BQ24180 与 USB 完全兼容的完全集成开关模式单节锂离子充电器
BQ24180 描述
The bq24180 is a compact, flexible, high-efficiency, USB-friendly switch-mode charge management device for single-cell Li-ion and Li-polymer batteries used in a wide range of portable applications. The charge parameters is programmable using an I2C compatible interface. The bq24180 integrates a synchronous PWM controller, power MOSFETs, input current sensing and overvoltage protection, high-accuracy current and voltage regulation, and charge termination, into a small WCSP package.
The bq24180 charges the battery in three phases: conditioning, constant current and constant voltage. Charge current is programmable using the I2C interface. Additionally, the input current can be limited to a host programmable threshold to maintain maximum charge current from current-limited sources, such as USB ports
|
BQ24180 |
| # Series Cells |
1 |
| Charge Current(Max)(A) |
1.55 |
| Charge Status Outputs |
2 |
| Control Topology |
Switchmode |
| Switching Frequency(kHz) |
3000 |
| Primary Charge Termination Method |
Minimum Current |
| Pin/Package |
25DSBGA |
| Vin(Max)(V) |
20 |
| Battery Charge Voltage(V) |
3.5 to 4.44 |
| Optional Functions |
DC Accessory Support |
BQ24180 特性
- Charge Faster than Linear Chargers From Current Limited Input Sources
- High-Accuracy Voltage and Current Regulation
- Input Current Regulation Accuracy: ±5% (100mA, 500mA)
- Charge Voltage Regulation Accuracy: ±0.5% (25°C), ±1% (0–125°C)
- Charge Current Regulation Accuracy: ±5%
- Accessory Power Output (DCOUT)
- Input Voltage Based Dynamic Power Management
- Safety Limit Register for Maximum Charge Voltage and Current Limiting
- High-Efficiency Mini-USB/AC Battery Charger for Single-Cell Li-Ion and Li-Polymer Battery Packs
- 20-V Absolute Maximum and 16.5V Operation Input Voltage Rating
- Built-in Input Current Sensing and Limiting
- Integrated Power FETs for Up to 1.5-A Charge Rate
- Programmable Charge Parameters through I2C compatible Interface (up to 3.4 Mbps)
- Synchronous Fixed-Frequency PWM Controller Operating at 3 MHz With 0% to 99.5% Duty Cycle
- Safety Timer and Software Watchdog
- Reverse Leakage Protection Prevents Battery Drainage
- Thermal Regulation and Protection
- Status Outputs for Charging and Faults
- 25-Pin WCSP Package
- APPLICATIONS
BQ24180 芯片订购指南
| 器件 |
状态 |
价格（美元） |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| BQ24180YFFR |
ACTIVE |
2.20 | 1ku |
DSBGA (YFF) | 25 |
3000 | LARGE T&R |
|
| BQ24180YFFT |
ACTIVE |
2.55 | 1ku |
DSBGA (YFF) | 25 |
250 | SMALL T&R |
|
BQ24180 质量与无铅数据
| 器件 |
环保计划* |
铅/焊球涂层 |
MSL 等级/回流焊峰 |
环保信息与无铅 (Pb-free) |
DPPM / MTBF / FIT 率 |
| BQ24180YFFR |
Green (RoHS & no Sb/Br) |
Call TI |
Level-1-260C-UNLIM |
BQ24180YFFR |
BQ24180YFFR |
| BQ24180YFFT |
Green (RoHS & no Sb/Br) |
Call TI |
Level-1-260C-UNLIM |
BQ24180YFFT |
BQ24180YFFT |
BQ24180 应用技术支持与电子电路设计开发资源下载
- BQ24180 数据资料 dataSheet 下载.PDF
- TI 德州仪器电池管理产品选型与价格 . xls
- 照明和显示屏电源选择指南 (PDF 1427 KB)
- QFN Layout Guidelines (PDF 1279 KB)
- 笔记本电脑指南 (Rev. A) (PDF 2774 KB)
- 全面认识开关型电源中的BUCK-BOOST功率级 (Rev. A)
(PDF 2206 KB)
- PowerPADTM Made Easy (PDF 57 KB)
- 标准线性产品交叉参考 (Rev. D)
(PDF 1058 KB)
- 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
- 所选封装材料的热学和电学性质 (PDF 645 KB)
- 高速数据转换 (PDF 1967 KB)
BQ24180 相关工具
| 名称 |
型号 |
公司 |
工具/软件类型 |
| Evaluation Module for bq24180 |
BQ24180EVM |
Texas Instruments |
开发电路板/EVM |
| BQ24180 评估模块 |
BQ24180EVM-004 |
Texas Instruments |
开发电路板/EVM |