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電池管理 IC
電池充電器 IC

BQ24070

現行

1 芯 2-A 鋰離子線性電池充電器、電源路徑、輸出調節爲 4.4V

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BQ25185 現行 具電源路徑和太陽能輸入支援的 1 芯 1A 獨立線性電池充電器 BQ25185 comes with wider Vin, higher battery discharge and solar input support.

BQ24070

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Number of series cells 1 Cell chemistry Li-Ion/Li-Polymer Charge current (max) (A) 1.5 Features BAT temp thermistor monitoring (hot/cold profile), IC thermal regulation, Power Path Vin (min) (V) 4.35 Vin (max) (V) 16 Absolute max Vin (max) (V) 18 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 85
Rating Catalog Number of series cells 1 Cell chemistry Li-Ion/Li-Polymer Charge current (max) (A) 1.5 Features BAT temp thermistor monitoring (hot/cold profile), IC thermal regulation, Power Path Vin (min) (V) 4.35 Vin (max) (V) 16 Absolute max Vin (max) (V) 18 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 85
VQFN (RHL) 20 15.75 mm² (4.5 mm × 3.5 mm)
  • Small 3.5-mm × 4.5-mm VQFN Package
  • Designed for Single-Cell Li-Ion- or Li-Polymer-
    Based Portable Applications
  • Integrated Dynamic Power-Path Management (DPPM)
    Feature Allowing the AC Adapter to Simultaneously
    Power the System and Charge the Battery
  • Power Supplement Mode Allows Battery to Supplement
    the AC Input Current
  • Autonomous Power Source Selection (AC Adapter
    or BAT)
  • Supports Up to 2 A Total Current
  • Thermal Regulation for Charge Control
  • Charge Status Outputs for LED or System Interface
    Indicates Charge and Fault Conditions
  • Reverse Current, Short-Circuit, and Thermal
    Protection
  • Power Good Status Outputs
  • 4.4-V and 6-V Options for System Output Regulation
    Voltage
  • Small 3.5-mm × 4.5-mm VQFN Package
  • Designed for Single-Cell Li-Ion- or Li-Polymer-
    Based Portable Applications
  • Integrated Dynamic Power-Path Management (DPPM)
    Feature Allowing the AC Adapter to Simultaneously
    Power the System and Charge the Battery
  • Power Supplement Mode Allows Battery to Supplement
    the AC Input Current
  • Autonomous Power Source Selection (AC Adapter
    or BAT)
  • Supports Up to 2 A Total Current
  • Thermal Regulation for Charge Control
  • Charge Status Outputs for LED or System Interface
    Indicates Charge and Fault Conditions
  • Reverse Current, Short-Circuit, and Thermal
    Protection
  • Power Good Status Outputs
  • 4.4-V and 6-V Options for System Output Regulation
    Voltage

The bq24070 and bq24071 are highly integrated Li-ion linear charger and system power-path management devices targeted at space-limited portable applications. The bq2407x devices offer DC supply (AC adapter) power-path management with autonomous power-source selection, power FETs and current sensors, high-accuracy current and voltage regulation, charge status, and charge termination, in a single monolithic device.

The bq2407x devices power the system while independently charging the battery. This feature reduces the charge and discharge cycles on the battery, allows for proper charge termination, and allows the system to run with an absent or defective battery pack. This feature also allows for the system to instantaneously turn on from an external power source in the case of a deeply discharged battery pack. The IC design is focused on supplying continuous power to the system when available from the AC adapter or battery sources.

The bq24070 and bq24071 are highly integrated Li-ion linear charger and system power-path management devices targeted at space-limited portable applications. The bq2407x devices offer DC supply (AC adapter) power-path management with autonomous power-source selection, power FETs and current sensors, high-accuracy current and voltage regulation, charge status, and charge termination, in a single monolithic device.

The bq2407x devices power the system while independently charging the battery. This feature reduces the charge and discharge cycles on the battery, allows for proper charge termination, and allows the system to run with an absent or defective battery pack. This feature also allows for the system to instantaneously turn on from an external power source in the case of a deeply discharged battery pack. The IC design is focused on supplying continuous power to the system when available from the AC adapter or battery sources.
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BQ24072 現行 獨立式 1 芯 1.5-A 線性充電器、電源路徑、4.2-V VBAT 和 VOUT=VBAT + 225mV This product is a 1.5-A, standalone, single-cell Li-Ion battery charger with power path in a 3x3mm package.

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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 bq2407x Single-Chip Li-Ion Charge and System Power-Path Management IC datasheet (Rev. G) PDF | HTML 2014/12/23
應用說明 Designing the TS Pin Network for Battery Chargers with Current-Based Battery NTC Temperature Sensing PDF | HTML 2026/6/22
應用說明 Dynamic Power-Path Mgmt & Dynamic Power Mgmt (Rev. A) 2018/5/1
類比設計期刊 2Q 2016 Analog Applications Journal Issue 2016/4/26
類比設計期刊 Battery-charging considerations for low-power applications 2016/4/26
應用說明 Selecting the Best bq2407x/23x Single Cell Battery Charger for your Application 2012/11/8
類比設計期刊 Q1 2009 Issue Analog Applications Journal 2009/3/11
類比設計期刊 Improving Battery Safety, Charging, and Fuel Gauging in Portable Media Apps 2009/3/11
使用指南 Power-Path Li-Ion Charger Selection 2008/10/17
使用指南 bq24070 1.5-A Single-Chip Li-Ion & Li-Pol Charge Mgmt IC (Rev. A) 2006/8/30

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開發板

BQ24070EVM — BQ24070 評估模組

The Texas Instruments bq24070EVM is the evaluation module (EVM) for the bq24070 Single-Chip Charge and Dynamic Power-Path Management IC in 3.5x4.5 mm2 QFN package. The EVM is a complete bq24070 based circuit and provides a convenient method to evaluate the operation and performance of the IC.

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