今日头条
描述
该参考设计是一款高度集成的电路解决方案,旨在保护锂离子电池免受充电电路故障的影响。该 IC 设计可持续监控输入电压和电池电压。如果发生输入过压的情况,则该 IC 将在消隐时间后关闭内部电源 FET。如果在充电过程中电池电压增加到不安全水平,则将移除系统电源。如果输入电流在有限时间内超出过流阈值,则该 IC 设计将关闭输出电源。集成式充电 FET 可根据主机的控制来调节充电电压和电流。该设计还可提供为主机控制器提供带过压和过流保护功能的电压源。
特性
串联电池数:1S
最大输入电压:26V
最大充电电流:560mA
通信:独立
Over-Voltage and Over-Current Charger Front-End Protection IC With FET Reference Design
BQ24350 具有 FET、6.17 输入 OVP 的过压和过流充电器前端保护 IC
推荐型号:BQ24650RVAT
https://www.iczoom.com/product/k01-433552-BQ24650RVAT.html
描述
The bq24350/2 is a highly integrated circuit designed to provide protection to Li-ion batteries from failures of the charging circuit. The IC continuously monitors the input voltage and the battery voltage. In case of an input over-voltage condition, the IC will turn off the internal power FET after a blanking time. If the battery voltage rises to unsafe levels during charging process, power is removed from the system. If the input current exceeds the over current threshold for a limited time, the IC will turn off the output power. The integrated charging FET can regulate the charge voltage and current according to the control from the host. The device can also provide a voltage source with over voltage and over current protection for host controller.
特性
Robust Protection
Input Over-Voltage Protection
Input Over-Current Protection
Accurate Battery Over-Voltage Protection
Thermal Shutdown
Output Short-Circuit Protection
Integrated Charging FET
LDO Mode Operation
Current Limited Power Supply for Host Controller
Soft-Start to Prevent Inrush Currents
Soft-Stop to Prevent Voltage Spikes
30V Maximum Input Voltage
Supports Up to 1A Load Current
Small 2mm × 2mm 8pin SON Package
APPLICATIONS
Mobile Phones
Low-Power Handheld Devices
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