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
The BQ25618EVM is an evaulation module (EVM) used to test the BQ25618 device, a 1.5-A single-cell battery charger optimized for power bank applications in low power portable designs. The OTG reverse synchronous boost operation and forward buck mode operation allows for control over power (...)
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。