現在提供此產品的更新版本
功能相同，但引腳輸出與所比較的裝置不同
BQ25618
- Single chip solution to charge wearable accessories from adapter or battery
- High-efficiency, 1.5MHz, synchronous switch-mode buck charger
- 95.5% charge efficiency at 0.5A and 94.5% efficiency at 1A
- ±0.5% charge voltage regulation (10mV step)
- I2C programmable JEITA profile of charge voltage, current and temperature thresholds
- Low termination current with high accuracy 20mA±10mA
- Small inductor form factor of 2.5 x 2.0 x 1.0mm3
- Boost mode with output from 4.6V to 5.15V
- 94% boost efficiency at 1A output
- Integrated control to switch between Charge and Boost mode
- PMID_GOOD pin control external PMOS FET for protection against fault conditions
- Single input supporting USB input, high-voltage adapter, or wireless power
- Support 4V to 13.5V input voltage range with 22V absolute max input rating
- Programmable input current limit (IINDPM) with I2C (100mA to 3.2A, 100mA/step)
- Maximum power tracking by input voltage limit (VINDPM) up to 5.4V
- VINDPM threshold automatically tracks battery voltage
- Narrow VDC (NVDC) power path management
- System instant-on with no battery or deeply discharged battery
- Flexible I2C configuration and autonomous charging for optimal system performance
- High integration includes all MOSFETs, current sensing and loop compensation
- Low RDSON 19.5mΩ BATFET to minimize charging loss and extend battery run time
- BATFET control for Ship mode, and full system reset with and without adapter
- 7µA low battery leakage current in Ship mode
- 9.5µA low battery leakage current with system standby
- High accuracy battery charging profile
- ±5% charge current regulation
- ±7.5% input current regulation
- Remote battery sensing to charge faster
- Programmable top-off timer for full battery charging
- Safety Related Certifications:
- IEC 62368-1 CB Certification
The BQ25618/619 integrates charge, boost converter and voltage protection in a single device. It offers the industry’s lowest termination current for switching chargers to charge wearable devices by full battery capacity. The BQ25618/619 best-in-class low quiescent current reduces battery leakage down to 6uA in Ship mode, which conserves battery energy to double the shelf life for the device. The BQ25619 is in a 4mm × 4mm QFN package for easy layout. The BQ25618 is in a 2.0mm × 2.4mm WCSP package for space limited design.
技術文件
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檢視所有 4 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | BQ25618/619 I2C Controlled 1-Cell 1.5A Battery Charger with 20mA Termination and 1A Boost Operation datasheet (Rev. F) | PDF | HTML | 2025年 2月 10日 |
| Application note | High-Efficiency Charging for TWS Using a 2-Pin Interface Application Report (Rev. A) | PDF | HTML | 2023年 5月 16日 | |
| Application note | Selection of Single-Cell Buck Narrow VDC Switching Battery Chargers | PDF | HTML | 2022年 11月 10日 | |
| User guide | BQ25618 BMS024 Evaluation Module | 2019年 9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
BQ25618EVM — 具有終端和 1.2-A 升壓的 I2C 控制 1 芯、1.5 降壓電池充電器評估模組
BQ25618EVM 是用於測試 BQ25618 裝置的評估模組 (EVM)，是一款針對低功耗可攜式設計中的行動電源應用最佳化的 1.5A 單芯電池充電器。OTG 反向同步升壓運作和順向降壓模式運作，允許控制供電到周邊供電設備。
使用指南: PDF
驅動程式或資料庫
BQ256XXSW-LINUX — 適用 BQ256XX 的 Linux 驅動程式
Linux 驅動程式支援 I2C 控制，1 芯，切換模式電池充電管理和系統電源路徑管理 IC 的 BQ256XX 系列。Linux 驅動程式支援透過 I2C 匯流排進行通訊，並介接電源供應器子系統。
Linux 主線路狀態
適用於 Linux 主線路：是
可透過 git.ti.com 獲得：否
Linux 源文件
與此裝置關聯的文件包括：
- drivers/power/supply/bq256xx_charger.c
源文件
drivers/power/supply/bq256xx_charger.c啓用驅動程式支援
使用 "make menuconfig" 配置核心 (或者使用 "make (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| DSBGA (YFF) | 30 | 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。