BQ79616-Q1, BQ79614-Q1, BQ79612-Q1 Functional Safety-Compliant Automotive Battery Monitor

BQ79616-Q1, BQ79614-Q1, BQ79612-Q1 Functional Safety-Compliant Automotive 16S/14S/12S Battery Monitor, Balancer and Integrated Hardware Protector

 

TEXAS INSTRUMENTS

 

Description

BQ79612-Q1, BQ79614-Q1 및 BQ79616-Q1은 HEV/EV의 고전압 배터리 관리 시스템에서 12S, 14S 및 16S 배터리 모듈에 대해 200μs 미만의 고정확도 셀 전압 측정을 제공합니다. 모니터 제품군은 동일한 패키지 유형에서 다양한 채널 옵션을 제공하여 핀 간 호환성을 제공하고 모든 플랫폼에서 기존 소프트웨어 및 하드웨어의 높은 재사용을 지원합니다. 통합 프런트 엔드 필터를 통해 시스템은 셀 입력 채널에서 단순하고 낮은 정격 전압 차동 RC 필터를 구현할 수 있습니다. 통합된 사후 ADC 저역 통과 필터는 더 나은 충전 상태(SOC) 계산을 위해 필터링된 DC와 같은 전압 측정을 가능하게 합니다. 이 장치는 과열 상태를 피하기 위해 균형을 자동으로 일시 중지하고 다시 시작하는 온도 모니터링과 함께 자율적인 내부 셀 균형을 지원합니다.

 

Features
• Qualified for automotive applications
• AEC-Q100 Qualified with the following results:
   – Device temperature grade 1: –40°C to +125°C ambient operating temperature range
   – Device HBM ESD classification level 2
   – Device CDM ESD classification level C4B
• Functional Safety-Compliant
   – Developed for functional safety applications
   – Documentation to aid ISO 26262 system design
   – Systematic capability up to ASIL D
   – Hardware capability up to ASIL D
• +/- 1.5mV ADC accuracy
• Pin-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)
• Built-in redundancy path for voltage and temperature diagnostics
• Highly accurate cell voltage measurements within 128 µs for all cell channels
• Integrated post-ADC configurable digital low-pass filters
• Supports bus bar connection and measurement
• Built-in host-controlled hardware reset to emulate POR-like device reset
• Supports internal cell balancing
   – Balancing current at 240 mA
   – Built-in balancing thermal management with automatic pause and resume control
• Isolated differential daisy chain communication with optional ring architecture
• Embedded fault signal and heartbeat through communication line
• UART/SPI host interface/communication bridge device BQ79600-Q1
• Built-in SPI master

 

 

 

 

 

 

 

 

 

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-성경 잠언 21장 2절