BQ25890
- High efficiency 5-A, 1.5-MHz Switch Mode buck charge
- 93% Charge efficiency at 2 A and 91% charge efficiency at 3-A charge current
- Optimize for high voltage input (9 V to 12 V)
- Low power PFM Mode for light-load operations
- USB On-the-Go (OTG) with adjustable output from 4.5 V to 5.5 V
- Selectable 500-kHz and 1.5-MHz Boost Converter with up-to 2.4-A output
- 93% Boost efficiency at 5 V at 1-A output
- Accurate Hiccup Mode overcurent protection
- Single input to support USB input and adjustable high voltage adapters
- Support 3.9-V to 14-V input voltage range
- Input current limit (100 mA to 3.25 A with 50-mA resolution) to support USB2.0, USB3.0 standard and high voltage adapters
- Maximum power tracking by input voltage limit up-to 14 V for wide range of adapters
- Auto detect USB SDP, CDP, DCP, and non-standard adapters (BQ25890)
- Input Current Optimizer (ICO) to maximize input power without overloading adapters
- Resistance Compensation (IRCOMP) from charger output to cell terminal
- Highest battery discharge efficiency with 11-mΩ battery discharge MOSFET up to 9 A
- Integrated ADC for system monitor (voltage, temperature, charge current)
- Narrow VDC (NVDC) power path management
- Instant-on works with no battery or deeply discharged battery
- Ideal diode operation in Battery Supplement Mode
- BATFET Control to support Ship Mode, wake up, and full system reset
- Flexible autonomous and I2C Mode for optimal system performance
- High integration includes all MOSFETs, current sensing and loop compensation
- 12-µA Low battery leakage current to support Ship Mode
- High Accuracy
- ±0.5% Charge voltage regulation
- ±5% Charge current regulation
- ±7.5% Input current regulation
- Safety
- Battery temperature sensing for charge and Boost Mode
- Thermal regulation and thermal shutdown
The BQ25890, BQ25892 are highly-integrated 5-A switch-mode battery charge management and system power path management device for single cell Li-Ion and Li-polymer battery. The devices support high input voltage fast charging. The low impedance power path optimizes switch-mode operation efficiency, reduces battery charging time and extends battery life during discharging phase.
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開發板
BQ25890EVM-664 — BQ25890 完整充電器評估模組
The bq25890 evaluation module (EVM) is a complete charger module for evaluating the highly-integrated switch-mode battery charge management and system power path management device for 1 cell Li-Ion and Li-polymer battery in a wide range of smartphone and tablet applications.
The BQ25890EVM-664 (...)
應用軟體及架構
BQSTUDIO — Battery Management Studio (bqStudio) 軟體
Battery Management Studio (bqStudio) 提供全套的強固工具，可協助評估、設計、配置、測試或使用 TI 電池管理產品的程序。其中包括可提供暫存器及資料記憶體完整存取的功能，包括支援即時觀看、繪圖和記錄、傳送命令的簡易介面、直接低階通訊和 I/O，以及用於配置、校準和執行學習週期的自動化和引導支援，進而產生實用的檔案，以利裝置投入生產。
在 bqStudio 中也支援舊產品，如 bq20xxx 和 bq30xxx。從適當的產品頁面下載特定的評估軟體。此外，您為 bqStudio 下載的最新化學更新程式需要 bqStudio 的更新版。
在 bqStudio 中也支援舊產品，如 bq20xxx 和 bq30xxx。從適當的產品頁面下載特定的評估軟體。此外，您為 bqStudio 下載的最新化學更新程式需要 bqStudio 的更新版。
驅動程式或資料庫
BQ25890SW-LINUX — 適用於 BQ25890 的 Linux 驅動程式
The Linux driver supports the BQ25890 5-A fast charger. The Linux driver supports communication through the I2C bus and interfaces with the power supply sub-system.
Linux mainline status
Available in Linux mainline: Yes
Available through git.ti.com: N/A
Linux source Files
The files associated with this (...)
參考設計
PMP15011 — 適用於由單節鋰離子電池供電之終端設備的串級式雙充電器參考設計
Smartphones and other handheld equipment with 3AHr+ 1S Li-Ion batteries require 3-A+ charger current for fast charging. Parallel chargers allow for high charge currents, resulting in shorter charge times, while distributing the heat losses across the end equipment PCB, thereby preventing (...)
參考設計
TIDA-00818 — 行動銷售點 (mPOS) 電源參考設計
The TIDA-00818 is mobile point of sale (mPOS) reference design features a 1S1P Li-Ion battery architecture to reduce system size and cost. Integrated load switches are used to reduce standby power consumption and maximize battery life to enable the single-cell architecture. A USB Type-C charging (...)
參考設計
TIDA-01582 — 適用於 USB 電力傳輸可編程電源供應的開關電容快速充電參考設計
The goal of this reference design is to show the total system performance when using the switched-cap fast charge topology in a smart phone application. The system includes using a smart wall adapter that supports USB Power Delivery (PD) Programmable Power Supply (PPS) specifications to reduce (...)
參考設計
TIDA-00590 — 雙電池充電器 IC 參考設計尺寸 (以 Cascode 配置連接)
Higher capacity 1S batteries in the latest smartphones and tablets need higher charge currents to charge faster. With 12-V power sources, two 5-A battery charger ICs connected in cascode, parallel configuration can provide more than 5-A charging current. In addition, the heat from the (...)
電路圖: PDF
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|---|---|---|
| WQFN (RTW) | 24 | 檢視選項 |
訂購與品質
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