BQ25822

ACTIVO

Controlador de carga de buck bidireccional de 70 V con ruta de potencia y modo de respaldo automá

Detalles del producto

Rating Catalog Number of series cells 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 Cell chemistry SuperCap Charge current (max) (A) 20 Features Adjustable switching frequency, BAT temp thermistor monitoring (JEITA profile), Bidirectional, IC thermal regulation, IINDPM (Input current limit), Input OVP, Integrated ADC, Power Path, SYNC Pin, 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 Battery charge voltage (min) (V) 0 Battery charge voltage (max) (V) 70 Control interface I2C Operating temperature range (°C) -40 to 125
Rating Catalog Number of series cells 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 Cell chemistry SuperCap Charge current (max) (A) 20 Features Adjustable switching frequency, BAT temp thermistor monitoring (JEITA profile), Bidirectional, IC thermal regulation, IINDPM (Input current limit), Input OVP, Integrated ADC, Power Path, SYNC Pin, 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 Battery charge voltage (min) (V) 0 Battery charge voltage (max) (V) 70 Control interface I2C Operating temperature range (°C) -40 to 125
VQFN (RRV) 36 30 mm² 6 x 5
  • Wide input voltage operating range: 4.4V to 70V
  • Wide battery voltage operating range: up-to 70V with multi-chemistry support:
    • 1- to 14-cell Li-ion charge profile
    • 1- to 16-cell LiFePO4 charge profile
    • Up-to 70V supercapacitor charging
  • Synchronous buck charge controller with NFET drivers
    • 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 (Reverse Mode) supporting USB-PD Extended Power Range (EPR)
    • Adjustable input voltage (VAC) regulation from 3.3V to 65V with 20mV/step
    • Adjustable input current regulation (RAC_SNS) from 0.8A to 40A with 100mA/step using 2.5mΩ resistor
  • High accuracy
    • ±0.5% charge voltage regulation
    • ±3% charge/input current 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 overvoltage and undervoltage protection
    • Battery overvoltage and overcurrent protection
    • Charging safety timer
    • Thermal shutdown
  • Status outputs
    • Input power present status (PG)
    • Charger operation status (STAT1, STAT2)
  • Package
    • 36-pin 5mm × 6mm QFN
  • Wide input voltage operating range: 4.4V to 70V
  • Wide battery voltage operating range: up-to 70V with multi-chemistry support:
    • 1- to 14-cell Li-ion charge profile
    • 1- to 16-cell LiFePO4 charge profile
    • Up-to 70V supercapacitor charging
  • Synchronous buck charge controller with NFET drivers
    • 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 (Reverse Mode) supporting USB-PD Extended Power Range (EPR)
    • Adjustable input voltage (VAC) regulation from 3.3V to 65V with 20mV/step
    • Adjustable input current regulation (RAC_SNS) from 0.8A to 40A with 100mA/step using 2.5mΩ resistor
  • High accuracy
    • ±0.5% charge voltage regulation
    • ±3% charge/input current 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 overvoltage and undervoltage protection
    • Battery overvoltage and overcurrent protection
    • Charging safety timer
    • Thermal shutdown
  • Status outputs
    • Input power present status (PG)
    • Charger operation status (STAT1, STAT2)
  • Package
    • 36-pin 5mm × 6mm QFN

The BQ25822 is a wide input voltage, switched-mode buck Li-Ion, Li-polymer, or LiFePO4 battery charge controller with bidirectional power flow support. The device offers high-efficiency battery charging over a wide voltage range with accurate charge current and charge voltage regulation, in addition to automatic charge preconditioning, termination, and charge status indication. The device integrates all the loop compensation for the buck converter, thereby providing a high density solution with ease of use. In reverse mode, the device draws power from the battery 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, and charge voltage regulation targets can be set via the ILIM_HIZ, ICHG, and FB pins, respectively.

The BQ25822 is a wide input voltage, switched-mode buck Li-Ion, Li-polymer, or LiFePO4 battery charge controller with bidirectional power flow support. The device offers high-efficiency battery charging over a wide voltage range with accurate charge current and charge voltage regulation, in addition to automatic charge preconditioning, termination, and charge status indication. The device integrates all the loop compensation for the buck converter, thereby providing a high density solution with ease of use. In reverse mode, the device draws power from the battery 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, and charge voltage regulation targets can be set via the ILIM_HIZ, ICHG, and FB pins, respectively.

Descargar Ver vídeo con transcripción Video

Documentación técnica

star =Principal documentación para este producto seleccionada por TI
No se encontraron resultados. Borre su búsqueda y vuelva a intentarlo.
Ver todo 2
Tipo Título Fecha
* Data sheet BQ25822: Standalone Buck and Boost Backup Supply Controller datasheet (Rev. A) PDF | HTML 03 oct 2025
Application note How to Implement a Standalone High-Power Supercapacitor Backup Design with BQ25822 PDF | HTML 13 oct 2025

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

BQ25820EVM — Módulo de evaluación BQ25820

El módulo de evaluación (EVM) BQ25820EVM es un sistema de evaluación para el circuito integrado (IC) BQ25820. El IC BQ25820 es un controlador de carga de batería buck con control directo de la ruta de alimentación. El BQ25820 tiene un amplio rango de entrada de 4.2 V a 70 V, un amplio rango de (...)
Guía del usuario: PDF | HTML
Herramienta de cálculo

BQ25756-DESIGN-CALC BQ25756 design calculator

BQ25756 design calculator is a calculation tool for BQ25756 which is a wide input voltage, switched mode buck-boost Li-Ion, Li-polymer, or LiFePO4 battery charge controller with bidirectional power flow support.
Productos y hardware compatibles

Productos y hardware compatibles

Productos
Circuitos integrados para cargadores de baterías
BQ25756 Regulador de carga bidireccional buck-boost de 70 V independiente o controlado por I²C con seguim BQ25758 Controlador buck-boost bidireccional de 60 V controlado por circuito interintegrado (I²C) compatible BQ25756E Controlador de carga bidireccional buck-boost autónomo o controlado por I²C para baterías de hasta 7 BQ25856-Q1 Controlador de carga buck-boost bidireccional de 70 V controlado por I2C para automoción BQ25758A Controlador buck-boost bidireccional de 60 V controlado por circuito interintegrado (I²C) compati BQ25750 Regulador de carga bidireccional reductor-elevador de 70 V independiente o controlado por I²C con ru BQ25858-Q1 Controlador buck-boost bidireccional de 65 V independiente o controlado por I²C para automoción BQ25858B-Q1 Controlador buck-boost bidireccional de 65 V independiente o controlado por I²C para automoción BQ25751 Controlador buck-boost de carga de batería de plomo-ácido de 70 V, controlado por I²C o independient BQ25820 Regulador de carga bidireccional reductor-elevador de 70 V independiente o controlado por I²C con ru BQ25758S Controlador buck-boost bidireccional de 32 V controlado por I²C compatible con USB, PD, EPR y PPS BQ25822 Controlador de carga de buck bidireccional de 70 V con ruta de potencia y modo de respaldo automá
Desarrollo de hardware
Placa de evaluación
BQ25756EVM EVM BQ25756 para controlador de carga de batería bidireccional buck-boost, 1-14 celdas
Herramienta de diseño

BQ25822-DESIGN BQ25822 Datasheet

.
Productos y hardware compatibles

Productos y hardware compatibles

Productos
Circuitos integrados para cargadores de baterías
BQ25822 Controlador de carga de buck bidireccional de 70 V con ruta de potencia y modo de respaldo automá
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
VQFN (RRV) 36 Ultra Librarian

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

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