Inicio Circuitos integrados de gestión de baterías CI para cargador de batería
Inicio
Circuitos integrados de gestión de baterías
CI para cargador de batería
NUEVO

BQ25853-Q1

ACTIVO

Controlador automotriz de supercondensador buck-boost bidireccional de 70 V controlado por I2C

Haga su pedido ahora
Hoja de datos

BQ25853-Q1

ACTIVO
Hoja de datos Haga su pedido ahora

Detalles del producto

Rating Automotive Number of series cells 16 Cell chemistry Li-Ion/Li-Polymer, LiFePO4, Lithium Phosphate/LiFePO4, NiMH, SuperCap Charge current (max) (A) 20 Features AEC-Q100 Automotive Qual, Adjustable switching frequency, BAT temp thermistor monitoring (JEITA profile), Bidirectional, IC thermal regulation, ICO (Input Current Optimization), IINDPM (Input current limit), Input OVP, Integrated ADC, SYNC Pin, USB C/PD compatible, VINDPM (Input voltage threshold to maximize adaptor power) Vin (min) (V) 4.4 Vin (max) (V) 70 Absolute max Vin (max) (V) 85 Control topology Switch-Mode Buck-boost Battery charge voltage (min) (V) 0 Battery charge voltage (max) (V) 70 Control interface I2C, Standalone (RC-Settable) TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 150
Rating Automotive Number of series cells 16 Cell chemistry Li-Ion/Li-Polymer, LiFePO4, Lithium Phosphate/LiFePO4, NiMH, SuperCap Charge current (max) (A) 20 Features AEC-Q100 Automotive Qual, Adjustable switching frequency, BAT temp thermistor monitoring (JEITA profile), Bidirectional, IC thermal regulation, ICO (Input Current Optimization), IINDPM (Input current limit), Input OVP, Integrated ADC, SYNC Pin, USB C/PD compatible, VINDPM (Input voltage threshold to maximize adaptor power) Vin (min) (V) 4.4 Vin (max) (V) 70 Absolute max Vin (max) (V) 85 Control topology Switch-Mode Buck-boost Battery charge voltage (min) (V) 0 Battery charge voltage (max) (V) 70 Control interface I2C, Standalone (RC-Settable) TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 150
VQFN (RRV) 36 30 mm² (6 mm × 5 mm)
  • AEC-Q100 qualified for automotive applications
    • Temperature grade 1: −40ºC ≤ TA≤ 150ºC
  • Wide input voltage operating range: 4.4V to 70V
  • Wide output voltage operating range: up-to 70V supercapacitor charging
  • Synchronous buck-boost controller with NFET drivers
    • Buck only mode configurable with MODE pin
    • Adjustable fSW from 200kHz to 600kHz
    • Switching frequency dithering for EMI noise reduction (DRSS)
    • Optional synchronization to external clock
    • Integrated loop compensation with soft start
    • Optional gate driver supply input for optimized efficiency
  • Bidirectional converter operation to support autonomous backup mode with no I2C interactions
    • VREV_FB pin to program system voltage in reverse mode with resistor divider
    • ACUV pin to program reverse mode automatic entry/exit threshold
    • Adjustable output current regulation (RBAT_SNS) up to 35A using 2.5mΩ resistor
  • High accuracy
    • ±0.5% charge voltage regulation
    • ±3% charge/input current regulation
    • ±0.5% reverse mode voltage regulation
    • ±2% input voltage regulation
  • I2C controlled for optimal system performance with resistor-programmable option
    • Hardware adjustable input and output current limits
  • Integrated 16-bit ADC for voltage, current, and temperature monitoring
  • High safety integration
    • Adjustable input over- and under-voltage protection
    • Overvoltage and overcurrent protection
    • Thermal shutdown
  • Package
    • 36-pin 5mm × 6mm QFN with wettable flanks
  • Functional Safety-Capable
  • AEC-Q100 qualified for automotive applications
    • Temperature grade 1: −40ºC ≤ TA≤ 150ºC
  • Wide input voltage operating range: 4.4V to 70V
  • Wide output voltage operating range: up-to 70V supercapacitor charging
  • Synchronous buck-boost controller with NFET drivers
    • Buck only mode configurable with MODE pin
    • Adjustable fSW from 200kHz to 600kHz
    • Switching frequency dithering for EMI noise reduction (DRSS)
    • Optional synchronization to external clock
    • Integrated loop compensation with soft start
    • Optional gate driver supply input for optimized efficiency
  • Bidirectional converter operation to support autonomous backup mode with no I2C interactions
    • VREV_FB pin to program system voltage in reverse mode with resistor divider
    • ACUV pin to program reverse mode automatic entry/exit threshold
    • Adjustable output current regulation (RBAT_SNS) up to 35A using 2.5mΩ resistor
  • High accuracy
    • ±0.5% charge voltage regulation
    • ±3% charge/input current regulation
    • ±0.5% reverse mode voltage regulation
    • ±2% input voltage regulation
  • I2C controlled for optimal system performance with resistor-programmable option
    • Hardware adjustable input and output current limits
  • Integrated 16-bit ADC for voltage, current, and temperature monitoring
  • High safety integration
    • Adjustable input over- and under-voltage protection
    • Overvoltage and overcurrent protection
    • Thermal shutdown
  • Package
    • 36-pin 5mm × 6mm QFN with wettable flanks
  • Functional Safety-Capable

The BQ25853-Q1 is an automotive grade, wide input voltage, switched-mode buck-boost battery charge controller with bidirectional power flow support. The device offers high-efficiency supercapacitor charging over a wide voltage range with accurate charge current and charge voltage regulation. The device integrates all the loop compensation for the buck-boost converter, thereby providing a high density design with ease of use. In reverse mode, the device draws power from the supercapacitor and regulates the input terminal voltage with an added constant current loop for protection.

Besides the I2C host-controlled charging mode, the device also supports standalone charging mode via resistor programmable limits. Input current, charge current, charge voltage regulation, and reverse mode voltage regulation targets can be set via the ILIM_HIZ, ICHG, and FB pins, respectively.

The BQ25853-Q1 is an automotive grade, wide input voltage, switched-mode buck-boost battery charge controller with bidirectional power flow support. The device offers high-efficiency supercapacitor charging over a wide voltage range with accurate charge current and charge voltage regulation. The device integrates all the loop compensation for the buck-boost converter, thereby providing a high density design with ease of use. In reverse mode, the device draws power from the supercapacitor and regulates the input terminal voltage with an added constant current loop for protection.

Besides the I2C host-controlled charging mode, the device also supports standalone charging mode via resistor programmable limits. Input current, charge current, charge voltage regulation, and reverse mode voltage regulation targets can be set via the ILIM_HIZ, ICHG, and FB pins, respectively.
filter Buscar otro/a CI para cargador de batería
Descargar Ver vídeo con transcripción Video
Solicitar más información

La hoja de datos completa está disponible. Solicitar ahora

Documentación técnica

No se encontraron resultados. Borre su búsqueda y vuelva a intentarlo.
Ver todo 2
Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos BQ25853-Q1 Automotive Bidirectional Charge Controller for Backup Power datasheet (Rev. A) PDF | HTML 4/06/2026
Application brief Designing a Robust Backup Power System for Automotive Applications PDF | HTML 5/06/2026

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

BQ25853EVM — Módulo de evaluación BQ25853-Q1

El módulo de evaluación (EVM) BQ25853EVM es un sistema de evaluación completo para el circuito integrado (IC) BQ25853-Q1, un controlador de carga de supercondensador buck-boost con un amplio rango de entrada de 4.2 V a 70 V, un amplio rango de tensión de salida de hasta 70 V y capacidades (...)

Guía del usuario: PDF | HTML
Productos y hardware compatibles
En inventario
Límite:
??asset.out-of-stock-ti_es_MX??
No disponible
Controlador o biblioteca

BQ25853Q1-DESIGN — Hoja de datos completa del BQ25853-Q1

BQ25853-Q1 full data sheet and other information are available by request.
Productos y hardware compatibles
Herramienta de cálculo

BQ25853-Q1-CALC — Calculadora de diseño BQ25853-Q1

BQ25853-Q1 design calculator is a calculation tool for BQ25853-Q1 which is a wide input voltage, switched mode, buck-boost supercapacitor charge controller with bidirectional power flow support.
Productos y hardware compatibles
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
VQFN (RRV) 36 Ultra Librarian
Se aplican los Términos y condiciones estándar de TI para los elementos de evaluación.

Pedidos y calidad

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

Ver todos los temas del foro en inglés

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 alguna pregunta sobre calidad, encapsulados o pedido de productos de TI, consulte el servicio de asistencia de TI. ​​​​​​​​​​​​​​

Videos