BQ24018 - 用于便携式应用的单芯片锂离子充电管理 IC (bqTINY)

BQ24018是TI德州仪器公司的一款电池充电器IC产品，BQ24018是用于便携式应用的单芯片锂离子充电管理 IC (bqTINY)，本站介绍了BQ24018的封装应用图解、特点和优点、功能等，并给出了与BQ24018相关的TI元器件型号供参考。

BQ24018 - 用于便携式应用的单芯片锂离子充电管理 IC (bqTINY) - 电池充电器IC - 电池管理产品 - 德州仪器

产品描述

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.

产品特性

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

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