CXLB74157 is a switching Li-Ion battery charger capable of delivering up to 1.2A of charging current to the battery and also capable of delivering up to 5V/1.2A in boost operation, with high efficiency in both charging mode and boost mode. For charging, it uses a proprietary control scheme that eliminates the current sense resistor for conventional constant current control, maximizing efficiency, reducing charging time and reducing costs. It can also output a 5V voltage in the reversed direction by boosting from the battery. It only needs a single inductor to provide power bi-directionally with a proprietary automatic mode detect and switch scheme. CXLB74157 is an ideal all-in-one solution for battery charging and discharge applications, such as power banks, smart phones, and tablets with only one USB port that can be used for charging battery function.
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[ CXLB74157 ]"
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产品概述 返回TOP
CXLB74157 is a switching Li-Ion battery charger capable of delivering up to 1.2A of charging current to the battery and also capable of delivering up to 5V/1.2A in boost operation, with high efficiency in both charging mode and boost mode. For charging, it uses a proprietary control scheme that eliminates the current sense resistor for conventional constant current control, maximizing efficiency, reducing charging time and reducing costs. It can also output a 5V voltage in the reversed direction by boosting from the battery. It only needs a single inductor to provide power bi-directionally with a proprietary automatic mode detect and switch scheme. CXLB74157 is an ideal all-in-one solution for battery charging and discharge applications, such as power banks, smart phones, and tablets with only one USB port that can be used for charging battery function. CXLB74157 is suitable for charging a 4.2V Li-ion battery. And CXLB74157is in SOT23-5 package.针对4.2V电池，可支持同口进出的，1A充放电的移动电源芯片，可用于蓝牙充电仓，口红移动电源，雾化器，补水仪。其内置了一个慢闪烁的充电指示灯和一个高亮的放电指示灯。CXLB74157是目前业界尺寸最小，采用SOT23-5，并实现1A充电，1A升压的锂电池PMU芯片。
产品特点 返回TOP
Bi-Directional Power conversion with Single Inductor
Automatic Mode Switching
Switching Charger
5V Synchronous Boost
Up to 95% Efficiency
Up to 1.2A Max charging current and 1.2A discharging
No-Battery detection
No External Sense resistor
应用范围 返回TOP
Tablet, MID
Smart Phone
Power Bank
技术规格书（产品PDF) 返回TOP
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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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型号 |
产品描述 |
灯显 |
升压输出 |
充电 |
输入 耐压 |
Iq(uA) |
备注 |
封装形式 |
|
三合一4可调电 量灯高耐压20V |
4精准电量灯手电 |
5V-2.4A |
4.2V-2.1A固定 |
20 |
70 |
移动电源 |
ESOP8 |
|
|
三合一多模式输出 |
4 LED充电放电充 满心跳灯手电筒 |
5V-2.1A 同步 |
4.2V-2.1A 可选择 |
9 |
<100 |
移动电源 |
ESOP8 |
|
|
三合一5V常开多状态灯 |
充电放电充满心跳灯 |
5V-1A 同步 |
4.2V-1.8A可调 |
9 |
<100 |
移动电源 |
ESOP8,SOP8 |
|
|
三合一自动启动5V常开 |
4档电量灯 |
5V-1A同步 |
4.2V-1.8A可调 |
9 |
<100 |
移动电源 |
SOP8 |
|
|
三合一自动启动5V常开 |
充电放电充满心跳灯 |
5V-2A同步 |
4.2V-2.8A可调 |
9 |
<100 |
移动电源 |
ESOP8 |
|
|
三合一常开5V带手电 |
4档电量灯 |
5V-2A同步 |
4.2V-2.1A |
9 |
<100 |
移动电源 |
ESOP8 |
|
|
三合一自动启动5V常开 |
4档电量灯 |
5V-2A同步 |
4.2V-2.8A可调 |
9 |
<100 |
移动电源 |
ESOP8 |
|
|
三合一5V-3A常开5V |
4档电量灯 |
5V-3A同步 |
4.2-4A可调 |
9 |
<100 |
移动电源 |
QFN3X3-20 |
|
|
三合一5V-2.4A 自动负载启动 |
4档可调电量灯 |
5V-2.4A同步 |
4.2/4.35-2.8A 可调 |
20 |
68 |
移动电源 |
QFN3X3-20 |
|
|
三合一5V-2.4A 自动负载启动 |
4档可调电量灯 |
5V-2.4A同步 |
4.2/4.35-2.8A 可调 |
20 |
68 |
移动电源 |
QFN4X4-28 |
|
|
三合一5V-2.1A 长按开关机 |
4档可调电量灯 20秒灭灯 |
5V-2.1A同步 |
4.2/4.35-2.8A 可调 |
20 |
28 |
移动电源 |
QFN4X4-28 |
|
|
三合一5V-2.1A 按键启动 |
4档可调电量灯 |
5V-2.1A同步 |
4.2/4.35-2.8A 可调 |
20 |
28 |
移动电源 |
QFN4X4-28 |
|
|
三合一5V-2.1A 自动负载启动 |
4档可调电量灯 |
5V-2.1A同步 |
4.2/4.35-2.8A 可调 |
20 |
28 |
移动电源 |
QFN4X4-28 |
|
|
三合一5V-1A |
充电慢闪充满指示 |
5V-1A同步 |
4.35V-1A可调 |
9 |
<100 |
移动电源 蓝牙充电盒 |
SOT23-5 |
|
|
三合一5V-1A |
充电慢闪充满指示 |
5V-1A同步 |
4.2V-1A可调 |
9 |
<100 |
移动电源 蓝牙充电盒 |
SOT23-5 |
|
|
二合一MCU控制 |
充电指示MCU控制 |
5V-2.4A同步 |
4.35-2.4A可调 |
9 |
7 |
苹果背夹 |
QFN3X3-20 |
|
|
二合一MCU控制 |
充电指示MCU控制 |
5V-2.4A同步 |
4.2V-2.4A可调 |
9 |
7 |
苹果背夹 |
QFN3X3-20 |
|
|
二合一移动电源 |
心跳灯*1 |
5V-1A同步 |
4.2V-1A线性 |
9 |
<100 |
移动电源 |
ESOP8 |
|
|
二合一线性充电 |
充电指示灯 |
5V-1A同步 |
4.2V-1A线性 |
9 |
<100 |
移动电源 |
ESOP8 |
