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Circuitos integrados de gestión de baterías
Circuitos integrados para cargadores de baterías

BQ25895

ACTIVO

Cargador de batería reductor de I2C, de 1 celda y 5 A con alta tensión de entrada y refuerzo de 3,1

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BQ25895

ACTIVO
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Detalles del producto

Number of series cells 1 Charge current (max) (A) 5 Vin (max) (V) 14 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (min) (V) 3.84 Battery charge voltage (max) (V) 4.6 Absolute max Vin (max) (V) 22 Control topology Switch-Mode Buck Control interface I2C Features BAT temp thermistor monitoring (hot/cold profile), IC thermal regulation, ICO (Input Current Optimization), IINDPM (Input current limit), Input OVP, Integrated ADC, Power Path, Solar input/MPPT, USB D+/D-/BC1.2 integrated, USB OTG integrated Vin (min) (V) 3.9 Rating Catalog Operating temperature range (°C) -40 to 85
Number of series cells 1 Charge current (max) (A) 5 Vin (max) (V) 14 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (min) (V) 3.84 Battery charge voltage (max) (V) 4.6 Absolute max Vin (max) (V) 22 Control topology Switch-Mode Buck Control interface I2C Features BAT temp thermistor monitoring (hot/cold profile), IC thermal regulation, ICO (Input Current Optimization), IINDPM (Input current limit), Input OVP, Integrated ADC, Power Path, Solar input/MPPT, USB D+/D-/BC1.2 integrated, USB OTG integrated Vin (min) (V) 3.9 Rating Catalog Operating temperature range (°C) -40 to 85
WQFN (RTW) 24 16 mm² 4 x 4
  • High efficiency 5-A, 1.5-MHz switch mode buck charge
    • 93% Charge efficiency at 2 A and 91% charge efficiency at 3 A charge current
    • Optimize for high voltage input (9 V to 12 V)
    • Low Power PFM Mode for light load operations
  • Boost Mode operation with adjustable output from 4.5 V to 5.5 V
    • Selectable 500-KHz to 1.5-MHz boost converter with up to 3.1-A output
    • 93% Boost efficiency at 5 V at 1 A output
  • Integrated control to switch between charge and Boost Mode
  • Single input to support USB input and adjustable high voltage adapters
    • Support 3.9-V to 14-V input voltage range
    • Input current limit (100 mA to 3.25 A with 50-mA resolution) to support USB2.0, USB3.0 standard and high voltage adapters
    • Maximum power tracking by input voltage limit up-to 14V for wide range of adapters
    • Auto detect USB SDP, CDP, DCP, and Non-standard Adapters
  • Input current optimizer (ICO) to maximize input power without overloading adapters
  • Resistance compensation (IRCOMP) from charger output to cell terminal
  • Highest battery discharge efficiency with 11-mΩ battery discharge MOSFET up to 9 A
  • Integrated ADC for system monitor (voltage, temperature, charge current)
  • Narrow VDC (NVDC) power path management
    • Instant-on works with no battery or deeply discharged battery
    • Ideal diode operation in Battery Supplement Mode
  • BATFET Control to support Ship Mode, wake up, and full system reset
  • Flexible autonomous and I2C Mode for optimal system performance
  • High integration includes all MOSFETs, current sensing and loop compensation
  • 12-µA Low battery leakage current to support Ship Mode
  • High accuracy
    • ±0.5% Charge voltage regulation
    • ±5% Charge current regulation
    • ±7.5% Input current regulation
  • Safety
    • Battery temperature sensing for charge and Boost Mode
    • Thermal regulation and thermal shutdown
  • High efficiency 5-A, 1.5-MHz switch mode buck charge
    • 93% Charge efficiency at 2 A and 91% charge efficiency at 3 A charge current
    • Optimize for high voltage input (9 V to 12 V)
    • Low Power PFM Mode for light load operations
  • Boost Mode operation with adjustable output from 4.5 V to 5.5 V
    • Selectable 500-KHz to 1.5-MHz boost converter with up to 3.1-A output
    • 93% Boost efficiency at 5 V at 1 A output
  • Integrated control to switch between charge and Boost Mode
  • Single input to support USB input and adjustable high voltage adapters
    • Support 3.9-V to 14-V input voltage range
    • Input current limit (100 mA to 3.25 A with 50-mA resolution) to support USB2.0, USB3.0 standard and high voltage adapters
    • Maximum power tracking by input voltage limit up-to 14V for wide range of adapters
    • Auto detect USB SDP, CDP, DCP, and Non-standard Adapters
  • Input current optimizer (ICO) to maximize input power without overloading adapters
  • Resistance compensation (IRCOMP) from charger output to cell terminal
  • Highest battery discharge efficiency with 11-mΩ battery discharge MOSFET up to 9 A
  • Integrated ADC for system monitor (voltage, temperature, charge current)
  • Narrow VDC (NVDC) power path management
    • Instant-on works with no battery or deeply discharged battery
    • Ideal diode operation in Battery Supplement Mode
  • BATFET Control to support Ship Mode, wake up, and full system reset
  • Flexible autonomous and I2C Mode for optimal system performance
  • High integration includes all MOSFETs, current sensing and loop compensation
  • 12-µA Low battery leakage current to support Ship Mode
  • High accuracy
    • ±0.5% Charge voltage regulation
    • ±5% Charge current regulation
    • ±7.5% Input current regulation
  • Safety
    • Battery temperature sensing for charge and Boost Mode
    • Thermal regulation and thermal shutdown

The BQ25895 is a highly-integrated 5-A switch-mode battery charge management and system power path management device for single cell Li-Ion and Li-polymer battery. The devices support high input voltage fast charging. The low impedance power path optimizes switch-mode operation efficiency, reduces battery charging time and extends battery life during discharging phase.

The BQ25895 is a highly-integrated 5-A switch-mode battery charge management and system power path management device for single cell Li-Ion and Li-polymer battery. The devices support high input voltage fast charging. The low impedance power path optimizes switch-mode operation efficiency, reduces battery charging time and extends battery life during discharging phase.
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Documentación técnica

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* Data sheet BQ25895 I2C Controlled Single Cell 5-A Fast Charger with MaxChargeTM for High Input Voltage and Adjustable Voltage 3.1-A Boost Operation datasheet (Rev. C) PDF | HTML 13 oct 2022
Application note Selection of Single-Cell Buck Narrow VDC Switching Battery Chargers PDF | HTML 10 nov 2022
Application note State of Charge Estimation Using Smart Battery Charger PDF | HTML 11 oct 2021
Technical article How to choose the right battery-charger IC for ultrasound point-of-care products PDF | HTML 24 mar 2021
Application note USB D+/D- Input Current Limit Detection PDF | HTML 30 dic 2020
Application note Extracting Maximum Power from an Adapter with Input Current Optimization Feature (Rev. C) 02 ago 2019
Technical article Battery-charging tips for video doorbell applications PDF | HTML 15 abr 2019
Technical article Optimizing solar power with battery chargers PDF | HTML 23 may 2018
Application note Dynamic Power-Path Mgmt & Dynamic Power Mgmt (Rev. A) 01 may 2018
Application note Battery Charger Overload Protection in Boost Mode Operation 12 jul 2017
Technical article Use Solar-Powered Chargers to Extend Battery Life in Shared Bike Locks PDF | HTML 26 jun 2017
Application note Port Detection for Power Banks 08 abr 2016
EVM User's guide bq25890/892/895/895M EVM (PWR664) User's Guide (Rev. B) PDF | HTML 24 nov 2015
Application note Using the bq2589x ADC to Estimate Battery Temperature 04 may 2015
Analog Design Journal Extract maximum power from the supply when charging a battery 11 abr 2014
Analog Design Journal Dynamic power management for faster, more efficient battery charging 28 oct 2013

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

BQ25895EVM-664 — Módulo de evaluación de cargador completo BQ25895

The bq25895 evaluation module (EVM) is a complete charger module for evaluating the highly-integrated switch-mode battery charge management and system power path management device for 1 cell Li-Ion and Li-polymer battery in a wide range of smartphone and tablet applications.

The BQ25895EVM-664 (...)

Guía del usuario: PDF | HTML
No disponible en TI.com
Software de aplicación y estructura

BQSTUDIO — Software Battery Management Studio (bqStudio)

Battery Management Studio (bqStudio) ofrece un conjunto completo de herramientas robustas para ayudar con el proceso de evaluación, diseño, configuración, prueba o utilización de productos de gestión de baterías de TI. Esto incluye funciones que (...)
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Controlador o biblioteca

BQ25890SW-LINUX — Controlador Linux para BQ25890

The Linux driver supports the BQ25890 5-A fast charger. The Linux driver supports communication through the I2C bus and interfaces with the power supply sub-system.

 

Linux mainline status

Available in Linux mainline: Yes
Available through git.ti.com: N/A

Linux source Files

The files associated with this (...)

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Modelo de simulación

bq2589x Calculation Tools (Rev. A)

SLURAX7A.ZIP (305 KB) - Power Model
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Diseños de referencia

TIDA-01556 — Diseño de referencia de algoritmo de seguimiento de punto de potencia máxima para carga de batería s

This reference design is a software implementation of a basic maximum power point tracking algorithm for a single-cell battery charging system using a solar panel input. This design removes the requirement for extra circuitry and complex firmware by using integrated features of the charger to (...)
Design guide: PDF
Esquema: PDF
Diseños de referencia

TIDA-01182 — Diseño de referencia de amplificador de audio portátil con control de audio automático 1S1P BMS

High performance, 10Watt (5W per speaker) portable audio amplifier that includes everything you need to implement a BMS (Battery Management Solution) for a portable audio amplifier (including a Charger, Fuel (Gas) Gauge and Protection for a 1S1P 18650 2400mAh Lithium battery) for a Class D Audio (...)
Design guide: PDF
Esquema: PDF
Diseños de referencia

PMP4451 — Diseño de referencia de banco de alimentación USB-C DFP + USB-A con cargador rápido de entrada y sal

This is a power bank reference design with a USB type C DFP plus a USB type A port supporting high voltage discharging. Fast charger input is also supported to save more charging time. It can detect the input port attach/detach automatically, as well as the output ports.
Test report: PDF
Esquema: PDF
Diseños de referencia

PMP4496 — Diseño de referencia de banco de alimentación DRP USB-C con entrada de cargador rápido

PMP4496 is a power bank reference design with a single USB type C dual role port (DRP). It can perform as a SINK or SOURCE. Role is automatically determined according to the external device attached. Fast charger input is also supported to save more charging time.
Test report: PDF
Esquema: PDF
Diseños de referencia

PMP11536 — Diseño de referencia de banco de energía USB C DFP + 5V2A con cargador rápido de entrada

PMP11536 is a power bank reference design with a USB typc C DFP plus a USB type A port employing the boost mode of a Maxcharger. Fast charger input is also supported to save more charging time. It can detect the input port attach/detach events automatically, as well as the output ports.
Test report: PDF
Esquema: PDF
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
WQFN (RTW) 24 Ultra Librarian
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Pedidos y calidad

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  • 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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