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I2C 控制 4.5A 单节 USB / 适配器充电器
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bq24190、bq24192 和 bq24192I 是高度集成的开关模式电池管理和系统电源路径管理器件，适用于各类、平板电脑和其他便携式设备的单节锂离子和锂聚合物电池。
它的低阻抗电源路径对开关模式运行效率进行了优化、减少了电池充电时间并延长了放电阶段的电池寿命。具有充电和系统设置的 I2C 串行接口使得此器件成为一个真正地灵活解决方案。
此器件支持宽范围的输入源，其中包括标准 USB 主机端口，USB 充电端口和高功率 DC 适配器。为了设定默认输入电流限值，bq24190 根据 USB 电池充电规范 1.2 检测输入源，而 bq24192 和 bq24192I 从系统检测电路（如 USB PHY 器件）中获取结果。bq2 和 192I 符合 USB 2.0 和 USB 3.0 电源规范，具有输入电流和电压调节功能。同时，bq24190、bq24192 和 bq24192I 具有高达 1.3A 的限流能力，能够为 VBUS 提供 5V 电压，符合 USB On-the-Go (OTG) 运行功率额定值规范。
电源路径管理将系统电压调节为稍稍高于电池电压，但是又不会下降到低于 3.5V 最小系统电压（可编程）。借助于这个特性，即使在电池电量完全耗尽或者电池被拆除时，系统也能保持运行。当达到输入电流限值或电压限值时，电源路径管理自动将充电电流减少为 0。随着系统负载持续增加，电源路径在满足系统电源需求之前将电池放电。这个补充模式运行防止输入源过载。
此器件在无需软件控制情况下启动并完成一个充电周期。它自动检测电池电压并通过三个阶段为电池充电：预充电、恒定电流和恒定电压。在充电周期的末尾，当充电电流低于在恒定电压阶段中预设定的限值时，充电器自动终止。当整个电池下降到低于再充电阈值时，充电器将自动启动另外一个充电周期。
bq24190、bq24192 和 bq24192I 提供针对电池充电和系统运行的多种安全 特性， 其中包括两组负温度系数热敏电阻监视、充电安全定时器和过压/过流保护。当结温超过 120&C（可设定）时，热调节减少充电电流。
STAT 输出报告充电状态和任何故障条件。bq24192 和 bq24192I 中的 PG 输出指示电源是否正常。 当故障发生时，INT 会立即通知主机。
bq24190、bq24192 和 bq24192I 采用 24 引脚、4.00mm x 4.00mm2 超薄型四方扁平无引线 (VQFN) 封装。
高效 4.5A 开关模式充电器
2A 充电电流下的充电效率达 92%；4A 充电电流下的充电效率达 90% 通过电池路径阻抗补偿缩短充电时间
兼容 MaxLife 技术，与 bq27531 搭配使用时可实现快速充电 借助 12mΩ 电池放电金属氧化物半导体场效应晶体管 (MOSFET) 实现最高电池放电效率，放电电流高达 9A 单输入 USB 兼容/适配器充电器与 USB 电池充电器技术规格 1.2 兼容的 USB 主机或充电端口 D+/D- 检测 输入电压和电流限制支持 USB 2.0 和 USB 3.0 输入电流限值：100mA、150mA、500mA、900mA、1.2A、1.5A、2A 和 3A
输入工作电压范围：3.9V 至 17V通过输入电压动态电源管理 (DPM) 调节功能支持所有类型的适配器
USB OTG 5V/1.3A 同步升压转换器操作
5V/1A 条件下的升压效率达 93%
窄 VDC (NVDC) 电源路径管理
与无电池或深度放电电池工作时可瞬时接通 电池管理模式中的理想二极管运行
薄型电感的开关频率为 1.5MHz 具有或不具有主机管理的自主电池充电电池充电使能
电池充电预调节
充电终止和再充电
高精度（0&C 至 125&C）充电电压调节范围为 &0.5% 充电电流调节范围为 &7% 输入电流调节范围为 &7.5% 升压模式下输出调节范围 &2%
高集成电源路径管理 同步开关 MOSFET 集成电流感测 阴极负载二极管 内部环路补偿
安全性电池温度感测和充电安全定时器
热调节和热关断
输入系统过压保护
MOSFET 过流保护
针对 LED 或主机处理器的充电状态输出 低电池泄漏电流并支持关闭模式 4.00mm x 4.00mm 紧凑型超薄四方扁平无引线 (VQFN)-24 封装
平板电脑和智能手机
便携式音频扬声器 便携式媒体播放器 互联网器件
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Number of Series Cells
Cell Chemistry
Battery Charge Voltage
Battery Charge Voltage
Charge Current
Control Interface
Control Topology
Operating Temperature Range
Pin/Package
Operating Vin
Operating Vin
Absolute Vin (safety rating)
Li-Ion/Li-Polymer
Li-Ion/Li-Polymer
Li-Ion/Li-Polymer
Li-Ion/Li-Polymer
Li-Ion/Li-Polymer
Li-Ion/Li-Polymer
Li-Ion/Li-Polymer
Power Path
Temp Monitoring (Thermistor Pin)
Power Path
Temp Monitoring (Thermistor Pin)
Power Path
Temp Monitoring (Thermistor Pin)
JEITA BAT Temp Monitoring (Thermistor Pin)
Power Path
Temp Monitoring (Thermistor Pin)
Integrated FET
Power Path
Temp Monitoring (Thermistor Pin)
Thermal Regulation
Power Path
Temp Monitoring (Thermistor Pin)
Thermal Regulation
Power Path
Temp Monitoring (Thermistor Pin)
Thermal Regulation
USB Detection
Standalone (RC-Settable)
Standalone (RC-Settable)
Standalone (RC-Settable)
Standalone (RC-Settable)
Standalone (RC-Settable)
Standalone (RC-Settable)
Switch-Mode Buck
Switch-Mode Buck
Switch-Mode Buck
Switch-Mode Buck
Switch-Mode Buck
Switch-Mode Buck
Switch-Mode Buck
相关终端应用 (1)
特色工具和软件
BQ2419X 评估模块
(评估模块和开发板)
用于 BQ24190 的 Linux 驱动程序
采用 Impedance Track™ 技术的电池管理解决方案参考设计
I2C 控制 4.5A 单节 USB/适配器充电器参考设计
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资源类型：典型应用电路图　　时间： 09:41:12.0　　　1413 浏览　　　0 下载
资源类型：典型应用电路图
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元器件类别：
元器件型号：BQ24196
品牌：TI[Texas Inst]
应用分类：
是否量产和验证：未知
设计工具：
功能描述：2C Controlled 2.5A Single Cell USB/Adapter Charger With Narrow VDC Power Path Management and USB OTG.FEATURES:o High Efficiency 2.5A Switch Mode Charger&– 92% Charge Efficiency at 2Ao Highest Battery Discharge Efficiency with 12mΩ Battery Discharge MOSFET up to 9A Discharge Currento Single Input USB-compliant/Adapter Charger&– Input Voltage and Current Limit Supports USB2.0 and USB 3.0&– Input Current Limit: 100mA, 150mA, 500mA, 900mA, 1.2A, 1.5A, 2A and 3Ao 3.9V–17V Input Operating Voltage Range&– Support All Kinds of Adapter with Input Voltage DPM Regulationo USB OTG 5V at 1.3A Synchronous Boost Converter Operation&– 93% 5V Boost Efficiency at 1Ao Narrow VDC (NVDC) Power Path Management&– Instant-on Works with No Battery or Deeply Discharged Battery&– Ideal Diode Operation in Battery Supplement Modeo 1.5MHz Switching Frequency for Low Profile Inductoro Autonomous Battery Charging with or without Host Management&– Battery Charge Enable&– Battery Charge Preconditioning&– Charge Termination and Rechargeo High Accuracy (0°C to 125°C)&– ±0.5% Charge Voltage Regulation&– ±7% Charge Current Regulation&– ±7.5%& Input Current Regulation&– ±2% Output Regulation in Boost Mode o High Integration&– Power Path Management&– Synchronous Switching MOSFETs&– Integrated Current Sensing&– Bootstrap Diode&– Internal Loop Compensationo Safety&– Battery Temperature Sensing and Charging Safety Timer&– Thermal Regulation and Thermal Shutdown&– Input System Over-Voltage Protection&– MOSFET Over-Current Protectiono Charge Status Outputs for LED or Host Processoro Low Battery Leakage Current and Support Shipping Modeo 4mm x 4mm QFN-24 Package
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&资源说明：PDF/图片 电路图、原理图文件，仅供参考。
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财富值:1750
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留言内容：红米note3 R9 充电IC BQ2 M 2
还好还好还好还好好很好好好好
颜色分类:BQ24296/M（原装非翻新）
5星卖家，发货神速，东西完美！
颜色分类:BQ24196 全新
好用一个就ok
颜色分类:BQ24296/M（原装非翻新）
颜色分类:BQ24296/M（原装非翻新）
一个搞定 很好
颜色分类:BQ24296M（原装非翻新）
到货速度非常快，商品完好无损，派件员态度很好
质量非常好，与卖家描述的完全一致，非常满意
颜色分类:BQ24296M植锡网
东西不错啊一个就装好了
颜色分类:BQ24296M植锡网
质量挺好的一个就ok了
颜色分类:BQ24296M（原装非翻新）
非常好 一只搞好
颜色分类:BQ24192H 全新原装
一个就搞好!好评
颜色分类:BQ24196 全新データシート
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関連アプリケーション
The bq24196 is highly-integrated switch-mode battery charge management and
system power path management devices for single cell Li-Ion and Li-polymer battery in a wide range
of tablet and other portable devices.
Its low impedance power path optimizes switch-mode operation efficiency, reduces battery
charging time and extends battery life during discharging phase. The I2C
serial interface with charging and system settings makes the device a truly flexible
The device supports a wide range of input sources, including standard
USB host port, USB charging port and high power DC adapter. The bq24196 takes the result from
detection circuit in the system, such as USB PHY device. The bq24196 is compliant with USB 2.0 and
USB 3.0 power spec with input current and voltage regulation. Meanwhile, the bq24196 meets USB
On-the-Go operation power rating specification by supplying 5 V on VBUS with current limit up to
The power path management regulates the system slightly above battery voltage but does
not drop below 3.5-V minimum system voltage (programmable). With this feature, the system maintains
operation even when the battery is completely depleted or removed. When the input current limit or
voltage limit is reached, the power path management automatically reduces the charge current to
zero. As the system load continues to increase, the power path discharges the battery until the
system power requirement is met. This supplement mode operation prevents overloading the input
The device initiates and completes a charging cycle without software
control. It automatically detects the battery voltage and charges the battery in three phases:
pre-conditioning, constant current and constant voltage. At the end of the charging cycle, the
charger automatically terminates when the charge current is below a preset limit in the constant
voltage phase. When the full battery falls below the recharge threshold, the charger will
automatically start another charging cycle.
The device provides various safety features for battery charging and
system operation, including negative thermistor monitoring, charging safety timer and
over-voltage/over-current protections. The thermal regulation reduces charge current when the
junction temperature exceeds 120&C (programmable).
The STAT output reports the charging status and any fault conditions.
output in the bq24196 indicates if a good power source is present. The INT immediately
notifies the host when a fault occurs.
The bq24196 is
available in a 24-pin, 4.00 & 4.00
mm2 thin VQFN package.
High Efficiency 2.5-A Switch Mode Charger 92% Charge Efficiency at 2 A Highest Battery Discharge Efficiency with 12-mΩ Battery Discharge MOSFET up to 9-A Discharge Current Single Input USB-compliant/Adapter Charger Input Voltage and Current Limit Supports USB2.0 and USB3.0 Input Current Limit: 100 mA, 150 mA, 500 mA, 900 mA, 1.2 A, 1.5 A, 2 A and 3 A 3.9-V to 17-V Input Operating Voltage Range Support All Kinds of Adapter with Input Voltage DPM Regulation USB OTG 5 V at 1.3-A Synchronous Boost Converter Operation
93% 5-V Boost Efficiency at 1 A Narrow VDC (NVDC) Power Path Management
Instant-on Works with No Battery or Deeply Discharged Battery Ideal Diode Operation in Battery Supplement Mode 1.5-MHz Switching Frequency for Low Profile Inductor Autonomous Battery Charging with or without Host Management Battery Charge Enable Battery Charge Preconditioning Charge Termination and Recharge High Accuracy (0&C to 125&C) &0.5% Charge Voltage Regulation &7% Charge Current Regulation &7.5% Input Current Regulation &2% Output Regulation in Boost Mode High Integration Power Path Management Synchronous Switching MOSFETs Integrated Current Sensing Bootstrap Diode Internal Loop Compensation Safety Battery Temperature Sensing and Charging Safety Timer Thermal Regulation and Thermal Shutdown Input System Over-Voltage Protection MOSFET Over-Current Protection Charge Status Outputs for LED or Host Processor Low Battery Leakage Current and Support Shipping Mode 4.00 mm & 4.00 mm VQFN-24 Package
詳細を表示
Number of Series Cells
Cell Chemistry
Battery Charge Voltage
Battery Charge Voltage
Charge Current
Control Interface
Control Topology
Operating Temperature Range
Pin/Package
Operating Vin
Operating Vin
Absolute Vin (safety rating)
Li-Ion/Li-Polymer
Li-Ion/Li-Polymer
Li-Ion/Li-Polymer
Li-Ion/Li-Polymer
Li-Ion/Li-Polymer
Li-Ion/Li-Polymer
Li-Ion/Li-Polymer
Integrated FET
Power Path
Temp Monitoring (Thermistor Pin)
Thermal Regulation
Power Path
Temp Monitoring (Thermistor Pin)
Power Path
Temp Monitoring (Thermistor Pin)
Power Path
Temp Monitoring (Thermistor Pin)
JEITA BAT Temp Monitoring (Thermistor Pin)
Power Path
Temp Monitoring (Thermistor Pin)
Power Path
Temp Monitoring (Thermistor Pin)
Thermal Regulation
Power Path
Temp Monitoring (Thermistor Pin)
Thermal Regulation
USB Detection
Standalone (RC-Settable)
Standalone (RC-Settable)
Standalone (RC-Settable)
Standalone (RC-Settable)
Standalone (RC-Settable)
Standalone (RC-Settable)
Switch-Mode Buck
Switch-Mode Buck
Switch-Mode Buck
Switch-Mode Buck
Switch-Mode Buck
Switch-Mode Buck
Switch-Mode Buck
主要ツールとソフトウェア
BQ2419X 評価基板
(評価モジュールと評価ボード)
BQ24196 のツール/ソフトウェアを全て表示