中文
English
CXLB7384开关模式充电管理单电池锂离子电池同步PWM控制器高精度电压电流调节输入电压的动态电源管理IC会自动重新启动充电循环
| 产品型号： | CXLB7384 |
| 产品类型： | 电池充电IC |
| 产品系列： | 单节锂电池充电芯片 |
| 产品状态： | 量产 |
| 浏览次数： | 40 次 |
产品简介
技术参数
| 输入电压范围 (VIN) | V ~ 4.0~6VV |
|---|---|
| 输出电压 (VOUT) | 4.2VV |
| 输出电流 (IOUT) | 1A A |
| 工作频率 | 3MHz |
| 转换效率 | 94% % |
| 封装类型 | WCSP |
| Type | 单节锂电池充电芯片 |
| Charge voltage | 4.0~6V |
| Charge current | 1A |
| Battery type | 4.2V,4.35V |
| Charge method | CC/CV线性模式 |
| Charge status | 多个LED指示 |
| Protection | 过流/过压/过温/过充/短路 |
| Communication | QC2.0 QC3.0 |
| Features | 电池充电IC |
| Application | 单节锂电池充电芯片 |
| Iq | 15uA |
| 电池节数 | 1节锂电池 |
| 精度 | ±1% |
| 充电载止电压 | 充电结束时电压(V):4.2V |
产品详细介绍
目录
7.相关产品
产品概述 返回TOP
The CXLB7384 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 can be programmed through an I 2 C interface. The IC integrates a synchronous PWM controller, power MOSFETs, input current sensing, high‐accuracy current and voltage regulation, and charge termination, into a small WCSP package. The IC charges the battery in three phases: conditioning, constant current and constant voltage. The input current is automatically limited to the value set by the host. Charge is terminated based on battery voltage and user‐selectable minimum current level. A safety timer with reset control provides a safety backup for I 2 C interface. During normal operation, The IC automatically restarts the charge cycle if the battery voltage falls below an internal threshold and automatically enters sleep mode or high impedance mode when the input supply is removed. The charge status can be reported to the host using the I 2 C interface. During the charging process, the IC monitors its junction temperature (TJ) and reduces the charge current once TJ increases to about 125°C. To support USB OTG device, CXLB7384 can provide VBUS (5.05V) by boosting the battery voltage. The IC is available in 20‐pin WCSP package.
产品特点 返回TOP
z Power Up System without Battery
z Charge Faster than Linear Chargers
z High‐Accuracy Voltage and Current Regulation
Input Current Regulation Accuracy: ±5%(100 mA and 500 mA)
Charge Voltage Regulation Accuracy: ±0.5% (25°C), ±1% (0°C to 125°C)Charge Current Regulation Accuracy: ±5%
z Input Voltage Based Dynamic Power Management (VIN DPM)
z Bad Adaptor Detection and Rejection
z Safety Limit Register for Maximum Charge Voltage and Current Limiting
z High‐Efficiency Mini‐USB/AC Battery Charger for Single‐Cell Li‐Ion and Li‐Polymer Battery Packs
z 20‐V Absolute Maximum Input Voltage Rating
z 6.5‐V Maximum Operating Input Voltage
z Built‐In Input Current Sensing and Limiting
z Integrated Power FETs for Up To 1.25‐A Charge Rate
z Programmable Charge Parameters through I 2 C™ Compatible Interface (up to 3.4 Mbps):
Input Current Limit VIN DPM Threshold
Fast‐Charge/Termination Current
Charge Regulation Voltage (3.5 V to 4.44 V)
Low Charge Current Mode Enable/Disable
Termination Enable/Disable
z Synchronous Fixed‐Frequency PWM Controller Operating at 3 MHz With 0% to 99.5% Duty Cycle z Automatic High Impedance Mode for Low Power Consumption
z Robust Protection
Reverse Leakage Protection Prevents Battery Drainage Thermal Regulation and Protection
Input/Output Overvoltage Protection
z Status Output for Charging and Faults
z USB Friendly Boot‐Up Sequence
z Automatic Charging
z Boost Mode Operation for USB OTG
Input Voltage Range (from Battery): 3.2 V to 4.5V
z 2.1 mm x 2 mm 20‐Pin WCSP Package
应用范围 返回TOP
z Mobile and Smart Phones
z M3 Players
z Handheld Devices
技术规格书（产品PDF) 返回TOP
需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！
产品封装图 返回TOP
电路原理图 返回TO
相关芯片选择指南 返回TOP 更多同类产品......
|
Battery Management |
||
|
Part No. |
Package |
Description |
|
SOT23-5 |
0.8A Standalone Linear Li-lon Battery Charger with Thermal Regulation |
|
|
SOP9-PP |
1A Standalone Linear Li-lon Battery Charger with Thermal Regulation |
|
|
WCSP |
Fully Integrated Switch-Mode ChargerWith USB Compliance and USB-OTG Support |
|
用户评论