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電池充電器 IC

BQ24093

現行

1 芯、1-A 鋰離子電池充電器，可通過 JEITA 和 100kΩ NTC 運行

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產品規格表

BQ24093

現行
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產品詳細資料

Rating Catalog Number of series cells 1 Cell chemistry Li-Ion/Li-Polymer Charge current (max) (A) 1 Features BAT temp thermistor monitoring (JEITA profile), BAT temp thermistor monitoring (hot/cold profile), IC thermal regulation, Input OVP, VINDPM (Input voltage threshold to maximize adaptor power) Vin (min) (V) 4.45 Vin (max) (V) 6.45 Absolute max Vin (max) (V) 12 Control topology Linear Battery charge voltage (min) (V) 4.2 Battery charge voltage (max) (V) 4.2 Control interface Standalone (RC-Settable) Operating temperature range (°C) -40 to 150
Rating Catalog Number of series cells 1 Cell chemistry Li-Ion/Li-Polymer Charge current (max) (A) 1 Features BAT temp thermistor monitoring (JEITA profile), BAT temp thermistor monitoring (hot/cold profile), IC thermal regulation, Input OVP, VINDPM (Input voltage threshold to maximize adaptor power) Vin (min) (V) 4.45 Vin (max) (V) 6.45 Absolute max Vin (max) (V) 12 Control topology Linear Battery charge voltage (min) (V) 4.2 Battery charge voltage (max) (V) 4.2 Control interface Standalone (RC-Settable) Operating temperature range (°C) -40 to 150
HVSSOP (DGQ) 10 14.7 mm² (3 mm × 4.9 mm)
  • Charging
    • 1% charge voltage accuracy
    • 10% charge current accuracy
    • Pin selectable USB 100-mA and 500-mA maximum input current limit
    • Programmable termination and precharge threshold
  • Protection
    • 6.6-V overvoltage protection
    • Input voltage dynamic power management
    • 125°C thermal regulation; 150°C thermal shutdown protection
    • OUT short-circuit protection and ISET short detection
    • Operation over JEITA range via battery NTC – ½ fast-charge-current at cold, 4.06 V at hot, BQ092/3
    • Fixed 10-hour safety timer
  • System
    • Automatic Termination and Timer Disable Mode (TTDM) for absent battery pack with thermistor
    • Status indication – charging/done
    • Available in a small 10-pin MSOP package
  • Charging
    • 1% charge voltage accuracy
    • 10% charge current accuracy
    • Pin selectable USB 100-mA and 500-mA maximum input current limit
    • Programmable termination and precharge threshold
  • Protection
    • 6.6-V overvoltage protection
    • Input voltage dynamic power management
    • 125°C thermal regulation; 150°C thermal shutdown protection
    • OUT short-circuit protection and ISET short detection
    • Operation over JEITA range via battery NTC – ½ fast-charge-current at cold, 4.06 V at hot, BQ092/3
    • Fixed 10-hour safety timer
  • System
    • Automatic Termination and Timer Disable Mode (TTDM) for absent battery pack with thermistor
    • Status indication – charging/done
    • Available in a small 10-pin MSOP package

The BQ2409x series of devices are highly integrated Li-ion and Li-Pol linear chargers devices targeted at space-limited portable applications. The devices operate from either a USB port or AC adapter. The high input voltage range with input overvoltage protection supports low-cost unregulated adapters.

The BQ2409x has a single power output that charges the battery. A system load can be placed in parallel with the battery as long as the average system load does not keep the battery from charging fully during the 10-hour safety timer.

The battery is charged in three phases: conditioning, constant current and constant voltage. In all charge phases, an internal control loop monitors the IC junction temperature and reduces the charge current if an internal temperature threshold is exceeded.

The charger power stage and charge current sense functions are fully integrated. The charger function has high accuracy current and voltage regulation loops, charge status display, and charge termination. The pre-charge current and termination current threshold are programmed via an external resistor. The fast charge current value is also programmable via an external resistor.

The BQ2409x series of devices are highly integrated Li-ion and Li-Pol linear chargers devices targeted at space-limited portable applications. The devices operate from either a USB port or AC adapter. The high input voltage range with input overvoltage protection supports low-cost unregulated adapters.

The BQ2409x has a single power output that charges the battery. A system load can be placed in parallel with the battery as long as the average system load does not keep the battery from charging fully during the 10-hour safety timer.

The battery is charged in three phases: conditioning, constant current and constant voltage. In all charge phases, an internal control loop monitors the IC junction temperature and reduces the charge current if an internal temperature threshold is exceeded.

The charger power stage and charge current sense functions are fully integrated. The charger function has high accuracy current and voltage regulation loops, charge status display, and charge termination. The pre-charge current and termination current threshold are programmed via an external resistor. The fast charge current value is also programmable via an external resistor.
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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 BQ2409x 1-A, Single-Input, Single-Cell Li-Ion and Li-Pol Battery Chargers datasheet (Rev. H) 2021/4/27
應用說明 Building your own Battery Simulator 2013/10/14

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參考設計

TIDA-00043 — 1A 單路輸入、單節鋰離子和鋰聚合物電池充電器參考設計

This reference design delivers up to 1000 mA of continuous current to the battery output when programmed with a resistor on the ISET pin and is programmed at the factory for ~540 mA. The USB current limit modes are selected by the ISET2 pin and limits current to a maximum of 500 mA (logic (...)

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HVSSOP (DGQ) 10 Ultra Librarian
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