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BQ25892

ACTIVE

I2C 1cell 5A buck battery charger with NVDC Power Path and PSEL

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Data sheet

BQ25892

ACTIVE
Data sheet Order now

Product details

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 (JEITA profile), BAT temp thermistor monitoring (hot/cold profile), IC thermal regulation, ICO (Input Current Optimization), IINDPM (Input current limit), Input OVP, Integrated ADC, Power Path, 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 (JEITA profile), BAT temp thermistor monitoring (hot/cold profile), IC thermal regulation, ICO (Input Current Optimization), IINDPM (Input current limit), Input OVP, Integrated ADC, Power Path, 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
  • USB On-the-Go (OTG) with adjustable output from 4.5 V to 5.5 V
    • Selectable 500-kHz and 1.5-MHz Boost Converter with up-to 2.4-A output
    • 93% Boost efficiency at 5 V at 1-A output
    • Accurate Hiccup Mode overcurent protection
  • 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 14 V for wide range of adapters
    • Auto detect USB SDP, CDP, DCP, and non-standard adapters (BQ25890)
  • 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
  • USB On-the-Go (OTG) with adjustable output from 4.5 V to 5.5 V
    • Selectable 500-kHz and 1.5-MHz Boost Converter with up-to 2.4-A output
    • 93% Boost efficiency at 5 V at 1-A output
    • Accurate Hiccup Mode overcurent protection
  • 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 14 V for wide range of adapters
    • Auto detect USB SDP, CDP, DCP, and non-standard adapters (BQ25890)
  • 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 BQ25890, BQ25892 are 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 BQ25890, BQ25892 are 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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Technical documentation

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Type Title Date
* Data sheet BQ25890/2 I2C Controlled Single Cell 5-A Fast Charger with MaxChargeTM Technology for High Input Voltage and Adjustable Voltage USB On-the-Go Boost Mode datasheet (Rev. D) PDF | HTML 12 Oct 2022
Application note Selection of Single-Cell Buck Narrow VDC Switching Battery Chargers PDF | HTML 10 Nov 2022
Technical article How to choose the right battery-charger IC for ultrasound point-of-care products PDF | HTML 24 Mar 2021
Application note Extracting Maximum Power from an Adapter with Input Current Optimization Feature (Rev. C) 02 Aug 2019
Application note Battery Charger Overload Protection in Boost Mode Operation 12 Jul 2017
EVM User's guide bq25890/892/895/895M EVM (PWR664) User's Guide (Rev. B) PDF | HTML 24 Nov 2015
Analog Design Journal 4Q 2015 Analog Applications Journal 30 Oct 2015
Analog Design Journal Faster, cooler charging with dual chargers 30 Oct 2015
EVM User's guide bq25890, bq25892 Dual Cascade Charger EVM (PWR692) (Rev. A) 10 Jun 2015
Application note Using the bq2589x ADC to Estimate Battery Temperature 04 May 2015
Analog Design Journal Dynamic power management for faster, more efficient battery charging 28 Oct 2013

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

BQ25892EVM-664 — BQ25892 Complete Charger Evaluation Module

The bq25892 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 BQ25892EVM-664 (...)

User guide: PDF | HTML
Not available on TI.com
Application software & framework

BQSTUDIO — Battery Management Studio (bqStudio) Software

Battery Management Studio (bqStudio) offers a full suite of robust tools to assist with the process of evaluating, designing with, configuring, testing, or otherwise utilizing TI Battery management products. This includes features that provide full access to registers and data memory including (...)
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Driver or library

BQ25890SW-LINUX — Linux Driver for 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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Simulation model

bq2589x Calculation Tools (Rev. A)

SLURAX7A.ZIP (305 KB) - Power Model
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Reference designs

TIDA-00538 — 1S 5A Fast Charger with MaxCharge™ Technology for High VIN and Adjustable USB OTG Boost

The bq25892 is a highly-integrated switch-mode battery charge management and system power path management device for single cell Li-Ion and Li-polymer battery in a wide range of smartphone and other portable devices with USB or high voltage adaptors. Its low impedance power path optimizes (...)
Test report: PDF
Schematic: PDF
Reference designs

TIDA-00590 — Dual Battery Charger IC Reference Design (connected in Cascode Configuration)

Higher capacity 1S batteries in the latest smartphones and tablets need higher charge currents to charge faster.  With 12-V power sources, two 5-A battery charger ICs connected in cascode, parallel configuration can provide more than 5-A charging current.  In addition, the heat from the (...)
Schematic: PDF
Package Pins CAD symbols, footprints & 3D models
WQFN (RTW) 24 Ultra Librarian
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