計算工具
BQ24616
- Battery Thermistor Sense for JEITA Guideline
Compatible Charger - 600-kHz NMOS-NMOS Synchronous Buck
Converter - Stand-Alone Charger Support for Li-Ion or Li-
Polymer - 5-V–28-V VCC Input Operating Range and
Supports 1 to 6 Battery Cells - Up to 10-A Charge Current and Adapter Current
- High-Accuracy Voltage and Current Regulation
- ±0.5% Charge Voltage Accuracy
- ±3% Charge Current Accuracy
- ±3% Adapter Current Accuracy
- Integration
- Automatic System Power Selection From
Adapter or Battery - Internal Loop Compensation
- Internal Soft-Start
- Dynamic Power Management
- Automatic System Power Selection From
- Safety Protection
- Input Overvoltage Protection
- Battery Detection
- Reverse Protection Input FET
- Programmable Safety Timer
- Charge Overcurrent Protection
- Battery Short Protection
- Battery Overvoltage Protection
- Thermal Shutdown
- Status Outputs
- Adapter Present
- Charger Operation Status
- Charge Enable Pin
- 6-V Gate Drive for Synchronous Buck Converter
- 30-ns Driver Dead-Time and 99.5% Maximum
Effective Duty Cycle - 24-Pin, 4-mm × 4-mm QFN Package
- Energy Star Low Quiescent Current Iq
- < 15-µA Off-State Battery Discharge Current
- < 1.5-mA Off-State Input Quiescent Current
The bq2461x device is a highly integrated, Japan Electronic Information Technology Association (JEITA) guideline-compatible, Li-ion or Li-polymer switched-mode battery charge controller. The device offers a constant-frequency synchronous switching PWM controller with high-accuracy charge current and voltage regulation, charge preconditioning, termination, adapter current regulation, and charge status monitoring
The bq2461x charges the battery in three phases: preconditioning, constant current, and constant voltage. Charge is terminated when the current reaches a minimum user-selectable level. A programmable charge timer provides a safety backup. The bq2461x automatically restarts the charge cycle if the battery voltage falls below an internal threshold, and enters a low quiescent current sleep mode when the input voltage falls below the battery voltage.
技術文件
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檢視所有 3 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | bq24616 JEITA Guideline Compatible Stand-Alone Synchronous Switched-Mode Li-Ion or Li-Polymer Battery Charger With System Power Selector and Low Iq datasheet (Rev. C) | PDF | HTML | 2015年 6月 30日 |
| Application note | BQ241xx/BQ246xx Selection of Multi-Cell Standalone Switching Battery Chargers | 2019年 12月 31日 | ||
| User guide | bq2461x/bq2463x (HPA422A) Multi-Cell Synchronous Switch-Mode Charger (Rev. A) | 2010年 7月 27日 |
設計與開發
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開發板
BQ24616EVM — 適用於 BQ24616 獨立同步切換模式鋰離子或鋰聚合物的評估模組
The bq2461x is highly integrated Li-ion or Li-polymer switch-mode battery charge controllers. The bq2463x is highly integrated switch-mode battery charge controllers designed specifically to charge Lithium Phosphate battery chemistries. They offer a constant-frequency synchronous PWM controller (...)
使用指南: PDF
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN (RGE) | 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。