Home Power management Battery management ICs Battery charger ICs

BQ24012

ACTIVE

1-cell, 1-A, linear Li-ion battery charger w/ FET, AC present & charge enable in QFN-12

A newer version of this product is available

open-in-new Compare alternates
Same functionality with different pin-out to the compared device
BQ25170 ACTIVE 800-mA linear battery charger for 1-cell Li-ion and LiFePO4 Supports multiple resistor programmable battery voltage with lower IQ

Product details

Number of series cells 1 Charge current (max) (A) 1 Vin (max) (V) 16.5 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (min) (V) 4.2 Battery charge voltage (max) (V) 4.2 Absolute max Vin (max) (V) 18 Control topology Linear Control interface Standalone (RC-Settable) Features BAT temp thermistor monitoring (hot/cold profile) Vin (min) (V) 3 Rating Catalog Operating temperature range (°C) -40 to 85
Number of series cells 1 Charge current (max) (A) 1 Vin (max) (V) 16.5 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (min) (V) 4.2 Battery charge voltage (max) (V) 4.2 Absolute max Vin (max) (V) 18 Control topology Linear Control interface Standalone (RC-Settable) Features BAT temp thermistor monitoring (hot/cold profile) Vin (min) (V) 3 Rating Catalog Operating temperature range (°C) -40 to 85
VSON (DRC) 10 9 mm² 3 x 3
  • Small 3-mm × 3-mm MLP (QFN) Package
  • Ideal for Low-Dropout Designs for Single-Cell Li-Ion
    or Li-Pol Packs in Space Limited Applications
  • Integrated Power FET and Current Sensor for Up to 1-A
    Charge Applications
  • Reverse Leakage Protection Prevents Battery Drainage
  • Integrated Current and Voltage Regulation
  • ±0.5% Voltage Regulation Accuracy
  • Charge Termination by Minimum Current and Time
  • Pre-Charge Conditioning With Safety Timer
  • Status Outputs for LED or System Interface Indicates
    Charge and Fault Conditions
  • Battery Insertion and Removal Detection
  • Works With Regulated and Unregulated Supplies
  • Short-Circuit Protection
  • Charge Voltage Options: 4.2 V and 4.36 V
  • Small 3-mm × 3-mm MLP (QFN) Package
  • Ideal for Low-Dropout Designs for Single-Cell Li-Ion
    or Li-Pol Packs in Space Limited Applications
  • Integrated Power FET and Current Sensor for Up to 1-A
    Charge Applications
  • Reverse Leakage Protection Prevents Battery Drainage
  • Integrated Current and Voltage Regulation
  • ±0.5% Voltage Regulation Accuracy
  • Charge Termination by Minimum Current and Time
  • Pre-Charge Conditioning With Safety Timer
  • Status Outputs for LED or System Interface Indicates
    Charge and Fault Conditions
  • Battery Insertion and Removal Detection
  • Works With Regulated and Unregulated Supplies
  • Short-Circuit Protection
  • Charge Voltage Options: 4.2 V and 4.36 V

The bqTINY™ series are highly integrated Li-Ion and Li-Pol linear charge management devices targeted at space limited portable applications. The bqTINY™ series offer integrated powerFET and current sensor, reverse blocking protection, high accuracy current and voltage regulation, charge status, and charge termination, in a small package.

The bqTINY™ charges the battery in three phases: conditioning, constant current, and constant voltage. Charge is terminated based on minimum current. An internal charge timer provides a backup safety feature for charge termination. The bqTINY™ automatically restarts the charge if the battery voltage falls below an internal threshold. The bqTINY™ automatically enters sleep mode when VCC supply is removed.

In addition to the standard features, different versions of the bqTINY™ offer a multitude of additional features. These include temperature sensing input for detecting hot or cold battery packs; power good (PG) output indicating the presence of valid input power; a TTL-level charge-enable input (CE) used to disable or enable the charge process; and a TTL-level timer and termination enable (TTE) input used to disable or enable the fast-charge timer and charge termination.

The bqTINY™ series are highly integrated Li-Ion and Li-Pol linear charge management devices targeted at space limited portable applications. The bqTINY™ series offer integrated powerFET and current sensor, reverse blocking protection, high accuracy current and voltage regulation, charge status, and charge termination, in a small package.

The bqTINY™ charges the battery in three phases: conditioning, constant current, and constant voltage. Charge is terminated based on minimum current. An internal charge timer provides a backup safety feature for charge termination. The bqTINY™ automatically restarts the charge if the battery voltage falls below an internal threshold. The bqTINY™ automatically enters sleep mode when VCC supply is removed.

In addition to the standard features, different versions of the bqTINY™ offer a multitude of additional features. These include temperature sensing input for detecting hot or cold battery packs; power good (PG) output indicating the presence of valid input power; a TTL-level charge-enable input (CE) used to disable or enable the charge process; and a TTL-level timer and termination enable (TTE) input used to disable or enable the fast-charge timer and charge termination.

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 3
Type Title Date
* Data sheet Single-Chip, Li-Ion Charge Management IC For Handheld Applications (bqTINY) datasheet (Rev. K) 27 Jan 2014
Application note QFN and SON PCB Attachment (Rev. C) PDF | HTML 06 Dec 2023
User guide 1-A Single-Chip Li-Ion & Li-Pol Charge Management IC w/Integrated PowerFET (Rev. A) 29 Oct 2002

Design & development

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

Evaluation board

BQ24012EVM — BQ24012 1-A Li-Ion Charger Evaluation Module w/ Power-Good, Charge Enable

The bq24012EVM is an evaluation tool for the bq24012 linear single-cell Li-Ion charger with integrated FET and current sense in 3x3mm2 QFN package. The EVM is a complete designed-and-tested charger circuit that allows the user to test all functions of the bq24012 and to charge a single-cell Li-Ion (...)

User guide: PDF
Not available on TI.com
GUI for evaluation module (EVM)

SLVC024 bq24715 EVM GUI Package

Supported products & hardware

Supported products & hardware

Products
Battery charger ICs
BQ2000 Switch-mode multi-chemistry battery charger with peak voltagedetection termination BQ2000T Switch-mode multi-chemistry battery charger with dT/dt termination BQ2002 NiCd/NiMH battery charge controller with negative dV, PVT and Top-Off Time setup1 BQ2002C NiCd/NiMH battery charge controller with negative dV, PVT BQ2002D NiCd/NiMH battery charge controller with dT/dt termination BQ2002E NiCd/NiMH battery charge controller with negative dV, PVT and tMTO setup1 BQ2002F NiCd/NiMH battery charge controller with negative dV, PVT and Top-Off Time setup2 BQ2002G NiCd/NiMH battery charge controller with negative dV, PVT and tMTO setup2 BQ2002T NiCd/NiMH battery charge controller with dT/dt termination and low-temperature fault BQ2031 Switch-mode Lead-Acid Battery Charger with User-Selectable Charge Algorithms BQ2057C Low Dropout linear 1-cell Li-ion battery charge controller with AutoCompTM, 4.2V BQ24010 1-cell, 1-A, linear Li-ion battery charger with AC present and temp sense in QFN-11 package BQ24012 1-cell, 1-A, linear Li-ion battery charger w/ FET, AC present & charge enable in QFN-12 BQ24013 1-cell, 1-A, linear Li-ion battery charger with charge enable & term enable in QFN-11 package BQ24200 500-mA, 4.2-V Li-ion charger for current-Limited App. w/temp sense in MSOP-8 BQ24201 500-mA, 4.1-V Li-ion charger for current-Limited App. w/temp sense in MSOP-8 BQ24202 500-mA, 4.2-V Li-ion charger for current-Limited App. w/charge status in MSOP-8 BQ24203 500-mA, 4.1-V Li-ion charger for current-Limited App. w/charge status in MSOP-8 BQ24205 500-mA, 4.1-V Li-ion charger for current-Limited App. in MSOP-8 BQ24715 SMBus 2-3 cell NVDC Buck battery charge controller with N-Channel MOSFET selectors
Software
Support software
TEMPSENSE-SW Temp Sense Designer Software
Support software

TEMPSENSE-SW — Temp Sense Designer Software

The TempSense Designer software allows the user to easily design temperature sensing circuits for many of the Texas Instruments battery charger devices. A full listing of the supported devices is included under the "Support" menu in the program. The user can use the thermisters included in the (...)
Package Pins Download
VSON (DRC) 10 View options

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

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

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