Cxlb7286 is a PWM mode three lithium battery charging management integrated circuit, which independently manages the three lithium battery charging. It has the advantages of small footprint, less peripheral components and simple use.
With trickle, constant current and constant voltage charging modes, cxlb7286 is very suitable for lithium battery charging management. In the constant voltage charging mode, cxlb7286 modulates the battery voltage to 12.6V, which can also be adjusted upward through an external resistance; in the constant current charging mode, the charging current is set through an external resistance. For deep discharge lithium battery, when the battery voltage is lower than 66.5% of the constant voltage charging voltage (typical value), cxlb7286 uses 17.5% of the constant current charging current set to trickle charge the battery. In the constant voltage charging stage, the charging current decreases gradually. When the charging current decreases to 16% of the constant current charging current, the charging ends. At the end of charging state, if the battery voltage drops to 95.5% of the constant voltage charging voltage, a new charging cycle will start automatically. When the input power supply is powered down or the input voltage is lower than the battery voltage, cxlb7286 automatically enters the sleep mode.
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[ CXLB7286 ]"
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4A 三节锂电池充电管理集成电路CXLB7286 |
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产品简介 规格书下载 免费样品申请 |
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概述： |
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CXLB7286 是PWM 降压模式三节锂电池充电管理集成电路，独立对三节锂电池充电进行管理，具有封装外形小，外围元器件少和使用简单等优点。 |
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应用： |
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手持设备 |
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电动工具 |
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备用电池应用 |
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独立电池充电器 |
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便携式工业和医疗仪器 |
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特点： |
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宽输入电压范围：6.6V 到30V |
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对三节锂电池完整的充电管理 |
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充电电流可达 4A |
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PWM 开关频率：300KHz |
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恒压充电电压可用电阻向上调整 |
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恒压充电电压精度： ±1% |
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恒流充电电流由外部电阻设置 |
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对深度放电的电池进行涓流充电 |
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自动再充电功能 |
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充电状态和充电结束状态指示 |
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软启动功能 |
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电池端过压保护 |
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工作环境温度：－40℃ 到 ＋85℃ |
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采用 10 管脚SSOP 封装 |
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产品无铅，满足 Rohs，不含卤素 |
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产品封装图： |
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产品原理图： |
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多节锂电池充电芯片选型指南： |
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型号 |
电池种类/串联数量 |
工作模式 |
最高输入电压 |
最大持续充电电流 |
充电结束判断 |
封装 |
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锂电池/3 |
开关模式 |
30V |
4A |
最小充电电流 |
SSOP10 |
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锂电池/多节磷酸锂电池/多节铅酸电池 |
开关模式 |
4V到28V |
最大输出功率25W |
设置结束电压 |
SOT23-6 |
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锂电池/3 |
开关模式 |
+28V |
5A |
最小充电电流 可外部设置 |
TSSOP16 |
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锂电池/4 |
开关模式 |
+28V |
5A |
最小充电电流 可外部设置 |
TSSOP16 |
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锂电池、磷酸铁锂电池/多节 |
开关模式 |
+28V |
5A |
最小充电电流 可外部设置 |
TSSOP16 |
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锂电池、磷酸铁锂电,池/多节 |
开关模式 |
+28V |
5A |
TSSOP16 |
