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Batterielader-ICs

BQ25895

AKTIV

I2C 1cell 5A Abwärts-Batterielader mit hoher Eingangsspannung und 3.1-A Boost mit HVDCP aktiviert

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Datenblatt

BQ25895

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

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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Technische Dokumentation

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Typ Titel Datum
* 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 Okt 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 Okt 2021
Technical article How to choose the right battery-charger IC for ultrasound point-of-care products PDF | HTML 24 Mär 2021
Application note USB D+/D- Input Current Limit Detection PDF | HTML 30 Dez 2020
Application note Extracting Maximum Power from an Adapter with Input Current Optimization Feature (Rev. C) 02 Aug 2019
Technical article Battery-charging tips for video doorbell applications PDF | HTML 15 Apr 2019
Technical article Optimizing solar power with battery chargers PDF | HTML 23 Mai 2018
Application note Dynamic Power-Path Mgmt & Dynamic Power Mgmt (Rev. A) 01 Mai 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 Apr 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 Mai 2015
Analog Design Journal Extract maximum power from the supply when charging a battery 11 Apr 2014
Analog Design Journal Dynamic power management for faster, more efficient battery charging 28 Okt 2013

Design und Entwicklung

Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.

Evaluierungsplatine

BQ25895EVM-664 — BQ25895 Komplettes Ladegerät – Evaluierungsmodul

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 (...)

Benutzerhandbuch: PDF | HTML
Nicht verfügbar auf TI.com
Anwendungssoftware und Frameworks

BQSTUDIO — Software „Battery Management Studio“ (bqStudio)

Battery Management Studio (bqStudio) bietet eine vollständige Suite robuster Tools, die Sie bei der Evaluierung, dem Design, der Konfiguration, dem Test oder der anderweitigen Nutzung von TI-Produkten für das Batteriemanagement unterstützen. Dazu gehören Funktionen, die den (...)
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Treiber oder Bibliothek

BQ25890SW-LINUX — Linux-Treiber für 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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Simulationsmodell

bq2589x Calculation Tools (Rev. A)

SLURAX7A.ZIP (305 KB) - Power Model
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Referenzdesigns

TIDA-01556 — Referenzdesign mit Algorithmus für maximales Power-Point-Tracking für Solar-Akkulader im Kleinleistu

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
Schaltplan: PDF
Referenzdesigns

TIDA-01182 — Referenzdesign für tragbare Audioverstärker mit automatischer Audiosteuerung 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
Schaltplan: PDF
Referenzdesigns

PMP4451 — USB-C DFP+ USB-A-Ladegeräte mit Eingangs- und Ausgangs-Schnellladegerät – Referenzdesign

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
Schaltplan: PDF
Referenzdesigns

PMP4496 — Referenzdesign für USB-C-DRP-Ladegerät mit Schnellladeeingang

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
Schaltplan: PDF
Referenzdesigns

PMP11536 — Referenzdesign für Powerbank mit USB-C DFP + 5 V bei 2 A mit Schnellladeeingang

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
Schaltplan: PDF
Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
WQFN (RTW) 24 Ultra Librarian
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Bestellen & Qualität

Beinhaltete Information:
  • RoHS
  • REACH
  • Bausteinkennzeichnung
  • Blei-Finish/Ball-Material
  • MSL-Rating / Spitzenrückfluss
  • MTBF-/FIT-Schätzungen
  • Materialinhalt
  • Qualifikationszusammenfassung
  • Kontinuierliches Zuverlässigkeitsmonitoring
Beinhaltete Information:
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  • Montagestandort

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Support und Schulungen

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