BQ24190
- High Efficiency 4.5-A Switch Mode Charger
- 92% Charge Efficiency at 2 A, 90% at 4 A
- Accelerate Charge Time by Battery Path Impedance
Compensation
- Compatible with MaxLife Technology for Faster
Charging When Used in Conjunction With bq27531 - Highest Battery Discharge Efficiency with 12-mΩ
Battery Discharge MOSFET up to 9-A Discharge Current - Single Input USB-compliant/Adapter Charger
- USB Host or Charging Port D+/D- Detection
Compatible to USB Battery Charger Spec 1.2 - 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
- USB Host or Charging Port D+/D- Detection
- 3.9-V to 17-V Input Operating Voltage Range
- Support All Kinds of Adapter with Input
Voltage DPM Regulation
- Support All Kinds of Adapter with Input
- 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
- Instant-on Works with No Battery or Deeply
- 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
- Battery Temperature Sensing and Charging
- 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
The bq24190, bq24192, and bq24192I are 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 solution.
The device supports a wide range of input sources, including standard USB host port, USB charging port and high power DC adapter. To set the default input current limit, the bq24190 detects the input source following the USB battery charging spec 1.2, and the bq24192 and bq24192I take the results from detection circuit in the system, such as USB PHY device. The bq24190,192, and 192I are compliant with USB 2.0 and USB 3.0 power specifications with input current and voltage regulation. Meanwhile, the bq24190, bq24192, and bq24192I meet USB On-the-Go operation power rating specification by supplying 5 V on the VBUS with a current limit up to 1.3 A.
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 source.
The devices initiate and complete 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 bq24190, bq24192, and bq24192I provide various safety features for battery charging and system operation, including dual pack 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. The PG output in the bq24192 and bq24192I indicates if a good power source is present. The INT immediately notifies the host when a fault occurs.
The bq24190, bq24192, and bq24192I are available in a 24-pin, 4.00 × 4.00 mm2 thin VQFN package.
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | bq2419x I2C Controlled 4.5-A Single Cell USB/Adapter Charger with Narrow VDC Power Path Management and USB OTG datasheet (Rev. B) | PDF | HTML | 2014年 12月 29日 |
Application note | Selection of Single-Cell Buck Narrow VDC Switching Battery Chargers | PDF | HTML | 2022年 11月 10日 | |
Application note | USB D+/D- Input Current Limit Detection | PDF | HTML | 2020年 12月 30日 | |
Design guide | bq24190 Calculation Tool | 2015年 8月 19日 | ||
Analog Design Journal | Dynamic power management for faster, more efficient battery charging | 2013年 10月 28日 | ||
User guide | bq24190/2/2i/3/6 and bq24292i EVM (PWR021) (Rev. C) | 2013年 8月 28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)。
BQ2419XEVM — BQ2419X I2C 控制的 4.5A 單芯 USB / 轉接器充電器評估模組
The bq2419x evaluation module (EVM) is a complete charger module for evaluating an I2C-controlled single NVDC-1 charge using the bq2419x devices.
The BQ2419xEVM-021 requires USB Interface Adaptive Evaluation Module “USB-TO-GPIO” for I2C interface. If one is not already available to you (...)
TI-CHARGER-GUI — 適於與 USB2ANY 和電池充電搭配使用的 GUI 軟體評估模組
BQ24190SW-LINUX — 適用於 BQ24190 的 Linux 驅動程式
Linux mainline status
Available in Linux mainline: Yes
Available through git.ti.com: N/A
Linux source files
The (...)
TIDA-00050 — 採用 Impedance Track™ 技術的電池管理解決方案參考設計
TIDA-00035 — I2C 控制的 4.5A 單節 USB/轉接器充電器參考設計
封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
---|---|---|
VQFN (RGE) | 24 | Ultra Librarian |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。