LTC4096X中文资料Dual Input Standalone Li-Ion Battery Chargers数据手册ADI规格书

描述 Description

The LTC4096/LTC4096X are standalone linear chargers that are capable of charging a single-cell Li-Ion or Li-Polymer battery from both wall adapter and USB inputs. The chargers can detect power at the inputs and automatically select the appropriate power source for charging.No external sense resistor or blocking diode is required for charging due to the internal MOSFET architecture. Internal thermal feedback regulates the battery charge current to maintain a constant die temperature during high power operation or high ambient temperature conditions. The float voltage is fixed at 4.2V and the charge current is programmed with an external resistor. The LTC4096 terminates the charge cycle when the charge current drops below the user programmed termination threshold after the final float voltage is reached. The LTC4096 can be put into shutdown mode reducing the DCIN supply current to 20µA, the USBIN supply current to 10µA, and the battery drain current to less than 2µA even with power applied to both inputs.
Other features include trickle charge (LTC4096 only), automatic recharge, undervoltage lockout, charge status output and power present output with 120mA drive capability.

特性 Features

·Charges Single-Cell Li-Ion Battery from Wall Adapter and USB Inputs
·Automatic Input Detection (DC Input has Charging Priority)
·Charge Current Programmable up to 1.2A from Wall Adapter Input
·C/X Charge Current Termination
·Input Power Present Output (PWR) with 120mA Drive Capability
·Independent DC, USB Charge Current Programming
·Preset Float Voltage with ±0.6% Accuracy
·Thermal Regulation Maximizes Charge Rate Without Risk of Overheating
·Charge Status Output
·Automatic Recharge
·20µA Charger Quiescent Current in Shutdown
·Available in a Thermally Enhanced, Low Profile (0.75mm) 10-Lead (3mm × 3mm) DFN Package

应用 Application

·Cellular Telephones
·MP3 Players
·Portable Handheld Devices

简介

LTC4096X属于集成电路（IC）的电池充电器。由制造生产的LTC4096X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。