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電池充電器 IC

BQ24080

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具 AC 交流電出現和充電賦能的 1 芯 1-A 鋰電池充電器

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BQ24080 將逐漸停產
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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 This product is an 800-mA, single cell Li-Ion and LiFePO4 battery linear charger with programmable charge voltage
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BQ24040 現行 獨立式 1 芯 1-A 線性電池充電器，具 4.2-V VBAT 和溫度感測 This product is a 1-A, standalone, single-cell Li-Ion battery charger in a 2x2mm package.

BQ24080

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產品詳細資料

Number of series cells 1 Charge current (max) (A) 1 Vin (max) (V) 6.5 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) 7 Control topology Linear Control interface Standalone (RC-Settable) Features BAT temp thermistor monitoring (hot/cold profile) Vin (min) (V) 4.5 Rating Catalog Operating temperature range (°C) -40 to 85
Number of series cells 1 Charge current (max) (A) 1 Vin (max) (V) 6.5 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) 7 Control topology Linear Control interface Standalone (RC-Settable) Features BAT temp thermistor monitoring (hot/cold profile) Vin (min) (V) 4.5 Rating Catalog Operating temperature range (°C) -40 to 85
VSON (DRC) 10 9 mm² 3 x 3
  • Integrated Power FET and Current Sensor for Up to 1-A Charge Applications From AC Adapter
  • Precharge Conditioning With Safety Timer
  • Charge and Power-Good Status Output
  • Automatic Sleep Mode for Low Power Consumption
  • Integrated Charge-Current Monitor
  • Fixed 7-Hour Fast Charge Safety Timer
  • Ideal for Low-Dropout Charger Designs for Single-Cell Li-Ion or Li-Pol Packs in Space-Limited Portable Applications
  • Small 3.00-mm × 3.00-mm VSON Package
  • Integrated Power FET and Current Sensor for Up to 1-A Charge Applications From AC Adapter
  • Precharge Conditioning With Safety Timer
  • Charge and Power-Good Status Output
  • Automatic Sleep Mode for Low Power Consumption
  • Integrated Charge-Current Monitor
  • Fixed 7-Hour Fast Charge Safety Timer
  • Ideal for Low-Dropout Charger Designs for Single-Cell Li-Ion or Li-Pol Packs in Space-Limited Portable Applications
  • Small 3.00-mm × 3.00-mm VSON Package

The bq24080 and bq24081 are highly integrated and flexible Li-Ion linear charge devices targeted at space-limited charger applications. They offer an integrated power FET and current sensor, high-accuracy current and voltage regulation, charge status, and charge termination, in a single monolithic device. An external resistor sets the magnitude of the charge current.

The device 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 for charge termination. The device automatically restarts the charge if the battery voltage falls below an internal threshold. The device automatically enters sleep mode when the ac adapter is removed.

The bq24080 and bq24081 are highly integrated and flexible Li-Ion linear charge devices targeted at space-limited charger applications. They offer an integrated power FET and current sensor, high-accuracy current and voltage regulation, charge status, and charge termination, in a single monolithic device. An external resistor sets the magnitude of the charge current.

The device 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 for charge termination. The device automatically restarts the charge if the battery voltage falls below an internal threshold. The device automatically enters sleep mode when the ac adapter is removed.
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類型 標題 日期
* Data sheet BQ24080, BQ24081 1-A, Single-Chip, Li-Ion and Li-Pol Charger IC datasheet (Rev. F) PDF | HTML 2017年 5月 8日
Analog Design Journal Battery-charger front-end IC improves charging-system safety 2008年 5月 16日
User guide BQ24080 1-A Single-Cell Li-Ion and Li-Polymer Charge Mgmt IC EVM 2006年 5月 23日

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BQ24080EVM — bq24080 評估模組

The bq24080EVM provides a convenient method for evaluating the performance of a charge management solution for portable applications. A complete designed and tested charger is presented. The charger is designed to deliver up to 1 A of continuous charge current for single-cell Li-ion or (...)

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