Qorvo的ACT2823是一款高性能、轻巧的电池管理IC,能够为备用电池组和独立电池充电器提供最小尺寸的解决方案,而无需电池平衡。每个解决方案都可以用一个ACT2823集成电路来实现。
该产品集成了备用电池组所需的所有功能,包括开关充电器、升压转换器和LED指示灯。该产品还包括获取用户反馈的输入(例如,通过按钮),以支持各种用户界面功能,例如打开/关闭充电和查询充电状态。IC支持LED指示,在4个LED上显示充电水平。
行动2823operates at 400 kHz for switching charger and 400 kHz for boost converter allowing tiny external inductor and capacitors. ACT2823 provides a direct power path from input to output with programmable current limit while providing power to switching charger. Output has higher priority than battery charger if the programmed input current limit is reached.
The product charges the battery with the full cycle of preconditioning, fast charge with constant current and constant voltage until end of charge. The battery charger is thermally regulated at 110 °C with charge current foldback. The product's boost converter steps battery voltage up to 5 V. The boost converter features high efficiency, constant current regulation, short circuit protection and over-voltage protection.
充电器拓扑 | 促进 |
Battery Cell | Dual Cell |
Input Voltage(五) | 4.5 to 5.5 |
最大充电电流(A) | 1.8 |
内置LDO稳压器 | 5 V / 50 mA |
移动USB(OTG) | Yes |
Max OTG Current(A) | 3.4 |
OTG Output Auto-Detection | Yes |
Battery Cell Balancing | No |
接口 | I2C |
模数转换器 | No |
包装类型 | QFN,40针 |
Package(毫米) | 5 x 5 |
RoHS | Yes |
Lead Free | Yes |
无卤素 | Yes |
ITAR限制 | No |
ECCN公司 | EAR99 |
此套件是一个成熟的应用电路设计的ACT2823QJ-T1000充电器与电源路径和单USB输出。
EVK包含一个微型USB输入和USB输出。它提供2.4A输出。配置为2.4A电池充电。EVK的充电效率高达91%,放电效率高达95%(Vbat=4.1V)。此EVK演示了ACT2823QJ-T1000充电器,但其他ACT2823xxx选项可通过更换IC和任何其他必要组件在该EVK上进行评估。