPRQ1: The enhanced 18-series BMS monitor variant of the TI BQ797xx family, featuring enhanced high-voltage ESD protection performance for ultra-strict commercial vehicle BMS deployment scenarios.
