
单电池恒流恒压线性充电器CXLB7257 CXLB7257B可编程充电电流700毫安自动充电2.9V涓流充电阈值单4.22V电池锂离子电池充电器控制器
| 产品型号: | CXLB7257 |
| 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: | 35 次 |
产品简介
技术参数
| 输入电压范围 (VIN) | V ~ 4.7V ~ 6VV |
|---|---|
| 输出电压 (VOUT) | 4.22VV |
| 输出电流 (IOUT) | 1AA |
| 工作频率 | 3MHz |
| 转换效率 | 94% % |
| 封装类型 | SOP-8L |
| Type | 单节锂电池充电芯片 |
| Charge voltage | 4.7V ~ 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 | ISLEEP:20 |
| Application | 电池充电IC |
| Iq | 20uA |
| 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 CXLB7257 CXLB7257B is a complete battery charger controller for one (4.22V) cell lithium-ion battery. The CXLB7257 CXLB7257B provides a small, simple and efficient solution to fast charge Li-ion battery. An external sense resistor sets the charge current with high accuracy. An internal resistor divider and precision reference set the final float voltage to 4.22V per cell with ±1% accuracy. When the input supply is removed, the CXLB7257 CXLB7257B automatically enters a low current sleep mode, dropping the battery drain current to 4μA. After the charge cycle ends, if the battery voltage drops below 4.05V per cell, a new charge cycle will automatically begin. The CXLB7257 CXLB7257B is available in the 8-lead SOP Package
产品特点 返回TOP
Input Supply Range: 4.7V ~ 6V
High Efficiency Current Mode PWM Controller
End - Charge - Current Detection Output
Constant Switching Frequency for Minimum Noise
±1% Charge Voltage Accuracy
Automatic Battery Recharge
Automatic Shutdown When Input Supply is Removed
Automatic Trickle Charging of Low Voltage Batteries
Battery Temperature Sensing
Stable with Ceramic Output Capacitor
8-Lead SOP Package
应用范围 返回TOP
Charging Docks
Handheld Instruments
Portable Computers
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TOP
相关芯片选择指南 返回TOP 更多同类产品......
|
单节锂电池充电管理IC |
|||||
|
Model |
VIN (V) |
VOUT (V) |
IOUT |
Package |
ISLEEP |
|
4.7V ~ 6V |
4.22V |
1A |
SOP-8L |
20 |
|
|
4.7V ~ 6V |
4.22V |
1.5A |
SOP-8L |
20 |
|
|
4.7V ~ 6V |
4.22V |
1.8A |
SOP-8L |
20 |
|
|
4.7V ~ 6V |
4.22V |
700mA |
SOT-23 |
20 |
|
|
4.7V ~ 6V |
4.22V |
1000mA |
SOT-23 |
20 |
|
|
4.7V ~ 6V |
4.2V |
1A |
SOT-23 |
20 |
|
|
4.7V ~ 6V |
4.22V |
1000mA |
SOT-23 |
20 |
|
|
4.7V ~ 6V |
4.22V |
900mA |
SOP8 |
20 |
|
|
4.7V ~ 6V |
4.22V |
900mA |
SOP8 |
20 |
|
|
4.5~5.5 |
4.2V |
800mA |
DFN3*3-10L |
20 |
|

中文
English
用户评论