BQ25895

ACTIVO

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

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
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 (...)
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 (...)

Modelo de simulación

bq2589x Calculation Tools (Rev. A)

SLURAX7A.ZIP (305 KB) - Power Model
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TIDA-01556 — Diseño de referencia de algoritmo de seguimiento de punto de potencia máxima para carga de batería s

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Design guide: PDF
Esquema: PDF
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TIDA-01182 — Diseño de referencia de amplificador de audio portátil con control de audio automático 1S1P BMS

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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
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WQFN (RTW) 24 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

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Soporte y capacitación

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