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電池管理 IC
電池充電器 IC

BQ24250

現行

在 SYSOFF 模式下具 1uA 和 TS 停用功能的 1 芯、2-A、I2C 控制降壓電池充電器

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產品規格表

BQ24250

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) 2 Features BAT temp thermistor monitoring (JEITA profile), BAT temp thermistor monitoring (hot/cold profile), IC thermal regulation, Integrated LDO, Power Path Vin (min) (V) 4.35 Vin (max) (V) 10.5 Absolute max Vin (max) (V) 22 Control topology Switch-Mode Buck Battery charge voltage (min) (V) 3.5 Battery charge voltage (max) (V) 4.44 Control interface I2C Operating temperature range (°C) -40 to 85
Rating Catalog Number of series cells 1 Cell chemistry Li-Ion/Li-Polymer Charge current (max) (A) 2 Features BAT temp thermistor monitoring (JEITA profile), BAT temp thermistor monitoring (hot/cold profile), IC thermal regulation, Integrated LDO, Power Path Vin (min) (V) 4.35 Vin (max) (V) 10.5 Absolute max Vin (max) (V) 22 Control topology Switch-Mode Buck Battery charge voltage (min) (V) 3.5 Battery charge voltage (max) (V) 4.44 Control interface I2C Operating temperature range (°C) -40 to 85
DSBGA (YFF) 30 5.71999999999999912 mm² 2.2 x 2.5999999999999996 VQFN (RGE) 24 16 mm² 4 x 4
  • High-Efficiency Switched-Mode Charger With
    Separate Power Path
  • Startup System From Deeply Discharged or
    Missing Battery
  • USB Charging Compliant
    • Selectable Input Current Limit of 100 mA,
      500 mA, 900 mA, 1.5 A, and 2 A
  • BC1.2 Compatible D+, D– Detection
  • In Host Mode (After I2C Communication Starts
    and Before Watchdog Timer Times Out)
    • Programmable Battery Charge Voltage,
      VBATREG
    • Programmable Charge Current (ICHG)
    • Programmable Input Current Limit (ILIM)
    • Programmable Input Voltage-Based Dynamic
      Power Management Threshold, (VIN_DPM)
    • Programmable Input Overvoltage Protection
      Threshold (VOVP)
    • Programmable Safety Timer
  • Resistor Programmable Defaults for:
    • ICHG up to 2 A With Current Monitoring Output
      (ISET)
    • ILIM up to 2 A With Current Monitoring Output
      (ILIM)
    • VIN_DPM (VDPM)
  • Watchdog Timer Disable Bit
  • Integrated 4.9 V, 50 mA LDO
  • Complete System-Level Protection
    • Input UVLO, Input Overvoltage Protection
      (OVP), Battery OVP, Sleep Mode, VIN_DPM
    • Input Current Limit
    • Charge Current Limit
    • Thermal Regulation
    • Thermal Shutdown
    • Voltage-Based, JEITA Compatible NTC
      Monitoring Input
    • Safety Timer
  • 22 V Absolute Maximum Input Voltage Rating
  • 10.5 V Maximum Operating Input Voltage
  • Low RDS(on) Integrated Power FETs for a Charging
    Rate of up to 2 A
  • Open-Drain Status Outputs
  • Synchronous Fixed-Frequency PWM Controller
    Operating at 3 MHz for Small Inductor Support
  • AnyBoot Robust Battery Detection Algorithm
  • Charge Time Optimizer for Improved Charge
    Times at Any Given Charge Current
  • 2.40-mm × 2.00-mm 30-Ball DSBGA and 4-mm ×
    4-mm 24-Pin QFN Packages
  • High-Efficiency Switched-Mode Charger With
    Separate Power Path
  • Startup System From Deeply Discharged or
    Missing Battery
  • USB Charging Compliant
    • Selectable Input Current Limit of 100 mA,
      500 mA, 900 mA, 1.5 A, and 2 A
  • BC1.2 Compatible D+, D– Detection
  • In Host Mode (After I2C Communication Starts
    and Before Watchdog Timer Times Out)
    • Programmable Battery Charge Voltage,
      VBATREG
    • Programmable Charge Current (ICHG)
    • Programmable Input Current Limit (ILIM)
    • Programmable Input Voltage-Based Dynamic
      Power Management Threshold, (VIN_DPM)
    • Programmable Input Overvoltage Protection
      Threshold (VOVP)
    • Programmable Safety Timer
  • Resistor Programmable Defaults for:
    • ICHG up to 2 A With Current Monitoring Output
      (ISET)
    • ILIM up to 2 A With Current Monitoring Output
      (ILIM)
    • VIN_DPM (VDPM)
  • Watchdog Timer Disable Bit
  • Integrated 4.9 V, 50 mA LDO
  • Complete System-Level Protection
    • Input UVLO, Input Overvoltage Protection
      (OVP), Battery OVP, Sleep Mode, VIN_DPM
    • Input Current Limit
    • Charge Current Limit
    • Thermal Regulation
    • Thermal Shutdown
    • Voltage-Based, JEITA Compatible NTC
      Monitoring Input
    • Safety Timer
  • 22 V Absolute Maximum Input Voltage Rating
  • 10.5 V Maximum Operating Input Voltage
  • Low RDS(on) Integrated Power FETs for a Charging
    Rate of up to 2 A
  • Open-Drain Status Outputs
  • Synchronous Fixed-Frequency PWM Controller
    Operating at 3 MHz for Small Inductor Support
  • AnyBoot Robust Battery Detection Algorithm
  • Charge Time Optimizer for Improved Charge
    Times at Any Given Charge Current
  • 2.40-mm × 2.00-mm 30-Ball DSBGA and 4-mm ×
    4-mm 24-Pin QFN Packages

The bq24250, bq24251, and bq24253 are highly integrated single-cell Li-Ion battery chargers and system power-path management devices targeted for space-limited, portable applications with high-capacity batteries. The single-cell charger has a single input that operates from either a USB port or an AC wall adapter for a versatile solution.

The power-path management feature allows the bq24250, bq24251, and bq24253 to power the system from a high-efficiency DC-DC converter while simultaneously and independently charging the battery. The charger monitors the battery current at all times and reduces the charge current when the system load requires current above the input current limit. This reduced charge current allows for proper charge termination and enables the system to run with a defective or absent battery pack. Additionally, this reduced charge current enables instant system turnon even with a totally discharged battery or no battery. The architecture of the power-path management also permits the battery to supplement the system current requirements when the adapter cannot deliver the peak system currents. This supplementation of current requirements enables the use of a smaller adapter.

The battery is charged in four phases: trickle charge, precharge, constant current, and constant voltage. In all charge phases, an internal control loop monitors the IC junction temperature and reduces the charge current if the internal temperature threshold is exceeded. Additionally, a voltage-based, JEITA compatible battery pack thermistor monitoring input (TS) that monitors battery temperature for safe charging is included.

The bq24250, bq24251, and bq24253 are highly integrated single-cell Li-Ion battery chargers and system power-path management devices targeted for space-limited, portable applications with high-capacity batteries. The single-cell charger has a single input that operates from either a USB port or an AC wall adapter for a versatile solution.

The power-path management feature allows the bq24250, bq24251, and bq24253 to power the system from a high-efficiency DC-DC converter while simultaneously and independently charging the battery. The charger monitors the battery current at all times and reduces the charge current when the system load requires current above the input current limit. This reduced charge current allows for proper charge termination and enables the system to run with a defective or absent battery pack. Additionally, this reduced charge current enables instant system turnon even with a totally discharged battery or no battery. The architecture of the power-path management also permits the battery to supplement the system current requirements when the adapter cannot deliver the peak system currents. This supplementation of current requirements enables the use of a smaller adapter.

The battery is charged in four phases: trickle charge, precharge, constant current, and constant voltage. In all charge phases, an internal control loop monitors the IC junction temperature and reduces the charge current if the internal temperature threshold is exceeded. Additionally, a voltage-based, JEITA compatible battery pack thermistor monitoring input (TS) that monitors battery temperature for safe charging is included.
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類型 標題 日期
* Data sheet bq2425x 2A Single-Input I2C, Stand-Alone Switched-Mode Li-Ion Battery Charger With Power-Path Management datasheet (Rev. H) PDF | HTML 2015年 8月 20日
Technical article TI DLP® NIRscan™ Nano Evaluation Module has answers to your handheld near-infrared PDF | HTML 2015年 10月 2日
Product overview Battery Management Solutions for Point of Sale Systems 2014年 8月 18日
Analog Design Journal Battery-charging considerations for high-power portable devices 2014年 4月 11日
Analog Design Journal Extract maximum power from the supply when charging a battery 2014年 4月 11日
Application note Building your own Battery Simulator 2013年 10月 14日
Application note Using bq2425x’s DPM Feature for Solar Panel Applications 2013年 7月 31日
Application note Selecting the Best bq2425x Single Cell I2C, Standalone Switch-Mode Battery Charg 2013年 6月 17日
User guide bq24257EVM-150, Single-Cell Li-Ion Switch-Mode Charger (Rev. A) 2013年 4月 3日
Product overview Power Bank Charger ICs 2013年 2月 25日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

BOOSTXL-BATPAKMKII — Fuel Tank MKII 電池 BoosterPack 插入式模組

Fuel Tank MKII BoosterPack™ 外掛程式模組是新一代的原裝 Fuel Tank BoosterPack 模組。它包括新一代 TI 電池監控 IC 和其他新功能，讓其更易於使用。其可讓 TI LaunchPad™ 開發套件由隨附的充電式鋰聚合物電池供電，以實現行動應用開發與評估。

Fuel Tank MKII BoosterPack 外掛程式模組包含板載鋰聚合物電池充電器和電量計，可提供電池的重要參數，包括溫度、充電狀態、容量等。BoosterPack 模組隨附鋰聚合物電池芯，可透過開關斷開，並透過板載 micro USB 連接器充電。

此 BoosterPack (...)

使用指南: PDF
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開發板

BQ24250EVM-150 — BQ24250EVM-150 單路輸入 I2C/獨立開關模式鋰離子電池充電器評估模組

This EVM enables test and evaluation of the Texas Instruments' bq24250/51/57 devices. The bq2425x series are highly integrated single cell Li-Ion battery chargers targeted for space-limited, portable applications with high capacity batteries. The single cell charger has a single input that (...)

使用指南: PDF
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應用軟體及架構

TI-CHARGER-GUI — 適於與 USB2ANY 和電池充電搭配使用的 GUI 軟體評估模組

TI-CHARGER-GUI 提供網路型或獨立式圖形使用者介面，協助評估、設計、配置或測試電池充電器產品。該軟體提供暫存器的完整存取權，以及用於傳送及排序指令的簡易介面。
在雲端評估
程式碼範例或展示

BOOSTXL-BATPAKMKII-SW

支援產品和硬體

支援產品和硬體

產品
電池充電器 IC
  • BQ24250 — 在 SYSOFF 模式下具 1uA 和 TS 停用功能的 1 芯、2-A、I2C 控制降壓電池充電器
電池電量指示
  • BQ27441-G1 — 系統側 Impedance Track™ 電池電量 (氣量) 計
硬體開發
開發板
下載選項
驅動程式或資料庫

BQ24257SW-LINUX — 適用於 BQ2425x 的 Linux 驅動程式

The Linux driver supports the BQ2425x switch-mode Li-ion battery charger. The Linux driver supports communication through the I2C bus and interfaces with the power supply sub-system.

 

Linux mainline status

Available in Linux mainline: Yes
Available through git.ti.com: N/A 

Linux source files

The files (...)

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支援軟體

SLUC435 — bq24250EVM Software

支援產品和硬體

支援產品和硬體

產品
電池充電器 IC
  • BQ24250 — 在 SYSOFF 模式下具 1uA 和 TS 停用功能的 1 芯、2-A、I2C 控制降壓電池充電器
  • BQ24251 — 2A 單輸入 I2C / 獨立切換式鋰離子電池充電器
  • BQ24257 — 2A 單輸入 I2C / 獨立切換式鋰離子電池充電器
硬體開發
開發板
  • BQ24250EVM-150 — BQ24250EVM-150 單路輸入 I2C/獨立開關模式鋰離子電池充電器評估模組
  • BQ24251EVM-150 — BQ24251EVM-150 單路輸入 I2C/獨立開關模式鋰離子電池充電器評估模組
下載
計算工具

SLUC436 — Thermal TS bq2425x Calculator Tool

支援產品和硬體

支援產品和硬體

產品
電池充電器 IC
  • BQ24250 — 在 SYSOFF 模式下具 1uA 和 TS 停用功能的 1 芯、2-A、I2C 控制降壓電池充電器
  • BQ24251 — 2A 單輸入 I2C / 獨立切換式鋰離子電池充電器
  • BQ24257 — 2A 單輸入 I2C / 獨立切換式鋰離子電池充電器
硬體開發
開發板
  • BQ24250EVM-150 — BQ24250EVM-150 單路輸入 I2C/獨立開關模式鋰離子電池充電器評估模組
  • BQ24251EVM-150 — BQ24251EVM-150 單路輸入 I2C/獨立開關模式鋰離子電池充電器評估模組
下載
參考設計

TIDA-00554 — 具有 Bluetooth 連線且適用於可攜式化學分析的 DLP 超行動 NIR 光譜儀

The ultra-mobile near-infrared (NIR) spectrometer reference design utilizes Texas Instruments' DLP technology in conjunction with a single-element InGaAs detector to deliver high performance measurements in a portable form factor that is more affordable than architectures using an expensive InGaAs (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-00587 — 充電器 Booster Pack 參考設計

The TIDA-00587 reference design is a charger that has been designed as a booster pack to fit on the TI Launchpad development boards. The use of this this board for development will reduce the time spent in design and test of the bq24250 charger IC. You can charger your battery and using the on (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-00048 — 2A 單路輸入 I2C/獨立切換式鋰離子電池充電器參考設計

This reference design contains highly integrated single cell Li-Ion battery chargers targeted for space-limited, portable applications with high capacity batteries. The solution includes a single cell charger with a single input that operates from either a USB port or AC wall adapter for a (...)
Test report: PDF
電路圖: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
DSBGA (YFF) 30 Ultra Librarian
VQFN (RGE) 24 Ultra Librarian
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