BQ25820
- Wide input voltage operating range: 4.4V to 70V
- Synchronous buck charge controller with NFET drivers
- Adjustable switching frequency from 200kHz to 600kHz
- Optional synchronization to external clock
- Integrated loop compensation with soft start
- Optional gate driver supply input for optimized efficiency
- Bidirectional converter operation (Reverse Mode) supporting USB-PD Extended Power Range (EPR)
- Adjustable input voltage (VAC) regulation from 3.3V to 65V with 20mV/step
- Adjustable input current regulation (RAC_SNS) from 400mA to 20A with 50mA/step using 5mΩ resistor
- Direct power path management for highest efficiency to power system
- System power selection from adapter or battery
- Dynamic power management
- All N-channel FET drivers
- High accuracy
- ±0.5% charge voltage regulation
- ±3% charge current regulation
- ±3% input current regulation
- I2C controlled for optimal system performance with resistor-programmable option
- Hardware adjustable input and output current limits
- Integrated 16-bit ADC for voltage, current, and temperature monitoring
- High safety integration
- Adjustable input overvoltage and undervoltage protection
- Overvoltage and overcurrent protection
- Thermal shutdown
- Status outputs
- Adapter present status (PG)
- Operation status
- Package
- 36-pin 5mm × 6mm QFN
The BQ25820 is a wide input voltage, switched-mode buck Li-Ion, Li-polymer, or LiFePO4 battery charge controller with direct power path control. The device offers high-efficiency battery charging over a wide voltage range with accurate charge current and charge voltage regulation, in addition to automatic charge preconditioning, termination, and charge status indication. The device integrates all the loop compensation for the buck converter, thereby providing a high density solution with ease of use. In reverse mode, the device draws power from the battery and regulates the SYS terminal voltage.
技術文件
找不到結果。請清除您的搜尋條件,然後再試一次。
檢視所有 2 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
BQ25820EVM — BQ25820 評估模組
BQ25820EVM 評估模組 (EVM) 是適用於 BQ25820 IC 的評估系統。BQ25820 IC 是一款具有直接電源路徑控制功能的降壓電池充電控制器。BQ25820 具有 4.2V 至 70V 的廣泛輸入範圍、最高 70V 的廣泛輸出電壓範圍,以及雙向功能。BQ25820EVM 的最大輸入與輸出為 55V,最大充電電流為 10A。
封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
---|---|---|
VQFN (RRV) | 36 | 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。