BQ25895
- 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
- Boost Mode operation with adjustable output from 4.5 V to 5.5 V
- Selectable 500-KHz to 1.5-MHz boost converter with up to 3.1-A output
- 93% Boost efficiency at 5 V at 1 A output
- Integrated control to switch between charge and Boost Mode
- 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 14V for wide range of adapters
- Auto detect USB SDP, CDP, DCP, and Non-standard Adapters
- 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 BQ25895 is a 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
BQ25895EVM-664 — BQ25895 完整充電器評估模組
The bq25895 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 BQ25895EVM-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
TIDA-01556 — 適用於低功耗太陽能電池充電的最大功率點追蹤演算法參考設計
此參考設計為採用太陽能面板輸入之單芯電池充電系統的基本最大功率點追蹤演算法軟體實作。此設計使用充電器的整合式功能，透過簡單的 I²C 型控制機制實現最大充電電流，進而省去對額外電路和複雜韌體的需求。
參考設計
TIDA-01182 — 具有自動音訊控制 1S1P BMS 的可攜式音訊放大器參考設計
高性能 10W（每個喇叭 5W）可攜式音訊放大器，整合完整的電池管理解決方案 (BMS)，包含充電器、電量計及 1S1P 18650 2400mAh 鋰電池保護功能，專為 D 類音訊放大器設計。透過高效電源調節器、D 類放大器與完善的電池管理系統，可顯著延長設備運作時間。
參考設計
PMP4451 — 具有輸入與輸出快速充電器的 USB-C DFP+ USB-A 行動電源參考設計
This is a power bank reference design with a USB type C DFP plus a USB type A port supporting high voltage discharging. Fast charger input is also supported to save more charging time. It can detect the input port attach/detach automatically, as well as the output ports.
參考設計
PMP4496 — 具有快速充電器輸入的 USB-C DRP 行動電源參考設計
PMP4496 is a power bank reference design with a single USB type C dual role port (DRP). It can perform as a SINK or SOURCE. Role is automatically determined according to the external device attached. Fast charger input is also supported to save more charging time.
參考設計
PMP11536 — 具有快速充電器輸入的 USB-C DFP + 5V2A 行動電源參考設計
PMP11536 is a power bank reference design with a USB typc C DFP plus a USB type A port employing the boost mode of a Maxcharger. Fast charger input is also supported to save more charging time. It can detect the input port attach/detach events automatically, as well as the output ports.
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| WQFN (RTW) | 24 | Ultra Librarian |
訂購與品質
內含資訊：
- 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
內含資訊：
- 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。