PW2601过压过流芯片可调限流,过流过压保护

GENERAL DESCRIPTION

The PW2601 is a charger front-end integrated circuit designed to provide protection to Li-ion batteries from failures of charging circuitry. The device monitors the input voltage, battery voltage and the charging current to make sure all three parameters are operated in normal range. The device will switch off internal MOSFET to disconnect IN to OUT to protect load when any of input voltage, output current exceeds the threshold. The Over temperature protection (OTP) function monitors chip temperature to protect the device. The PW2601 also can protect the system’s battery from being over charged by monitors the battery voltage continuously. The device operates like a linear regulator, maintaining a 5.1V output with input voltages up to the input over- voltage threshold.

PW2601是一款充电器前端集成电路，旨在为锂离子电池提供保护，使其免受充电电路故障的影响。该设备监视输入电压，电池电压和充电电流，以确保所有三个参数均在正常范围内运行。当任何输入电压，输出电流超过阈值时，该器件将关闭内部MOSFET以断开IN至OUT的连接，以保护负载。过热保护（OTP）功能监视芯片温度以保护器件。 PW2601还可以通过连续监视电池电压来保护系统电池免于过充电。该器件的工作原理类似于线性稳压器，可在输入电压高达输入过压阈值的情况下保持5.1V输出。

The PW2601 is available in DFN-2x2-8L package. Standard products are Pb-free and Halogen- free.

PW2601采用DFN-2x2-8L封装。标准产品是无铅和无卤素的。

FEATURES特征

Maximum Input Voltage: 24V最大输入电压：24V

Programmable OCP: Up to 1.5A可编程OCP：高达1.5A

Input OVP: 6.8V输入OVP：6.8V

OVP Response Time: Less Than 1usOVP响应时间：少于1us

Battery OVP threshold: 4.35V (Typ.)电池OVP阈值：4.35V（Typ。）

Over Temperature Protection过温保护

Soft-Start to Prevent Inrush Currents软启动，防止涌入电流

TYPICAL APPLICATION CIRCUIT典型电路