NCP1835B中文资料300 mA One-Cell Lithium-ion/Polymer Battery Charger数据手册ONSEMI规格书

描述 Description

NCP1835B is an integrated linear charger specifically designed to charge 1-cell Li-Ion batteries with a constant current, constant voltage (CCCV) profile. Its low input voltage capability, adjustable charge current, ability to maintain regulation without a battery, and its onboard thermal foldback make it versatile enough to charge from a variety of wall adapters. The NCP1835B can charge from a standard wall adapter or from the USB port. It has been optimized to charge low capacity batteries such as those found in wireless headsets and flash memory-based MP3 players. The recommended charge current rate is 30-300 mA.

特性 Features

• Integrated Voltage and Current Regulation
• No External MOSFET, Sense Resistor or Blocking Diode Required
• Charge Current Thermal Foldback
• Integrated Precharge Current for Conditioning a Deeply Discharged Battery
• Integrated End of Charge (EOC) Detection
• 1% Voltage Regulation
• 4.2 V Regulated Output Voltage
• Regulation Maintained without a Battery Present
• Programmable Full Charge Current
• Open Drain Charge Status and Fault Alert Flags
• 2.8 V Output for AC Present Indication and Powering Charging Subsystems
• Minimum Input Voltage of 2.4 V Allows Use of Current Limited Adapters
• Automatically Recharging if Battery Voltage Drops after Charging Cycle is Completed
• Battery Powered Devices
• Pb-Free Package is Available

应用 Application

• Wireless Headsets
• Bluetooth Devices
• MP3 Players
• USB Appliances

简介

NCP1835B属于集成电路（IC）的电池充电器。由ONSEMI制造生产的NCP1835B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。