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首页 > Products > Battery Charging Chip > Lithium Charging Chip > Multiple Lithium Battery Charging Chips >Cxlb7332 is a lithium battery charging control chip with trickle constant current and constant voltage charging modes which can charge single (4.2V/4.35v), double (8.4v/8.7v) lithium batteries
Cxlb7332 is a lithium battery charging control chip with trickle constant current and constant voltage charging modes which can charge single (4.2V/4.35v), double (8.4v/8.7v) lithium batteries

Cxlb7332 is a lithium battery charging control chip with trickle, constant current and constant voltage charging modes, which can charge single (4.2V / 4.35v), double (8.4v / 8.7v) lithium batteries or three (12.6V / 13.05v) lithium batteries rapidly and efficiently. The cxlb7332 has a wide range of input power supply. It works at a switch frequency of 450kHZ and adopts a current mode PWM step-down switch structure. It provides a micro, simple and efficient solution for fast charging of lithium battery.
The charging current of cxlb7332 is set by the external sense resistor, and the current accuracy is within ?10%; the floating charging voltage of each battery is set to 4.2v/4.35v (single section), 8.4v or 8.7v (double section), 12.6V or 13.05v (three sections) by the partial voltage resistor and precise reference voltage, and the accuracy is up to ?1%. There are timer to set trickle charging time and current mode charging time. After charging, if the battery voltage drops to about 3.5% lower than the floating charge voltage, the controller will automatically recharge the battery. When the input power is removed, the chip automatically enters the sleep mode

Cxlb7332 is a lithium battery charging control chip with trickle constant current and constant voltage charging modes which can charge single (4.2V/4.35v), double (8.4v/8.7v) lithium batteries
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  1. 1.产品概述    2.产品特点     Cgj嘉泰姆

  2. 3.应用范围    4.技术规格书下载(PDF文档)Cgj嘉泰姆

  3. 5.产品封装    6.电路原理图  Cgj嘉泰姆

     7.相关产品Cgj嘉泰姆

产品概述                                             

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CXLB7332是一款具有涓流,恒流,恒压充电模式的锂电池充电控制芯片,可以分别给单节(4.2V/4.35V),双节(8.4V/8.7V)锂电池或三节(12.6V/13.05V)锂电池进行快速高效地充电。CXLB7332具备较宽的输入电源范围,工作在450KHz的开关频率下,采用电流模式PWM降压型开关结构,为锂电池快速充电提供了微型、简单且高效的解决方案。Cgj嘉泰姆

CXLB7332由外部Sense电阻设定充电电流的大小,电流精度达到±10%以内;内部由分压电阻和精准的参考电压将每节电池的浮充电压设定4.2V/4.35V(单节),8.4V或8.7V(双节)12.6V或13.05V(三节)同时具有高达±1%的精度。内部含有定时器设定涓流充电时间和电流模式充电时间。当充电结束后,如果电池电压降到比浮充电压低大约3.5%时,控制器自动重新对电池进行充电。当输入电源去掉之后,芯片自动进入休眠模式。芯片有对电池温度进行实时检测功能,具备自恢复功能。Cgj嘉泰姆

产品特点                                                                         返回TOPCgj嘉泰姆

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● 宽范围电源电压:Cgj嘉泰姆

  6V~20V-4.2V版或4.35V版Cgj嘉泰姆

  8.9V~20V-8.4V版或8.7V版Cgj嘉泰姆

  15V~20V-12.6V版或13.05V版Cgj嘉泰姆

● 高效电流模式PWM控制结构450KHz开关频率Cgj嘉泰姆

● 高达2A的充电电流Cgj嘉泰姆

● 充电结束时电流检测输出Cgj嘉泰姆

● 6小时充电终止定时器Cgj嘉泰姆

● ±1% 的充电电压精度Cgj嘉泰姆

● ±10% 的充电电流精度Cgj嘉泰姆

● 防倒灌电流低至9μACgj嘉泰姆

● 自动给电池再充电Cgj嘉泰姆

● 电池电压较低时自动进入涓流充电模式Cgj嘉泰姆

● 输入电源去除自动进入休眠模式Cgj嘉泰姆

● 电池温度检测Cgj嘉泰姆

● 采用低ESR的陶瓷电容输出稳定Cgj嘉泰姆

应用范围                                           返回TOPCgj嘉泰姆

● 便携式笔记本电脑 Cgj嘉泰姆

● 8-pin SOP8 Cgj嘉泰姆

● 便携式DVD Cgj嘉泰姆

● 手持设备Cgj嘉泰姆

技术规格书(产品PDF)                         返回TOP Cgj嘉泰姆

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Cgj嘉泰姆

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电路原理图                                             返回TOPCgj嘉泰姆

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Applications:①Mobile phone②MID③PDA④Battery   Charger⑤Bluetooth equipmentCgj嘉泰姆