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BQ24196

ACTIVE

I2C controlled 2.5A single cell USB/Adaptor charger w/ Narrow VDC Power Path

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Data sheet

BQ24196

ACTIVE
Data sheet Order now

Product details

Number of series cells 1 Charge current (max) (A) 2.5 Vin (max) (V) 17 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (min) (V) 3.5 Battery charge voltage (max) (V) 4.4 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, IINDPM (Input current limit), Input OVP, 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) 2.5 Vin (max) (V) 17 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (min) (V) 3.5 Battery charge voltage (max) (V) 4.4 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, IINDPM (Input current limit), Input OVP, Power Path, USB OTG integrated Vin (min) (V) 3.9 Rating Catalog Operating temperature range (°C) -40 to 85
VQFN (RGE) 24 16 mm² 4 x 4
  • High Efficiency 2.5-A Switch Mode Charger
    • 92% Charge Efficiency at 2 A
  • Highest Battery Discharge Efficiency with 12-mΩ
    Battery Discharge MOSFET up to 9-A Discharge Current
  • Single Input USB-compliant/Adapter Charger
    • Input Voltage and Current Limit Supports USB2.0
      and USB3.0
    • Input Current Limit: 100 mA, 150 mA, 500 mA, 900 mA,
      1.2 A, 1.5 A, 2 A and 3 A
  • 3.9-V to 17-V Input Operating Voltage Range
    • Support All Kinds of Adapter with Input Voltage DPM
      Regulation
  • USB OTG 5 V at 1.3-A Synchronous Boost Converter
    Operation
    • 93% 5-V Boost Efficiency at 1 A
  • Narrow VDC (NVDC) Power Path Management
    • Instant-on Works with No Battery or Deeply Discharged
      Battery
    • Ideal Diode Operation in Battery Supplement Mode
  • 1.5-MHz Switching Frequency for Low Profile Inductor
  • Autonomous Battery Charging with or without Host
    Management
    • Battery Charge Enable
    • Battery Charge Preconditioning
    • Charge Termination and Recharge
  • High Accuracy (0°C to 125°C)
    • ±0.5% Charge Voltage Regulation
    • ±7% Charge Current Regulation
    • ±7.5% Input Current Regulation
    • ±2% Output Regulation in Boost Mode
  • High Integration
    • Power Path Management
    • Synchronous Switching MOSFETs
    • Integrated Current Sensing
    • Bootstrap Diode
    • Internal Loop Compensation
  • Safety
    • Battery Temperature Sensing and Charging Safety Timer
    • Thermal Regulation and Thermal Shutdown
    • Input System Over-Voltage Protection
    • MOSFET Over-Current Protection
  • Charge Status Outputs for LED or Host Processor
  • Low Battery Leakage Current and Support Shipping Mode
  • 4.00 mm × 4.00 mm VQFN-24 Package
  • High Efficiency 2.5-A Switch Mode Charger
    • 92% Charge Efficiency at 2 A
  • Highest Battery Discharge Efficiency with 12-mΩ
    Battery Discharge MOSFET up to 9-A Discharge Current
  • Single Input USB-compliant/Adapter Charger
    • Input Voltage and Current Limit Supports USB2.0
      and USB3.0
    • Input Current Limit: 100 mA, 150 mA, 500 mA, 900 mA,
      1.2 A, 1.5 A, 2 A and 3 A
  • 3.9-V to 17-V Input Operating Voltage Range
    • Support All Kinds of Adapter with Input Voltage DPM
      Regulation
  • USB OTG 5 V at 1.3-A Synchronous Boost Converter
    Operation
    • 93% 5-V Boost Efficiency at 1 A
  • Narrow VDC (NVDC) Power Path Management
    • Instant-on Works with No Battery or Deeply Discharged
      Battery
    • Ideal Diode Operation in Battery Supplement Mode
  • 1.5-MHz Switching Frequency for Low Profile Inductor
  • Autonomous Battery Charging with or without Host
    Management
    • Battery Charge Enable
    • Battery Charge Preconditioning
    • Charge Termination and Recharge
  • High Accuracy (0°C to 125°C)
    • ±0.5% Charge Voltage Regulation
    • ±7% Charge Current Regulation
    • ±7.5% Input Current Regulation
    • ±2% Output Regulation in Boost Mode
  • High Integration
    • Power Path Management
    • Synchronous Switching MOSFETs
    • Integrated Current Sensing
    • Bootstrap Diode
    • Internal Loop Compensation
  • Safety
    • Battery Temperature Sensing and Charging Safety Timer
    • Thermal Regulation and Thermal Shutdown
    • Input System Over-Voltage Protection
    • MOSFET Over-Current Protection
  • Charge Status Outputs for LED or Host Processor
  • Low Battery Leakage Current and Support Shipping Mode
  • 4.00 mm × 4.00 mm VQFN-24 Package

The bq24196 is highly-integrated switch-mode battery charge management and system power path management devices for single cell Li-Ion and Li-polymer battery in a wide range of tablet and other portable devices.

Its low impedance power path optimizes switch-mode operation efficiency, reduces battery charging time and extends battery life during discharging phase. The I2C serial interface with charging and system settings makes the device a truly flexible solution.

The device supports a wide range of input sources, including standard USB host port, USB charging port and high power DC adapter. The bq24196 takes the result from detection circuit in the system, such as USB PHY device. The bq24196 is compliant with USB 2.0 and USB 3.0 power spec with input current and voltage regulation. Meanwhile, the bq24196 meets USB On-the-Go operation power rating specification by supplying 5 V on VBUS with current limit up to 1.3 A.

The power path management regulates the system slightly above battery voltage but does not drop below 3.5-V minimum system voltage (programmable). With this feature, the system maintains operation even when the battery is completely depleted or removed. When the input current limit or voltage limit is reached, the power path management automatically reduces the charge current to zero. As the system load continues to increase, the power path discharges the battery until the system power requirement is met. This supplement mode operation prevents overloading the input source.

The device initiates and completes a charging cycle without software control. It automatically detects the battery voltage and charges the battery in three phases: pre-conditioning, constant current and constant voltage. At the end of the charging cycle, the charger automatically terminates when the charge current is below a preset limit in the constant voltage phase. When the full battery falls below the recharge threshold, the charger will automatically start another charging cycle.

The device provides various safety features for battery charging and system operation, including negative thermistor monitoring, charging safety timer and over-voltage/over-current protections. The thermal regulation reduces charge current when the junction temperature exceeds 120°C (programmable).

The STAT output reports the charging status and any fault conditions. The PG output in the bq24196 indicates if a good power source is present. The INT immediately notifies the host when a fault occurs.

The bq24196 is available in a 24-pin, 4.00 × 4.00 mm2 thin VQFN package.

The bq24196 is highly-integrated switch-mode battery charge management and system power path management devices for single cell Li-Ion and Li-polymer battery in a wide range of tablet and other portable devices.

Its low impedance power path optimizes switch-mode operation efficiency, reduces battery charging time and extends battery life during discharging phase. The I2C serial interface with charging and system settings makes the device a truly flexible solution.

The device supports a wide range of input sources, including standard USB host port, USB charging port and high power DC adapter. The bq24196 takes the result from detection circuit in the system, such as USB PHY device. The bq24196 is compliant with USB 2.0 and USB 3.0 power spec with input current and voltage regulation. Meanwhile, the bq24196 meets USB On-the-Go operation power rating specification by supplying 5 V on VBUS with current limit up to 1.3 A.

The power path management regulates the system slightly above battery voltage but does not drop below 3.5-V minimum system voltage (programmable). With this feature, the system maintains operation even when the battery is completely depleted or removed. When the input current limit or voltage limit is reached, the power path management automatically reduces the charge current to zero. As the system load continues to increase, the power path discharges the battery until the system power requirement is met. This supplement mode operation prevents overloading the input source.

The device initiates and completes a charging cycle without software control. It automatically detects the battery voltage and charges the battery in three phases: pre-conditioning, constant current and constant voltage. At the end of the charging cycle, the charger automatically terminates when the charge current is below a preset limit in the constant voltage phase. When the full battery falls below the recharge threshold, the charger will automatically start another charging cycle.

The device provides various safety features for battery charging and system operation, including negative thermistor monitoring, charging safety timer and over-voltage/over-current protections. The thermal regulation reduces charge current when the junction temperature exceeds 120°C (programmable).

The STAT output reports the charging status and any fault conditions. The PG output in the bq24196 indicates if a good power source is present. The INT immediately notifies the host when a fault occurs.

The bq24196 is available in a 24-pin, 4.00 × 4.00 mm2 thin VQFN package.
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Technical documentation

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Type Title Date
* Data sheet bq24196 I2C Controlled 2.5-A Single Cell USB/Adapter Charger with Narrow VDC Power Path Management and USB OTG datasheet (Rev. A) PDF | HTML 30 Dec 2014
Application note Selection of Single-Cell Buck Narrow VDC Switching Battery Chargers PDF | HTML 10 Nov 2022
Design guide bq24190 Calculation Tool 19 Aug 2015
User guide bq24190/2/2i/3/6 and bq24292i EVM (PWR021) (Rev. C) 28 Aug 2013

Design & development

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

Evaluation board

BQ2419XEVM — BQ2419X I2C Controlled 4.5A Single Cell USB / Adaptor Charger Evaluation Module

The bq2419x evaluation module (EVM) is a complete charger module for evaluating an I2C-controlled single NVDC-1 charge using the bq2419x devices.

The BQ2419xEVM-021 requires USB Interface Adaptive Evaluation Module “USB-TO-GPIO” for I2C interface. If one is not already available to you (...)

User guide: PDF
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Application software & framework

TI-CHARGER-GUI — GUI software for use with USB2ANY & battery charging evaluation modules

The TI-CHARGER-GUI offers a web-based or standalone graphical user interface to assist in the process of evaluating, designing with, configuring or testing battery charger products. The software provides full access to registers and an easy interface to send and sequence commands.
Evaluate in the cloud
Driver or library

BQ24190SW-LINUX — Linux Driver for BQ24190

The Linux driver supports the BQ24190 I2C controlled 4.5-A single cell 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 (...)

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GUI for evaluation module (EVM)

SLUC391 — bq2419x GUI

Supported products & hardware

Supported products & hardware

Products
Battery charger ICs
BQ24190 — I2C controlled 4.5A single cell USB / Adaptor charger BQ24192 — 1-cell, 4.5-A, I2C controlled buck battery charger with NVDC Power Path & default pre charge current BQ24192I — 1-cell, 4.5-A, I2C controlled buck battery charger with NVDC Power Path BQ24193 — I2C controlled 4.5A single cell USB/Adaptor charger w/ Narrow VDC Power Path and JEITA BQ24195 — I2C controlled 4.5A single cell charger with 5.1V, 2.1-A Synchronous boost Operation BQ24195L — I2C controlled 2.5A single cell charger with 5.1V, 1-A Synchronous boost Operation BQ24196 — I2C controlled 2.5A single cell USB/Adaptor charger w/ Narrow VDC Power Path
Hardware development
Evaluation board
BQ2419XEVM — BQ2419X I2C Controlled 4.5A Single Cell USB / Adaptor Charger Evaluation Module
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Package Pins CAD symbols, footprints & 3D models
VQFN (RGE) 24 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

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