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Circuitos integrados de gestión de baterías
Monitores y equilibradores de batería

BQ76930

ACTIVO

Monitor de batería de celdas de iones de litio y fosfato de litio de serie 6 a 10 (familia bq76940)

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BQ76930

ACTIVO
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Detalles del producto

Number of series cells (min) 6 Vin (max) (V) 50 Features Digital output, LDO output, Low-side driver, Overcurrent in discharging protection, Short-current detection Device type Cell monitor and balancer Number of series cells (max) 10 Operating temperature range (°C) -40 to 85 Rating Catalog Battery overvoltage protection (min) (V) 3.15 Battery overvoltage protection (max) (V) 4.7 Communication interface I2C Operating current (typ) (µA) 40
Number of series cells (min) 6 Vin (max) (V) 50 Features Digital output, LDO output, Low-side driver, Overcurrent in discharging protection, Short-current detection Device type Cell monitor and balancer Number of series cells (max) 10 Operating temperature range (°C) -40 to 85 Rating Catalog Battery overvoltage protection (min) (V) 3.15 Battery overvoltage protection (max) (V) 4.7 Communication interface I2C Operating current (typ) (µA) 40
TSSOP (DBT) 30 49.92 mm² 7.8 x 6.4
  • AFE monitoring features
    • Pure digital interface
    • Internal ADC measures cell voltage, die temperature, and external thermistor
    • A separate, internal ADC measures pack current (coulomb counter)
    • Directly supports up to three thermistors (103AT)
  • Hardware protection features
    • Overcurrent in Discharge (OCD)
    • Short Circuit in Discharge (SCD)
    • Overvoltage (OV)
    • Undervoltage (UV)
    • Secondary protector fault detection
  • Additional features
    • Integrated cell balancing FETs
    • Charge, discharge low-side NCH FET drivers
    • Alert interrupt to host microcontroller
    • 2.5-V or 3.3-V output voltage regulator
    • No EEPROM programming necessary
    • High supply voltage absolute maximum (up to 108 V)
    • Simple I2C compatible interface (CRC option)
    • Random cell connection tolerant
  • AFE monitoring features
    • Pure digital interface
    • Internal ADC measures cell voltage, die temperature, and external thermistor
    • A separate, internal ADC measures pack current (coulomb counter)
    • Directly supports up to three thermistors (103AT)
  • Hardware protection features
    • Overcurrent in Discharge (OCD)
    • Short Circuit in Discharge (SCD)
    • Overvoltage (OV)
    • Undervoltage (UV)
    • Secondary protector fault detection
  • Additional features
    • Integrated cell balancing FETs
    • Charge, discharge low-side NCH FET drivers
    • Alert interrupt to host microcontroller
    • 2.5-V or 3.3-V output voltage regulator
    • No EEPROM programming necessary
    • High supply voltage absolute maximum (up to 108 V)
    • Simple I2C compatible interface (CRC option)
    • Random cell connection tolerant

The BQ769x0 family of robust analog front-end (AFE) devices serves as part of a complete pack monitoring and protection solution for next-generation, high-power systems, such as light electric vehicles, power tools, and uninterruptible power supplies. The BQ769x0 is designed with low power in mind: Sub-blocks within the IC may be enabled or disabled to control the overall chip current consumption, and a SHIP mode provides a simple way to put the pack into an ultra-low power state.

The BQ76920 device supports up to 5-series cells or typical 18-V packs, the BQ76930 handles up to 10-series cells or typical 36-V packs, and the BQ76940 works for up to 15-series cells or typical 48-V packs. A variety of battery chemistries may be managed with these AFEs, including Li-ion, Li-iron phosphate, and more. Through I2C, a host controller can use the BQ769x0 to implement many battery pack management functions, such as monitoring (cell voltages, pack current, pack temperatures), protection (controlling charge/discharge FETs), and balancing. Integrated A/D converters enable a purely digital readout of critical system parameters, with calibration handled in TI’s manufacturing process.

The BQ769x0 family of robust analog front-end (AFE) devices serves as part of a complete pack monitoring and protection solution for next-generation, high-power systems, such as light electric vehicles, power tools, and uninterruptible power supplies. The BQ769x0 is designed with low power in mind: Sub-blocks within the IC may be enabled or disabled to control the overall chip current consumption, and a SHIP mode provides a simple way to put the pack into an ultra-low power state.

The BQ76920 device supports up to 5-series cells or typical 18-V packs, the BQ76930 handles up to 10-series cells or typical 36-V packs, and the BQ76940 works for up to 15-series cells or typical 48-V packs. A variety of battery chemistries may be managed with these AFEs, including Li-ion, Li-iron phosphate, and more. Through I2C, a host controller can use the BQ769x0 to implement many battery pack management functions, such as monitoring (cell voltages, pack current, pack temperatures), protection (controlling charge/discharge FETs), and balancing. Integrated A/D converters enable a purely digital readout of critical system parameters, with calibration handled in TI’s manufacturing process.
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Documentación técnica

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* Data sheet BQ769x0 3-Series to 15-Series Cell Battery Monitor Family for Li-Ion and Phosphate Applications datasheet (Rev. I) PDF | HTML 14 mar 2022
User guide bq76920, bq76930, bq76940 AFE FAQ (Rev. A) PDF | HTML 01 oct 2021
Technical article Protector, monitor or gauge – selecting the correct battery electronics for your L PDF | HTML 13 jun 2019
Application note BQ769x0 Pin Equivalent Diagrams (Rev. A) 03 abr 2019
User guide bq76930 and bq76940 Evaluation Module (Rev. C) 10 dic 2018
Application note UART-Based Communication Protocol for Intermodule Communication of Light Vehicle 17 may 2017
Application note bq769x0 BMS Configurations for Cordless Appliances 23 mar 2017
Application note Fault Monitoring for High-Availability Systems using the bq769x0 03 feb 2017
Application note Embedded Scheduler in Cell Battery Monitor of the bq769x0 10 ago 2016
Application note bq769x0 Family Top 10 Design Considerations (Rev. A) PDF | HTML 02 may 2016
Application note bq769x0 boot switch alternatives 21 dic 2015
Application note I2C Communication Sample Code for the bq76940 with CRC Based on the MSP430 (Rev. B) 14 may 2014

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Placa de evaluación

BQ76930EVM — Placa de evaluación de BQ76930 con BQ78350

The bq76930EVM is a populated circuit board for evaluation of the bq76930 analog front-end (AFE) along with the bq78350 Battery Management Controller that serves as part of a complete pack monitoring and protection solution for 6 to 10-series Lithium Ion, Lithium iron phosphate, and more battery (...)

Guía del usuario: PDF
No disponible en TI.com
Firmware

SLUC583 — bq769x0 I2C Sample Code With CRC

Productos y hardware compatibles

Productos y hardware compatibles

Productos
Monitores y equilibradores de batería
BQ76920 — Monitor de batería de celdas de iones de litio y fosfato de litio de serie 3 a 5 (familia bq76940) BQ76930 — Monitor de batería de celdas de iones de litio y fosfato de litio de serie 6 a 10 (familia bq76940) BQ76940 — Monitor de batería de celdas de iones de litio y fosfato de litio de serie 9 a 15 (familia bq76940)
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Soporte de software

SLUC539 — bq76940/bq76930/bq76920 Evaluation Software

Productos y hardware compatibles

Productos y hardware compatibles

Productos
Monitores y equilibradores de batería
BQ76920 — Monitor de batería de celdas de iones de litio y fosfato de litio de serie 3 a 5 (familia bq76940) BQ76930 — Monitor de batería de celdas de iones de litio y fosfato de litio de serie 6 a 10 (familia bq76940) BQ76940 — Monitor de batería de celdas de iones de litio y fosfato de litio de serie 9 a 15 (familia bq76940)
Desarrollo de hardware
Placa de evaluación
BQ76920EVM — Placa de evaluación de BQ76920 con BQ78350  BQ76930EVM — Placa de evaluación de BQ76930 con BQ78350 BQ76940EVM — Placa de evaluación de BQ76940 con BQ78350
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Diseños de referencia

TIDA-01093 — Diseño de referencia del módulo de gestión de baterías industriales para aplicaciones de 20 s

High serial cell count battery (>15s) systems are becoming more and more common for industrial applications. These applications are cost sensitive and require a simple solution that includes monitoring, protection, and control or even SOC (State of Charge) information rather than only basic (...)
Design guide: PDF
Esquema: PDF
Diseños de referencia

TIDA-00449 — Monitoreo, equilibrio y protección completa del paquete de la batería 10s Diseño de referencia de de

This reference design is ready tested for 10 cells in series battery pack monitoring, balancing and protection for power tools. Power tools increasingly use highly power-dense Li-Ion or Li-Iron phosphate cells based battery packs that need to be protected from explosion due to incorrect charging or (...)
Design guide: PDF
Esquema: PDF
Paquete Pasadores Descargar
TSSOP (DBT) 30 Ver opciones
Se aplican los Términos y condiciones estándar de TI para los elementos de evaluación.

Pedidos y calidad

Información incluida:
  • RoHS
  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

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Soporte y capacitación

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