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電池管理 IC
電池充電器 IC

BQ24012

現行

採用 QFN-12，具有 FET、交流電出現和充電賦能的 1 芯 1-A 線性鋰離子電池充電器

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產品規格表

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open-in-new 比較替代產品
功能相同，但引腳輸出與所比較的產品不同
BQ25170 現行 適用於單節鋰離子和磷酸鐵鋰電池的 800mA 線性電池充電器 Supports multiple resistor programmable battery voltage with lower IQ

BQ24012

現行
產品規格表 立即訂購

產品詳細資料

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.
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類型 標題 日期
* Data sheet Single-Chip, Li-Ion Charge Management IC For Handheld Applications (bqTINY) datasheet (Rev. K) 2014年 1月 27日
Application note QFN and SON PCB Attachment (Rev. C) PDF | HTML 2023年 12月 6日
User guide 1-A Single-Chip Li-Ion & Li-Pol Charge Management IC w/Integrated PowerFET (Rev. A) 2002年 10月 29日

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開發板

BQ24012EVM — 具電源良好及充電啟動功能的 BQ24012 1A 鋰離子充電器評估模組

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 (...)

使用指南: PDF
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開發模組 (EVM) 的 GUI

SLVC024 — bq24715 EVM GUI Package

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BQ2000 — 具有峰值電壓偵測終端器的切換式多化合物電池充電器 BQ2000T — 具有 dT/dt 終端的切換模式多化合物電池充電器 BQ2002 — 具有負 dV、PVT 和加滿時間設置 1 的鎳鎘/鎳氫電池充電控制器 BQ2002C — 具有負 dV、PVT 的鎳鎘/鎳氫電池充電控制器 BQ2002D — 具有 dT/dt 終端的切換模式鎳鎘/鎳氫電池控制器 BQ2002E — 具有負 dV、PVT 和 tMTO setup1 的鎳鎘/鎳氫電池充電控制器 BQ2002F — 具有負 dV、PVT 和加滿時間設置 2 的鎳鎘/鎳氫電池充電控制器 BQ2002G — 具有負 dV、PVT 和 tMTO 設定 2 的鎳鎘/鎳氫電池充電控制器 BQ2002T — 具有 dT/dt 終端和低溫故障的鎳鎘/鎳氫電池充電控制器 BQ2031 — 具有用戶可選充電演算法的切換模式鉛酸電池充電器 BQ2057C — 具有 AutoCompTM 4.2V 的低壓差線性 1 芯鋰離子電池充電控制器 BQ24010 — 採用 QFN-11 封裝，具有交流電和溫度感測的 1 芯、1A 線性鋰離子電池充電器 BQ24012 — 採用 QFN-12，具有 FET、交流電出現和充電賦能的 1 芯 1-A 線性鋰離子電池充電器 BQ24013 — 採用 QFN-11 封裝，具有充電賦能、充電終止賦能的 1 芯 1-A 線性鋰離子電池充電器 BQ24200 — 採用 MSOP-8 封裝且具溫度感測功能的 500-mA、4.2-V 鋰離子充電器，適用於電流限制應用 BQ24201 — 採用 MSOP-8 封裝且具溫度感測功能的 500-mA、4.1-V 鋰離子充電器，適用於電流限制應用 BQ24202 — 採用 MSOP-8 封裝、顯示充電狀態、適用於電流限制應用的 500-mA、4.2-V 鋰離子充電器 BQ24203 — 採用 MSOP-8 封裝、顯示充電狀態、適用於電流限制應用的 500-mA、4.1-V 鋰離子充電器 BQ24205 — 採用 MSOP-8 封裝、適用於電流限制應用的 500-mA、4.1-V 鋰離子充電器 BQ24715 — 具 N 通道功率 MOSFET 選擇器的 SMBus 2-3 芯 NVDC 降壓電池充電器控制器
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