Cxlb74115 is a multifunctional power management SOC integrated with boost converter, lithium battery charging management and battery power indication, which provides a complete power solution for mobile power supply
Because of its high integration and rich functions, cxlb74115 requires only a few peripheral devices in its application, and effectively reduces the size of the overall scheme and BOM cost
The cxlb74115 only needs one inductor to realize the function of reducing voltage and boosting voltage. The DC-DC converter works at 1MHz, which can reduce the cost of inductor and capacitor
The synchronous boost system of cxlb74115 adopts CC / CV mode, supports 2.1a output current, with conversion efficiency up to 94%, constant current output function and minimum output voltage up to 4.2V. When no load, it will automatically enter into sleep state after 8 seconds, and the static current will drop to within 20ua
The cxlb74115 adopts the switch charging technology and three-stage (trickle constant current constant voltage) standard charging. The constant current section provides 2.1a current for the battery, and the charging efficiency is up to 95%. The built-in IC temperature and input voltage can intelligently adjust the charging current, which is very compatible with various mobile phone chargers
The cxlb74115 supports 4 / 3 LED power indication and the function of charging and discharging
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[ CXLB74115 ]"
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产品概述 返回TOP
CXLB74115是一款集成升压转换器，锂电池充电管理，电池电量指示的多功能电源管理SOC，为移动电源提供完整的电源解决方案.
CXLB74115的高集成度与丰富功能，使其在应用时仅需极少的外围器件，并有效减小整体方案的尺寸，降低BOM成本.
CXLB74115只需一个电感实现降压与升压功能，DC-DC转换器工作在1MHZ，可以降低电感和电容成本.
CXLB74115的同步升压系统采用CC/CV模式，支持2.1A输出电流，转换效率最高达94%，具用恒流输出功能，最低输出电压达到4.2V。空载时，8秒后自动进入休眠状态，静态电流降到20uA 以内.
CXLB74115采用开关充电技术，采用三段式（涓流-恒流-恒压）标准充电，恒流段对电池提供2.1A电流，充电效率高达95%，内置IC温度和输入电压智能调节充电电流，很好的兼容各种手机充电器.
CXLB74115支持4颗/3颗LED电量指示，支持边充边放功能.
CXLB74115采用ESOP8封装.
产品特点 返回TOP
◆ 同步开关充/放电: 2.1A同步升压放电，2.1A同步降压充电;
◆ 升压效率最高达94%;
◆ 充电效率最高达95%;
◆ 恒压-恒流标准放电曲线;
◆ 涓流-恒流-恒压标准充电曲线;
◆ 待机功耗小于20uA;
◆ 采用专利的双管架构；专利的同口充/放电技术，可共用输入/输出端口，智能识别充/放电;
◆ 自适应充电电流调节，很好兼容各种手机充电器;
◆ 支持4.20V电池，浮充电压精度:0.5%，可定制支持4.30/4.35V电池芯片;
◆ 短按按键开机,双击按键开/关手电LED，长按按键关机;
◆ 内置照明驱动，最大限流50mA，无需限流电阻;
◆ 负载插入自动启动升压，负载移除自动休眠;
◆ 极少的外围元器件，功率MOS内置，单电感实现充放电;
◆ 多重保护：升压输出具有过流、过压、过放、过温、短路保护；充电具有过压、过充、过放、过流、过温保护;
◆ ESD >4KV;
应用范围 返回TOP
◆ 移动电源/充电宝;
◆ 手机、平板电脑等便携式设备;
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产品封装图 返回TOP
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移动电源SOC |
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|
型号 |
封装 |
锂电池类型 |
充电电流 |
放电模式 |
放电电流 |
放电电压 |
电量指示LED |
待机电流 |
|
ESOP8 |
4.20/4.30/4.35/4.4V |
2.1A |
恒压/恒流 |
2.1A |
5.1V |
3~4 |
20uA |
|
|
ESOP8 |
4.20V |
2.1A |
恒压/恒流 |
2.1A |
5.1V |
1/2/3/4 |
50uA |
|
|
ESOP8 |
4.20/4.30/4.35/4.4V |
1A |
恒压/恒流 |
1A |
5.1V |
1/2/3/4 |
30uA |
|
|
ESOP8 |
4.20v |
1A |
恒功率 |
1A |
5.1V |
4 |
160uA |
|
|
SOT23-6 |
4.20V |
0.7A |
恒功率 |
0.7A |
5.1V |
1 |
30uA |
|
|
SOP8 |
4.20V |
0.8A |
恒功率 |
0.8A |
5.1V |
1~2 |
30uA |
|
|
ESOP8 |
4.20V |
1A |
恒功率 |
1A |
5.1V |
1~2 |
40uA |
|
|
SOP16 |
4.20V |
1A |
恒功率 |
1.3A |
5.1V |
4 |
50uA |
|
|
SOT23-6 |
4.20V |
0.5A |
恒功率 |
0.35A |
5.1V |
1 |
30uA |
|
|
HMSOP16 |
4.20/4.35V |
1A |
恒功率 |
1A |
5.1V |
4 |
40uA |
|
|
SOP16 |
4.20V |
1A |
恒功率 |
2A |
5.1V |
4 |
50uA |
|
|
ESOP8 |
4.20V |
1A |
恒功率 |
2A |
Adj |
1 |
50uA |
|
|
SOP16 |
4.20V |
1A |
恒功率 |
2A |
Adj |
4 |
50uA |
|
|
SOP16 |
4.20/4.35V |
1A |
恒功率 |
1A |
5.1V |
4 |
40uA |
|
