MCP73871中文资料USB/AC Battery Charger with Power Path Management数据手册Microchip规格书

描述 Description

The MCP73871 device is a 1A fully integrated linearsolution for system load sharing and Li-Ion / Li-Polymerbattery charge management with AC-DC wall adapter and USB port power sources selection. It’s also capable of autonomous power source selection between input or battery. The MCP73871 device employs a constant current/constant voltage (CC/CV) charge algorithm with selectable charge termination point. The constant voltage regulation is fixed with four available options: 4.10V, 4.20V, 4.35V, or 4.40V.

特性 Features

Integrated System Load Sharing and Battery Charge Management
Simultaneously Power the System and Charge the Li-Ion Battery
Integrated Pass Transistors
Integrated Current Sense
Integrated Reverse Discharge Protection
Selectable Input Power Sources: USB Port or AC-DC Wall Adapter
Preset High Accuracy Charge Voltage Options:4.10V, 4.20V, 4.35V or 4.40V
±0.5% Regulation Tolerance
Maximum 1.8A Total Input Current Control
Resistor Programmable Fast Charge Current Control: 50 mA to 1A
Resistor Programmable Termination Set Point
Selectable USB Input Current Control: Absolute Maximum: 100 mA (L) / 500 mA (H)
Automatic Recharge
Automatic End-of-Charge Control
Safety Timer With Timer Enable/Disable Control
0.1C Preconditioning for Deeply Depleted Cells
Battery Cell Temperature Monitor
Undervoltage Lockout (UVLO)
Low Battery Status Indicator (LBO)
Power-Good Status Indicator (PG)
Charge Status and Fault Condition Indicators

简介

MCP73871属于集成电路（IC）的电池充电器。由制造生产的MCP73871电池充电器电池充电器 PMIC（电源管理集成电路）是元器件级产品系列，用于在电子设备中实现电池充电控制和充电管理功能。这些器件主要根据电池化学及其设计用于的电池数量来分类，可提供电化学电池和超级电容器安全充电所必需的电流或电压调节和监视功能。