Home Battery management ICs Battery charger ICs
Home
Battery management ICs
Battery charger ICs

BQ24140

ACTIVE

1.5-A Dual input Switchmode charger with USB-OTG Support

Order now
Data sheet

BQ24140

ACTIVE
Data sheet Order now

Product details

Number of series cells 1 Charge current (max) (A) 1.5 Vin (max) (V) 9 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (min) (V) 3.5 Battery charge voltage (max) (V) 4.44 Absolute max Vin (max) (V) 20 Control topology Switch-Mode Buck Control interface I2C Features BAT temp thermistor monitoring (hot/cold profile), Input OVP, USB OTG integrated, VINDPM (Input voltage threshold to maximize adaptor power) Vin (min) (V) 4 Rating Catalog Operating temperature range (°C) -40 to 85
Number of series cells 1 Charge current (max) (A) 1.5 Vin (max) (V) 9 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (min) (V) 3.5 Battery charge voltage (max) (V) 4.44 Absolute max Vin (max) (V) 20 Control topology Switch-Mode Buck Control interface I2C Features BAT temp thermistor monitoring (hot/cold profile), Input OVP, USB OTG integrated, VINDPM (Input voltage threshold to maximize adaptor power) Vin (min) (V) 4 Rating Catalog Operating temperature range (°C) -40 to 85
DSBGA (YFF) 30 5.71999999999999912 mm² 2.2 x 2.5999999999999996
  • High-Efficiency Mini-USB/AC Battery Charger for
    Single-Cell Li-Ion and Li-Polymer Battery Packs
  • Charge Battery and Provide USB-OTG Support at the Same Time
  • High-Accuracy Voltage and Current Regulation
    • Input Current Regulation Accuracy: ±5% (100mA, 500mA)
    • Charge Voltage Regulation Accuracy: ±0.5% (25°C), ±1% (0-125°C)
    • Charge Current Regulation Accuracy: ±5%
  • Boost Mode Operation for USB OTG:
    • Input Voltage Range (from Battery): 2.3V to 4.5V
    • Output for VBUS: 5.05V/500 mA
  • Input Voltage Based Dynamic Power Management Provides
    Protection Against Current Limited Adapters
  • Bad Adaptor Detection and Rejection
  • Safety Limit Register for Added Security by Limiting
    Maximum Charge Voltage and Maximum Charge Current
  • 20-V Absolute Maximum Input Voltage Rating
  • 9.0-V Maximum Operating Input Voltage
  • Charge Faster than Linear Chargers
  • Built-in Input Current Sensing and Limiting
  • Integrated Power FETs for up to 1.5-A Charge Rate
  • Programmable Charge Parameters Through I2C Interface
    (up to 3.4 Mbps):
    • Input Current
    • Fast-Charge/Termination Current
    • Charge Voltage (3.5-4.44V)
    • Safety Timer with Reset Control
    • Safety Timer with Reset Control
    • Termination Enable
  • Synchronous Fixed-Frequency PWM Controller Operating at 3 MHz
    With 0% to 99.5% Duty Cycle
  • Automatic High Impedance Mode for Low Power Consumption
  • Robust Protection
    • Reverse Leakage Protection Prevents Battery Drainage
    • Thermal Regulation and Protection
    • Input/Output Over Voltage Protection
  • Status Output for Charging and Faults
  • USB Friendly Boot-Up Sequence
  • 2.35 × 2.65 mm 30-pin WCSP Package
  • High-Efficiency Mini-USB/AC Battery Charger for
    Single-Cell Li-Ion and Li-Polymer Battery Packs
  • Charge Battery and Provide USB-OTG Support at the Same Time
  • High-Accuracy Voltage and Current Regulation
    • Input Current Regulation Accuracy: ±5% (100mA, 500mA)
    • Charge Voltage Regulation Accuracy: ±0.5% (25°C), ±1% (0-125°C)
    • Charge Current Regulation Accuracy: ±5%
  • Boost Mode Operation for USB OTG:
    • Input Voltage Range (from Battery): 2.3V to 4.5V
    • Output for VBUS: 5.05V/500 mA
  • Input Voltage Based Dynamic Power Management Provides
    Protection Against Current Limited Adapters
  • Bad Adaptor Detection and Rejection
  • Safety Limit Register for Added Security by Limiting
    Maximum Charge Voltage and Maximum Charge Current
  • 20-V Absolute Maximum Input Voltage Rating
  • 9.0-V Maximum Operating Input Voltage
  • Charge Faster than Linear Chargers
  • Built-in Input Current Sensing and Limiting
  • Integrated Power FETs for up to 1.5-A Charge Rate
  • Programmable Charge Parameters Through I2C Interface
    (up to 3.4 Mbps):
    • Input Current
    • Fast-Charge/Termination Current
    • Charge Voltage (3.5-4.44V)
    • Safety Timer with Reset Control
    • Safety Timer with Reset Control
    • Termination Enable
  • Synchronous Fixed-Frequency PWM Controller Operating at 3 MHz
    With 0% to 99.5% Duty Cycle
  • Automatic High Impedance Mode for Low Power Consumption
  • Robust Protection
    • Reverse Leakage Protection Prevents Battery Drainage
    • Thermal Regulation and Protection
    • Input/Output Over Voltage Protection
  • Status Output for Charging and Faults
  • USB Friendly Boot-Up Sequence
  • 2.35 × 2.65 mm 30-pin WCSP Package

The bq24140 is a compact, flexible, high-efficiency, USB-friendly switch-mode charge management device for single-cell Li-ion and Li-polymer batteries used in a wide range of portable applications. The charge parameters can be programmed through an I2C interface. The IC integrates two synchronous PWM chargers, power MOSFETs, input current sensing, high-accuracy current and voltage regulation, and charge termination, into a small WCSP package.

The IC charges the battery in three phases: conditioning, constant current and constant voltage. The input current is automatically limited to the value set by the host. Charge is terminated based on user-selectable minimum current level. A safety timer with reset control provides a safety backup for I2C interface. During normal operation, the IC automatically restarts the charge cycle if the battery voltage falls below an internal threshold and automatically enters sleep mode or high impedance mode when the input supply is removed. The charge status can be reported to the host using the I2C interface. During the charging process, the IC monitors its junction temperature (TJ) and reduces the charge current once TJ increases to 125°C typical. To support USB OTG device, the IC can provide VBUS (5.05V typical) by boosting the battery voltage. The IC is available in 30-pin WCSP package.

The bq24140 is a compact, flexible, high-efficiency, USB-friendly switch-mode charge management device for single-cell Li-ion and Li-polymer batteries used in a wide range of portable applications. The charge parameters can be programmed through an I2C interface. The IC integrates two synchronous PWM chargers, power MOSFETs, input current sensing, high-accuracy current and voltage regulation, and charge termination, into a small WCSP package.

The IC charges the battery in three phases: conditioning, constant current and constant voltage. The input current is automatically limited to the value set by the host. Charge is terminated based on user-selectable minimum current level. A safety timer with reset control provides a safety backup for I2C interface. During normal operation, the IC automatically restarts the charge cycle if the battery voltage falls below an internal threshold and automatically enters sleep mode or high impedance mode when the input supply is removed. The charge status can be reported to the host using the I2C interface. During the charging process, the IC monitors its junction temperature (TJ) and reduces the charge current once TJ increases to 125°C typical. To support USB OTG device, the IC can provide VBUS (5.05V typical) by boosting the battery voltage. The IC is available in 30-pin WCSP package.
open-in-new Find other Battery charger ICs
Download View video with transcript Video

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 2
Type Title Date
* Data sheet 1.5A Dual Input Switchmode Charger with USB-OTG Support datasheet 05 Aug 2011
Application note BQ241xx/BQ246xx Selection of Multi-Cell Standalone Switching Battery Chargers 31 Dec 2019

Design & development

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

Evaluation board

BQ24140EVM-003 — Evaluation Module for BQ24140, 1.5A Dual Input Switchmode Charger with USB-OTG Support

The bq24140EVM-003 evaluation module is a complete charger module for evaluating compact, flexible, high-efficiency, USB-friendly, switch-mode charge management and USB-OTG solution for single-cell Li-ion and Li-polymer batteries used in a wide range of portable applications. The bq24140 evaluation (...)

Not available on TI.com
Support software

SLUC266 — bq24140EVM software

Supported products & hardware

Supported products & hardware

Products
Battery charger ICs
BQ24140 — 1.5-A Dual input Switchmode charger with USB-OTG Support
Hardware development
Evaluation board
BQ24140EVM-003 — Evaluation Module for BQ24140, 1.5A Dual Input Switchmode Charger with USB-OTG Support
Download
Gerber file

bq24140EVM-003 gerbers

SLUC296.ZIP (336 KB)
Download
Package Pins Download
DSBGA (YFF) 30 View options
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos