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電池管理 IC
電池充電器 IC

BQ25180

現行

採用 WCSP 封裝且具有穩壓電源路徑的 1-A 鋰離子和 LiFePO4 I²C 可編程線性充電器

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產品規格表

BQ25180

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) 5.5 Cell chemistry Li-Ion/Li-Polymer, Lithium Phosphate/LiFePO4 Battery charge voltage (min) (V) 3.6 Battery charge voltage (max) (V) 4.65 Absolute max Vin (max) (V) 25 Control topology Linear Control interface I2C Features BAT temp thermistor monitoring (JEITA profile), IC thermal regulation, IINDPM (Input current limit), Input OVP, Power Path, VINDPM (Input voltage threshold to maximize adaptor power) 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) 5.5 Cell chemistry Li-Ion/Li-Polymer, Lithium Phosphate/LiFePO4 Battery charge voltage (min) (V) 3.6 Battery charge voltage (max) (V) 4.65 Absolute max Vin (max) (V) 25 Control topology Linear Control interface I2C Features BAT temp thermistor monitoring (JEITA profile), IC thermal regulation, IINDPM (Input current limit), Input OVP, Power Path, VINDPM (Input voltage threshold to maximize adaptor power) Vin (min) (V) 3 Rating Catalog Operating temperature range (°C) -40 to 85
DSBGA (YBG) 8 1.752689 mm² 1.783 x 0.983
  • 1-A Power path linear battery charger
    • 3.0-V to 5.9-V input voltage operating range optimized for battery to battery charging and USB adapter
    • 25-V tolerant input voltage
    • Configurable battery regulation voltage with 0.5% accuracy from 3.6 V to 4.65 V in 10-mV steps
    • 5-mA to 1-A configurable fast charge current
    • 55-mΩ battery FET ON resistance
    • Up to 2.5-A discharge current to support high system loads
    • Configurable termination current down to 0.5 mA
    • Configurable NTC charging profile thresholds including JEITA support
    • Power cycle and advanced reset mechanisms to recover system
  • Power path management for powering the system and charging the battery
    • Regulated system voltage (SYS) ranging from 4.4 V to 4.9 V in addition to battery voltage tracking and input pass-though options
    • Configurable input current limit
    • Selectable adapter or battery power for system
    • Dynamic power path management optimizes charging from weak adapters
  • Ultra low quiescent current modes
    • 15-nA Shutdown mode
    • 3.2-µA Ship mode with button press wake
    • 3 µA in Battery Only mode
    • 30-µA input adapter Iq in Sleep mode
  • One push-button wake-up and reset input
  • Integrated fault protection
    • Input overvoltage protection (VIN_OVP)
    • Battery undervoltage protection (VBUVLO)
    • Battery short protection (BATSC)
    • Battery overcurrent protection (BATOCP)
    • Input current limit protection (ILIM)
    • Thermal regulation (TREG) and thermal shutdown (TSHUT)
    • Battery thermal fault protection (TS)
    • Watchdog and safety timer fault
    • System short protection
    • System overvoltage protection
  • 1-A Power path linear battery charger
    • 3.0-V to 5.9-V input voltage operating range optimized for battery to battery charging and USB adapter
    • 25-V tolerant input voltage
    • Configurable battery regulation voltage with 0.5% accuracy from 3.6 V to 4.65 V in 10-mV steps
    • 5-mA to 1-A configurable fast charge current
    • 55-mΩ battery FET ON resistance
    • Up to 2.5-A discharge current to support high system loads
    • Configurable termination current down to 0.5 mA
    • Configurable NTC charging profile thresholds including JEITA support
    • Power cycle and advanced reset mechanisms to recover system
  • Power path management for powering the system and charging the battery
    • Regulated system voltage (SYS) ranging from 4.4 V to 4.9 V in addition to battery voltage tracking and input pass-though options
    • Configurable input current limit
    • Selectable adapter or battery power for system
    • Dynamic power path management optimizes charging from weak adapters
  • Ultra low quiescent current modes
    • 15-nA Shutdown mode
    • 3.2-µA Ship mode with button press wake
    • 3 µA in Battery Only mode
    • 30-µA input adapter Iq in Sleep mode
  • One push-button wake-up and reset input
  • Integrated fault protection
    • Input overvoltage protection (VIN_OVP)
    • Battery undervoltage protection (VBUVLO)
    • Battery short protection (BATSC)
    • Battery overcurrent protection (BATOCP)
    • Input current limit protection (ILIM)
    • Thermal regulation (TREG) and thermal shutdown (TSHUT)
    • Battery thermal fault protection (TS)
    • Watchdog and safety timer fault
    • System short protection
    • System overvoltage protection

The BQ25180 is a linear battery charger IC focusing on small solution size and low quiescent current for extending battery life. The device is available in an 8-ball chipscale package which does not need HDI PCB process for fabrication thereby reducing the PCB cost. The device can support up to 1-A charging and system loads of up to 2.5 A.

The battery is charged using a standard Li-ion or LiFePO4 charge profile with three phases: precharge, constant current and constant voltage. Thermal regulation provides the maximum charge current while managing the device temperature. The charger is also optimized for battery to battery charging with 3-V minimum input voltage operation and can withstand 25-V absolute maximum line transients. The device integrates a single push-button input and reset circuitry to reduce the total solution footprint.

The BQ25180 is a linear battery charger IC focusing on small solution size and low quiescent current for extending battery life. The device is available in an 8-ball chipscale package which does not need HDI PCB process for fabrication thereby reducing the PCB cost. The device can support up to 1-A charging and system loads of up to 2.5 A.

The battery is charged using a standard Li-ion or LiFePO4 charge profile with three phases: precharge, constant current and constant voltage. Thermal regulation provides the maximum charge current while managing the device temperature. The charger is also optimized for battery to battery charging with 3-V minimum input voltage operation and can withstand 25-V absolute maximum line transients. The device integrates a single push-button input and reset circuitry to reduce the total solution footprint.
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類型 標題 日期
* Data sheet BQ25180 I2C Controlled, 1-Cell, 1-A Linear Battery Charger with Power Path and Ship Mode datasheet (Rev. C) PDF | HTML 2023年 1月 20日
Application note LiFePO4 Design Considerations PDF | HTML 2023年 7月 26日
Analog Design Journal 以電源路徑電池充電器將應用最佳化 PDF | HTML 2023年 6月 19日
Application note Implementing 2-V Charge Inhibition PDF | HTML 2023年 5月 31日
Application note Maximizing the Full Potential of NTC Using BQ25180 Linear Charger PDF | HTML 2023年 1月 23日
Application note BQ25180 and BQ25181 I2C Controlled Linear Battery Chargers Small Form Factor Des PDF | HTML 2022年 6月 10日
User guide BQ2518x EVM User's Guide (Rev. B) 2022年 2月 1日

設計與開發

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開發板

BQ25180EVM — 適用於 1-A 鋰離子 I2C 可編程電源路徑充電器的 BQ25180 評估模組

使用 BQ25180EVM 評估模組 (EVM) 來評估 BQ25180 裝置。BQ25180 裝置是整合式電池充電管理 IC，其中整合了穿戴式裝置最常見的功能：線性充電器、穩壓輸出、計時器手動重設、運送模式、關機模式與進階電源路徑。運作和關機期間的低靜態電流 (IQ) 可最大限度延長電池使用壽命。此裝置支援來自 5 mA 至 1000 mA 的充電電流、3.5 V 至 4.65 V 的電池穩壓。輸入電流限制、充電電流、穩壓 SYS 輸出及其他參數，皆可透過 I2C 介面編程。該電池採用具有三相位的標準鋰離子充電曲線充電：預充電、恒流和恒壓。此裝置也擁有低針腳數，可支援低成本的 PCB 製程。
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。
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