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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) 6.4 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) 6.4 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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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
模擬設(shè)計(jì)期刊 2Q 2016 Analog Applications Journal Issue 2016年 4月 26日
模擬設(shè)計(jì)期刊 Battery-charging considerations for low-power applications 2016年 4月 26日
應(yīng)用手冊 Selecting the Best bq2407x/23x Single Cell Battery Charger for your Application 2012年 11月 8日
應(yīng)用手冊 MSP430 Based Lithium-Ion Polymer Battery Charging and Gauging Solution Using USB (Rev. A) 2012年 6月 27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

BQ24230EVM — BQ24230 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?，F(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)
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參考設(shè)計(jì)

TIDA-00600 — 用于 CC2530 ZigBee 無線 MCU 的電源和電池管理參考設(shè)計(jì)

TIDA-00600 的主要目的是為同時(shí)需要可充電電池和直流連接器電源的 ZigBee 系統(tǒng)提供一個(gè)成本優(yōu)化的小型電源管理解決方案。TIDA-00600 設(shè)計(jì)為電源管理部門提供測試數(shù)據(jù)、設(shè)計(jì)指南和光繪文件。

此參考設(shè)計(jì)采用 LP5907（具有高 PSRR 和低噪聲的超小型 LDO）和 BQ24230（獨(dú)立式電池充電器）。

設(shè)計(jì)指南: 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(shí)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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