Detalles del producto

Function Protection Number of series cells (min) 3, 4, 5, 6 Number of series cells (max) 4, 5, 6, 7 Features FET drive, Open wire (OW), Over-temperature (OT), Overvoltage, Stackable, Undervoltage Operating current (typ) (µA) 1 Rating Catalog Vin (max) (V) 38.5 TI functional safety category Functional Safety-Capable Overvoltage protection 4.275, 4.325 Operating temperature range (°C) -40 to 110 Battery overvoltage protection (min) (V) 4.325 Battery overvoltage protection (max) (V) 4.325
Function Protection Number of series cells (min) 3, 4, 5, 6 Number of series cells (max) 4, 5, 6, 7 Features FET drive, Open wire (OW), Over-temperature (OT), Overvoltage, Stackable, Undervoltage Operating current (typ) (µA) 1 Rating Catalog Vin (max) (V) 38.5 TI functional safety category Functional Safety-Capable Overvoltage protection 4.275, 4.325 Operating temperature range (°C) -40 to 110 Battery overvoltage protection (min) (V) 4.325 Battery overvoltage protection (max) (V) 4.325
WSON (DSS) 12 6 mm² 3 x 2
  • 3-series cell to 7-series cell protection
  • High-accuracy overvoltage protection
    • ± 10 mV at 25°C
    • ± 20 mV from 0°C to 60°C
  • Overvoltage protection options from 3.55 V to 5.1 V
  • Undervoltage protection with options from 1.0 V to 3.5 V
  • Open-wire connection detection
  • Overtemperature protection using NTC or PTC
  • Random cell connection
  • Functional safety-capable
  • Fixed internal delay timers
  • Fixed detections thresholds
  • Fixed output drive type for each of COUT and DOUT
    • Active high or active low
    • Active high drive to 6 V
    • Open drain with ability to be pulled up externally to VDD
  • Low power consumption ICC ≈ 1 µA (VCELL(ALL) < VOV)
  • Low leakage current per cell input < 100 nA with open-wire detection disabled
  • Package footprint option
    • 12-pin WSON with 0.5-mm lead pitch
  • 3-series cell to 7-series cell protection
  • High-accuracy overvoltage protection
    • ± 10 mV at 25°C
    • ± 20 mV from 0°C to 60°C
  • Overvoltage protection options from 3.55 V to 5.1 V
  • Undervoltage protection with options from 1.0 V to 3.5 V
  • Open-wire connection detection
  • Overtemperature protection using NTC or PTC
  • Random cell connection
  • Functional safety-capable
  • Fixed internal delay timers
  • Fixed detections thresholds
  • Fixed output drive type for each of COUT and DOUT
    • Active high or active low
    • Active high drive to 6 V
    • Open drain with ability to be pulled up externally to VDD
  • Low power consumption ICC ≈ 1 µA (VCELL(ALL) < VOV)
  • Low leakage current per cell input < 100 nA with open-wire detection disabled
  • Package footprint option
    • 12-pin WSON with 0.5-mm lead pitch

The BQ77207 family of products provides a range of voltage and temperature monitoring including overvoltage (OVP), undervoltage (UVP), open wire (OW), and overtemperature (OT) protection for Li-ion battery pack systems. Each cell is monitored independently for overvoltage, undervoltage, and open-wire conditions. With the addition of an external NTC or PTC thermistor, the device can detect overtemperature conditions.

In the BQ77207 device, an internal delay timer is initiated upon detection of an overvoltage, undervoltage, open-wire, or overtemperature condition. Upon expiration of the delay timer, the respective output is triggered into its active state (either high or low, depending on the configuration).

The overvoltage triggers the COUT pin if a fault is detected, and undervoltage triggers the DOUT pin if a fault is detected. If an overtemperature or open-wire fault is detected, then both the DOUT and COUT will be triggered. For quicker production-line testing, the BQ77207 device provides a Customer Test Mode (CTM) with greatly reduced delay time.

The BQ77207 family of products provides a range of voltage and temperature monitoring including overvoltage (OVP), undervoltage (UVP), open wire (OW), and overtemperature (OT) protection for Li-ion battery pack systems. Each cell is monitored independently for overvoltage, undervoltage, and open-wire conditions. With the addition of an external NTC or PTC thermistor, the device can detect overtemperature conditions.

In the BQ77207 device, an internal delay timer is initiated upon detection of an overvoltage, undervoltage, open-wire, or overtemperature condition. Upon expiration of the delay timer, the respective output is triggered into its active state (either high or low, depending on the configuration).

The overvoltage triggers the COUT pin if a fault is detected, and undervoltage triggers the DOUT pin if a fault is detected. If an overtemperature or open-wire fault is detected, then both the DOUT and COUT will be triggered. For quicker production-line testing, the BQ77207 device provides a Customer Test Mode (CTM) with greatly reduced delay time.

Descargar Ver vídeo con transcripción Video

Productos similares que pueden interesarle

open-in-new Comparar alternativas
Misma funcionalidad con diferente configuración de pines que el dispositivo comparado
BQ77216 ACTIVO Protección de tensión y temperatura para baterías de celda de iones de litio de 3-s a 16-s con tempo Optimized for higher cell count industrial battery packs.

Documentación técnica

star =Principal documentación para este producto seleccionada por TI
No se encontraron resultados. Borre su búsqueda y vuelva a intentarlo.
Ver todo 4
Tipo Título Fecha
* Data sheet BQ77207 Voltage and Temperature Protection for 3-Series to 7-Series Cell Li-Ion Batteries with Internal Delay Timer datasheet (Rev. A) PDF | HTML 28 jun 2022
Functional safety information BQ77207 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA (Rev. A) PDF | HTML 24 feb 2022
User guide BQ77207EVM User's Guide 28 oct 2021
Certificate BQ77207EVM EU RoHS Declaration of Conformity (DoC) 26 ago 2021

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

BQ77207EVM — Módulo de evaluación de BQ77207 para protector de tensión y temperatura para baterías de celda de io

El módulo de evaluación (EVM) BQ77207EVM es un sistema de evaluación completo para BQ77207, un circuito integrado de protección para baterías de iones de litio de 3 a 7 celdas. El módulo del circuito incluye un circuito integrado (IC) BQ77207, un termistor y todos los demás componentes integrados (...)

Guía del usuario: PDF
Diseños de referencia

TIDA-010268 — Diseño de referencia de un monitor de sistema de baterías de 5 a 7 segundos con control MOSFET de la

Este diseño de referencia es un diseño de un sistema de baterías de iones de litio (Li‑ion) y fosfato de hierro y litio (LiFePO4) con alta precisión de voltaje de celda de 5 a 7 segundos. El diseño supervisa con gran precisión el voltaje de cada celda, la corriente del sistema, la temperatura de la (...)
Design guide: PDF
Paquete Pasadores Descargar
WSON (DSS) 12 Ver opciones

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

Los productos recomendados pueden tener parámetros, módulos de evaluación o diseños de referencia relacionados con este producto de TI.

Soporte y capacitación

Foros de TI E2E™ con asistencia técnica de los ingenieros de TI

El contenido lo proporcionan “tal como está” TI y los colaboradores de la comunidad y no constituye especificaciones de TI. Consulte los términos de uso.

Si tiene preguntas sobre la calidad, el paquete o el pedido de productos de TI, consulte el soporte de TI. ​​​​​​​​​​​​​​

Videos