Produktdetails

Vin (max) (V) 20 Features High precision, Integrated ADC, Overtemperature protection, Overvoltage protection, Stackable (built-in interface), Temperature sensing, Undertemperature protection, Undervoltage protection Operating temperature range (°C) -40 to 125 Rating Automotive Battery overvoltage protection (min) (V) 6 Battery overvoltage protection (max) (V) 20 TI functional safety category Functional Safety-Compliant Communication interface Daisy Chain, SPI controller, UART Operating current (typ) (µA) 5000
Vin (max) (V) 20 Features High precision, Integrated ADC, Overtemperature protection, Overvoltage protection, Stackable (built-in interface), Temperature sensing, Undertemperature protection, Undervoltage protection Operating temperature range (°C) -40 to 125 Rating Automotive Battery overvoltage protection (min) (V) 6 Battery overvoltage protection (max) (V) 20 TI functional safety category Functional Safety-Compliant Communication interface Daisy Chain, SPI controller, UART Operating current (typ) (µA) 5000
HTQFP (PHP) 48 81 mm² 9 x 9
  • AEC-Q100 qualified –40°C to +125°C
  • Functional safety - compliant targeted
    • Documentation to aid ISO 26262 system design
    • Systematic capability up to ASIL D targeted
    • Hardware capability up to ASIL D targeted
  • 17 single-ended voltage channels
    • High voltage pack, link, charge measurement accuracy <0.2%
    • Pack and cell VI sync to 64uS
  • 2 independent current sense ADCs (BQ79731-Q1)
    • ±0.05% gain error drift
    • Input range = ±275 mV
  • 2 Over current detect comparators (BQ79731-Q1)
    • ±1% accuracy
    • Selectable bi-directional thresholds
    • Programmable OC
  • Integrated Coulomb counting (BQ79731-Q1)
  • 15 GPIO inputs as IO, I2C, SPI, ADC and temp sense
  • Dedicated MOSFET switch drive pins
  • Intelligent SPI contoller HUB
    • Support multiple SPI peripheral devices
    • HW pin to trigger contactor drivers and Pyro Fuse drivers
  • Stackable and register map compatible with with cell monitors like the 18S (BQ79718)
  • AEC-Q100 qualified –40°C to +125°C
  • Functional safety - compliant targeted
    • Documentation to aid ISO 26262 system design
    • Systematic capability up to ASIL D targeted
    • Hardware capability up to ASIL D targeted
  • 17 single-ended voltage channels
    • High voltage pack, link, charge measurement accuracy <0.2%
    • Pack and cell VI sync to 64uS
  • 2 independent current sense ADCs (BQ79731-Q1)
    • ±0.05% gain error drift
    • Input range = ±275 mV
  • 2 Over current detect comparators (BQ79731-Q1)
    • ±1% accuracy
    • Selectable bi-directional thresholds
    • Programmable OC
  • Integrated Coulomb counting (BQ79731-Q1)
  • 15 GPIO inputs as IO, I2C, SPI, ADC and temp sense
  • Dedicated MOSFET switch drive pins
  • Intelligent SPI contoller HUB
    • Support multiple SPI peripheral devices
    • HW pin to trigger contactor drivers and Pyro Fuse drivers
  • Stackable and register map compatible with with cell monitors like the 18S (BQ79718)

The device can be used to measure divided down high voltage nodes in a battery system. It can measure voltage across Fuse, Contactors and check isolation voltage in battery junction box (BJB) system. The device has two integrated current sense (BQ79731-Q1) paths supporting low side shunt resistor. Coulomb counting (BQ79731-Q1) function is available for accurate SOC calculation. There are 15 GPIOs/auxiliary inputs that can be used for HV measurements, thermistor measurements and driving relays. There are 4 SW outputs that can be used to drive MOSFET switches in the measurement path. The device can function as a SPI HUB and interface with upto 8 separate SPI devices/groups. Over current protection response can be achieved autonomously using HW Pins for fast protection in dangerous over current events. The isolated bi-directional daisy chain ports support both capacitor and transformer based isolation. The device can also communicate with MCU over SPI.

The device can be used to measure divided down high voltage nodes in a battery system. It can measure voltage across Fuse, Contactors and check isolation voltage in battery junction box (BJB) system. The device has two integrated current sense (BQ79731-Q1) paths supporting low side shunt resistor. Coulomb counting (BQ79731-Q1) function is available for accurate SOC calculation. There are 15 GPIOs/auxiliary inputs that can be used for HV measurements, thermistor measurements and driving relays. There are 4 SW outputs that can be used to drive MOSFET switches in the measurement path. The device can function as a SPI HUB and interface with upto 8 separate SPI devices/groups. Over current protection response can be achieved autonomously using HW Pins for fast protection in dangerous over current events. The isolated bi-directional daisy chain ports support both capacitor and transformer based isolation. The device can also communicate with MCU over SPI.

Herunterladen Video mit Transkript ansehen Video
„Informationen“

Weitere Informationen anfordern

Das vollständige Datenblatt und weitere Informationen sind verfügbar. Jetzt anfordern

Ähnliche Produkte, die für Sie interessant sein könnten

Ähnliche Funktionalität wie verglichener Baustein
BQ79631-Q1 AKTIV Monitor für Hochpannungsakkupakete in der Automobilindustrie mit Sensoren für Spannung, Strom und Is BQ79731-Q1 is a newer generation of device supports 17 voltage channels' measurements with integrated columb counting

Design und Entwicklung

Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.

Evaluierungsplatine

BQ79731Q1EVM-060 — BQ7973x-Q1 Evaluierungsmodul für Spannungs-, Strom- und Isolationswiderstandsüberwachung

Das BQ79731Q1EVM-Evaluierungsmodul (EVM), auch als BMS060 gehandelt, beschreibt die allgemeinen Funktionen, das Funktionsprinzip, die Hardwareeinrichtung und die Verwendung des BQ7973x-Q1. Dabei handelt es sich um hochintegrierte Spannungs-, Strom- und Isolationswiderstandsüberwachungsbausteine, (...)

Simulationstool

CMSO-3P-BCS — Simulator für comemso-Batteriezellen

Der Battery Cell Simulator (BCS) ist der Kern aller Tests Battery Management Systeme  (BMS). Es ermöglicht die Simulation aller erforderlichen Zustände und Fehler für das BMS auf Zellenebene.
Gehäuse Pins Herunterladen
HTQFP (PHP) 48 Optionen anzeigen

Bestellen & Qualität

Beinhaltete Information:
  • RoHS
  • REACH
  • Bausteinkennzeichnung
  • Blei-Finish/Ball-Material
  • MSL-Rating / Spitzenrückfluss
  • MTBF-/FIT-Schätzungen
  • Materialinhalt
  • Qualifikationszusammenfassung
  • Kontinuierliches Zuverlässigkeitsmonitoring
Beinhaltete Information:
  • Werksstandort
  • Montagestandort

Empfohlene Produkte können Parameter, Evaluierungsmodule oder Referenzdesigns zu diesem TI-Produkt beinhalten.

Support und Schulungen

TI E2E™-Foren mit technischem Support von TI-Ingenieuren

Inhalte werden ohne Gewähr von TI und der Community bereitgestellt. Sie stellen keine Spezifikationen von TI dar. Siehe Nutzungsbedingungen.

Bei Fragen zu den Themen Qualität, Gehäuse oder Bestellung von TI-Produkten siehe TI-Support. ​​​​​​​​​​​​​​

Videos