
CXLB7257C锂离子开关式电池充电器快速充电外部感测电阻器可高精度设置充电电流内部电阻分压器和精密基准将每个电池的最终浮充电压设置为4.22V
| 产品型号: | CXLB7257C |
| 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: | 44 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) | 1.8AA |
| 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 | 1.8A |
| 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 CXLB7257C is a complete battery charger controller for one (4.22V) cell lithium-ion battery. The CXLB7257C 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 CXLB7257C 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 CXLB7257C is available in the SOP8/PP package。
产品特点 返回TOP
Input Supply Range: 4.7V ~ 6V
Maximum Charge Current: 1.8A
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
SOP8/PP 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......
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单节锂电池充电管理IC |
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|
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 |
|

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