可提供此產(chǎn)品的更新版本

功能與比較器件相同，但引腳排列有所不同
BQ25185 正在供貨 具有電源路徑和太陽能輸入支持的單芯 1A 獨(dú)立線性電池充電器 Higher charge current and wider Vin range option.
功能與比較器件相似
BQ21061 正在供貨 具有 10nA 運(yùn)輸模式、電源路徑、穩(wěn)定系統(tǒng)電壓和 LDO 的 500mA 單節(jié)電池線性充電器 This product is a 500-mA 1-cell I2C linear charger with 10-nA IQ, power path and a LDO

產(chǎn)品詳情

Rating Catalog Number of series cells 1 Cell chemistry Li-Ion/Li-Polymer Charge current (max) (A) 0.5 Features BAT temp thermistor monitoring (hot/cold profile), Input OVP, Power Path, VINDPM (Input voltage threshold to maximize adaptor power) Vin (min) (V) 4.35 Vin (max) (V) 10.2 Absolute max Vin (max) (V) 28 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) 0.5 Features BAT temp thermistor monitoring (hot/cold profile), Input OVP, Power Path, VINDPM (Input voltage threshold to maximize adaptor power) Vin (min) (V) 4.35 Vin (max) (V) 10.2 Absolute max Vin (max) (V) 28 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 (RGT) 16 9 mm2 3 x 3
  • Fully Compliant USB Charger
    • Selectable 100-mA and 500-mA Maximum Input Current
    • 100-mA Maximum Current Limit Ensures Compliance to USB-IF Standard
    • Input-based Dynamic Power Management (VIN- DPM) for Protection Against Poor USB Sources
  • 28-V Input Rating With Overvoltage Protection
  • Integrated Dynamic Power-Path Management (DPPM) Function Simultaneously and Independently Powers the System and Charges the Battery
  • Supports up to 500-mA Charge Current With Current Monitoring Output (ISET)
  • Programmable Input Current Limit up to 500?mA for Wall Adapters
  • Programmable Termination Current (bq24232)
  • Programmable Precharge and Fast-Charge Safety Timers
  • Reverse Current, Short-Circuit, and Thermal Protection
  • NTC Thermistor Input
  • Proprietary Start-Up Sequence Limits Inrush Current
  • Status Indication – Charging/Done, Power Good
  • Small 3 mm × 3 mm 16-Lead QFN Package
  • Fully Compliant USB Charger
    • Selectable 100-mA and 500-mA Maximum Input Current
    • 100-mA Maximum Current Limit Ensures Compliance to USB-IF Standard
    • Input-based Dynamic Power Management (VIN- DPM) for Protection Against Poor USB Sources
  • 28-V Input Rating With Overvoltage Protection
  • Integrated Dynamic Power-Path Management (DPPM) Function Simultaneously and Independently Powers the System and Charges the Battery
  • Supports up to 500-mA Charge Current With Current Monitoring Output (ISET)
  • Programmable Input Current Limit up to 500?mA for Wall Adapters
  • Programmable Termination Current (bq24232)
  • Programmable Precharge and Fast-Charge Safety Timers
  • Reverse Current, Short-Circuit, and Thermal Protection
  • NTC Thermistor Input
  • Proprietary Start-Up Sequence Limits Inrush Current
  • Status Indication – Charging/Done, Power Good
  • Small 3 mm × 3 mm 16-Lead QFN Package

The bq2423x series of devices are highly integrated Li-ion linear chargers and system power-path management devices targeted at space-limited portable applications. The devices operate from either a USB port or ac adapter and support charge currents between 25 mA and 500 mA. The high-input-voltage range with input overvoltage protection supports low-cost, unregulated adapters. The USB input current limit accuracy and start-up sequence allow the bq2423x to meet USB-IF inrush current specification. Additionally, the input dynamic power management (VIN-DPM) prevents the charger from crashing poorly designed or incorrectly configured USB sources.

The bq2423x features dynamic power-path management (DPPM) that powers the system while simultaneously and independently charging the battery. The DPPM circuit reduces the charge current when the input current limit causes the system output to fall to the DPPM threshold, thus supplying the system load at all times while monitoring the charge current separately. This feature reduces the number of charge and discharge cycles on the battery, allows for proper charge termination, and enables the system to run with a defective or absent battery pack. Additionally, this enables instant system turn-on even with a totally discharged battery. The power-path management architecture also permits the battery to supplement the system current requirements when the adapter cannot deliver the peak system currents, enabling the use of a smaller adapter.

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 the 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 input current limit and charge current are programmable using external resistors.

The bq2423x series of devices are highly integrated Li-ion linear chargers and system power-path management devices targeted at space-limited portable applications. The devices operate from either a USB port or ac adapter and support charge currents between 25 mA and 500 mA. The high-input-voltage range with input overvoltage protection supports low-cost, unregulated adapters. The USB input current limit accuracy and start-up sequence allow the bq2423x to meet USB-IF inrush current specification. Additionally, the input dynamic power management (VIN-DPM) prevents the charger from crashing poorly designed or incorrectly configured USB sources.

The bq2423x features dynamic power-path management (DPPM) that powers the system while simultaneously and independently charging the battery. The DPPM circuit reduces the charge current when the input current limit causes the system output to fall to the DPPM threshold, thus supplying the system load at all times while monitoring the charge current separately. This feature reduces the number of charge and discharge cycles on the battery, allows for proper charge termination, and enables the system to run with a defective or absent battery pack. Additionally, this enables instant system turn-on even with a totally discharged battery. The power-path management architecture also permits the battery to supplement the system current requirements when the adapter cannot deliver the peak system currents, enabling the use of a smaller adapter.

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 the 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 input current limit and charge current are programmable using external resistors.
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技術(shù)文檔

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類型 標(biāo)題 下載最新的英語版本 日期
* 數(shù)據(jù)表 bq2423x USB-Friendly Lithium-Ion Battery Charger And Power-Path Management IC 數(shù)據(jù)表 (Rev. J) PDF | HTML 2017年 4月 8日
應(yīng)用手冊 Configuring Standalone Linear Power Path Chargers (Rev. A) PDF | HTML 2020年 4月 6日
應(yīng)用手冊 BQ2423X external NTC control reference design 2019年 3月 22日
應(yīng)用手冊 Dynamic Power-Path Mgmt & Dynamic Power Mgmt (Rev. A) 2018年 5月 1日
用戶指南 bq24072/3/4/5/9(T) and bq24230/2 1.5-A Single-Chip Li-Ion (Rev. E) 2017年 1月 3日
模擬設(shè)計(jì)期刊 Battery-charging considerations for low-power applications 2016年 4月 26日
產(chǎn)品概述 Battery Management Solutions for Wearable and Fitness Devices (Rev. C) 2014年 8月 18日
更多文獻(xiàn)資料 將符合 Qi 標(biāo)準(zhǔn)的無線電源解決方案應(yīng)用于低功耗可佩戴產(chǎn)品 英語版 2014年 6月 6日
應(yīng)用手冊 Selecting the Best bq2407x/23x Single Cell Battery Charger for your Application 2012年 11月 8日

設(shè)計(jì)和開發(fā)

如需其他信息或資源，請點(diǎn)擊以下任一標(biāo)題進(jìn)入詳情頁面查看（如有）。

評估板

BQ24232EVM — BQ24232 評估模塊

本用戶指南介紹了 bq24072/3/4/5 和 bq24320/2 (bqTiny-III™) 評估模塊 (EVM)。該 EVM 為使用 bq24072/3/4/5 和 bq24320/2 產(chǎn)品系列的便攜式應(yīng)用的充電管理和系統(tǒng)電源解決方案的性能評估提供了便捷方法。現(xiàn)已推出經(jīng)過完整設(shè)計(jì)和測試的模塊。該充電器旨在為使用直流電源的單節(jié)鋰離子或鋰聚合物應(yīng)用（查看數(shù)據(jù)表以選擇合適器件）的系統(tǒng)或充電器提供 1.5A 的連續(xù)電流。該充電器出廠設(shè)計(jì)為提供 0.9A 的充電電流。雖然該 EVM 被設(shè)計(jì)成獨(dú)立的評估模塊，但也可以通過連接器和接頭與系統(tǒng)和主機(jī)相連。

用戶指南: PDF
TI.com 上無現(xiàn)貨
光繪文件

Linear Charger NTC Calculator

SLUC670.ZIP (350 KB)
下載
參考設(shè)計(jì)

TIDA-01012 — 無線物聯(lián)網(wǎng)、低功耗 Bluetooth?、4? 位、100kHz 真正 RMS 數(shù)字萬用表

許多產(chǎn)品現(xiàn)在通過物聯(lián)網(wǎng) (IoT) 進(jìn)行連接，包括數(shù)字萬用表 (DMM) 等測試設(shè)備。? 借助德州儀器 (TI) 的 SimpleLink? 超低功耗無線微控制器 (MCU) 平臺，TIDA-01012 參考設(shè)計(jì)展示了一款具備連接功能的 4? 位、100kHz 真正 RMS DMM，其支持 Bluetooth? 低功耗連接、NFC 藍(lán)牙配對，以及由 TI 的 CapTIvate? 技術(shù)實(shí)現(xiàn)的自動喚醒功能。

?
設(shè)計(jì)指南: PDF
原理圖: PDF
參考設(shè)計(jì)

TIDA-01014 — 適用于低功耗工業(yè)物聯(lián)網(wǎng)現(xiàn)場計(jì)量場景的增強(qiáng)型高精度電池電量監(jiān)測計(jì)參考設(shè)計(jì)

物聯(lián)網(wǎng) (IoT) 變革持續(xù)推動各類應(yīng)用與儀器的高效連接，為電池供電、大規(guī)模極低功耗傳感器的部署創(chuàng)造條件。  借助 TI 的高級傳感器和低功耗連接器件等新技術(shù)，推動這些儀器向電池供電無線系統(tǒng)轉(zhuǎn)型，從而顯著降低成本、改善部署、提高可靠性、性能并降低復(fù)雜性。

在德州儀器 (TI) 的 SimpleLink? 超低功耗無線微控制器 (MCU) 平臺的支持下，TIDA-01014 參考設(shè)計(jì)利用 TIDA-01012無線 DMM 參考設(shè)計(jì)，來演示 bq27426 在提升電池管理系統(tǒng)電量計(jì)性能及優(yōu)化功耗方面的應(yīng)用。TIDA-01014 是一款具備無線連接功能的 4? 位、100kHz 真有效值 (RMS) (...)

設(shè)計(jì)指南: PDF
原理圖: PDF
參考設(shè)計(jì)

TIDA-00266 — ERM 和 LRA 觸覺參考設(shè)計(jì)，具有 Bluetooth® 低能耗遠(yuǎn)程

該參考設(shè)計(jì)采用帶有 Immersion 許可集成效果庫的 DRV2605 ERM 和 LRA 觸覺驅(qū)動器。  該電路板包含一個線性諧振器 (LRA) 并由 iOS 應(yīng)用借助 CC2541 通過 Bluetooth? 低能耗進(jìn)行控制。  該板可用作原型設(shè)計(jì)并將觸覺集成到任何應(yīng)用類型，包括手表、健身追蹤器、可穿戴產(chǎn)品、便攜式醫(yī)療設(shè)備、HMI 或任何需要觸摸反饋的應(yīng)用。  此外，該板可通過 iOS 應(yīng)用進(jìn)行遠(yuǎn)程控制。  該板可快速輕松地將觸覺集成于一切應(yīng)用。
測試報(bào)告: PDF
原理圖: PDF
封裝 引腳 CAD 符號、封裝和 3D 模型
VQFN (RGT) 16 Ultra Librarian

訂購和質(zhì)量

包含信息：
  • RoHS
  • REACH
  • 器件標(biāo)識
  • 引腳鍍層/焊球材料
  • MSL 等級/回流焊峰值溫度
  • MTBF/時基故障估算
  • 材料成分
  • 鑒定摘要
  • 持續(xù)可靠性監(jiān)測
包含信息：
  • 制造廠地點(diǎn)
  • 封裝廠地點(diǎn)

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