GUI for evaluation module (EVM)
BQ24012
1-cell, 1-A, linear Li-ion battery charger w/ FET, AC present & charge enable in QFN-12
Data sheet
BQ24012
- 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.
Technical documentation
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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
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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
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| VSON (DRC) | 10 | Ultra Librarian |
Ordering & quality
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