BQ25886
- High-efficiency 2-A, 1.5-MHz switch mode boost charger
- 93.4% Charge efficiency at 5-V adapter, 7.6-V battery, 1-A charge
- Optimized for USB input and 2-cell Li-Ion battery
- Single input to support USB input adapters
- Supports 4.3-V to 6.2-V input voltage range with 20-V absolute maximum input voltage rating
- Input current limit (500 mA to 3.3 A) to support USB2.0, USB3.0 standard adapters
- Integrated USB D+/D- auto-detect USB SDP, CDP, DCP, and non-standard adapters
- Standalone function with PowerPath management
- Highest battery discharge efficiency with 17-mΩ battery discharge MOSFET
- Narrow VDC (NVDC) PowerPath management
- Instant-on works with no battery or deeply discharged battery
- Ideal diode operation in battery supplement mode
- Adjustable charge voltage with VSET pin supports 8.2 V, 8.4 V, 8.7 V, and 8.8 V
- Adjustable charge current with ICHGSET pin supports 100 to 2200 mA
- Adjustable input current limit with ILIM pin
- Input current optimizer (ICO) to maximize input power without overloading adapters
- High integration includes all MOSFETs, current sensing and loop compensation
- High accuracy
- ±0.5% Charge voltage regulation
- ±5% Charge current regulation
- ±7.5% Input current regulation
- Safety
- Battery temperature sensing in charge
- Thermal regulation and thermal shutdown
The BQ25886 is a highly-integrated 2-A boost switch-mode battery charge management and system PowerPath management which enables instant power on and provides accurate termination control device for 2-cell (2s) Li-Ion and Li-polymer battery. The BQ25886 is a standalone solution with PowerPath and OTG.
技術文件
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檢視所有 3 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | BQ25886 Standalone 2-Cell, 2-A Boost-Mode Battery Charger With PowerPath, USB BC1.2 Detection, and USB On-The-Go Boost (OTG) datasheet (Rev. A) | PDF | HTML | 2019年 6月 10日 |
| Technical article | 4 Reasons why you should use a boost charger for 2-cell battery application | PDF | HTML | 2019年 4月 3日 | |
| User guide | BQ25886 QFN boost-mode battery charger evaluation module | 2019年 2月 5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)。
開發板
BQ25886EVM — 具有電源路徑的獨立升壓電池充電器評估模組
A charging 2-cell, 8.4-V battery from a legacy 5-V USB port requires a boost charger. The BQ25886 evaluation module (EVM) is used for the BQ25886, a highly integrated 2-A boosting, 1.5-MHz switch-mode battery charge management with power path for 2s Li-Ion and Li-polymer battery. The (...)
使用指南: PDF
介面轉接器
EV2400 — 適用電池電量 (氣量) 計評估模組的 USB PC 介面板
The EV2400 EVM interface board enables an IBM-compatible or other type PC (with the required driver for its particular platform) to communicate with the Texas Instruments SMBus or I2C interface gas gauges via a Universal Serial Bus (USB) port. In addition to this board, PC software is required to (...)
使用指南: PDF
| 封裝 | 引腳 | 下載 |
|---|---|---|
| VQFN (RGE) | 24 | 檢視選項 |
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
- 資格摘要
- 進行中可靠性監測
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。