AAT3783中文资料1-A Linear Li-Ion/Polymer Battery Charger with 28V Over-Voltage Protection数据手册Skyworks规格书

描述 Description

The AAT3783 BatteryManager™ is a single-cell Lithium-Ion (Li-Ion)/Li-Polymer battery charger IC, designed to operate from USB ports, AC adapter inputs, or from a charger adapter up to an input voltage of 6.5V. For increased safety, the AAT3783 also includes over-voltage input protection (OVP) up to 28V.
The AAT3783 precisely regulates battery charge voltage and current for 4.2V Li-Ion/Polymer battery cells through an extremely low RDS(ON) switch. When charged from an adapter or a USB port, the battery charging current can be set by an external resistor up to 1A. In the case of an over-voltage condition in excess of 6.5V, a series switch opens preventing damage to the battery and charging circuitry. With the addition of an external resistor the OVP trip point can be programmed to a level other than the factory set value of 6.5V. In the case of an OVP condition a fault flag is activated.
Battery charge state is continuously monitored for fault conditions. In the event of an over-current, battery over-voltage, short-circuit or over-temperature failure, the device will automatically shut down, thus protecting the charging device, control system and the battery under charge. A status monitor output pin is provided to indicate the battery charge status by directly driving an external LED. An open-drain power-source detection output (ADPP) is provided to report the power supply status.
The AAT3783 comes in a thermally enhanced, space-saving, Pb-free 16-pin 3x4 mm TDFN package and is specified for operation over the -40°C to +85°C temperature range.

特性 Features

·USB or AC Adapter System Power Charger
·Programmable from 100mA to 1A Max
·4.0V ~ 7.5V Input Voltage Range
·Over-Voltage Input Protection up to 28V
·High Level of Integration with Internal:
·Charging Device
·Reverse Blocking Diode
·Current Sensing
·Digital Thermal Regulation
·Charge Current Programming (ISET)
·Charge Termination Current Programming (TERM)
·Charge Timer (CT)
·Battery Temperature Sensing (TS)
·TS Pin Open Detection
·Automatic Recharge Sequencing
·No Trickle Charge Option Available
·Full Battery Charge Auto Turn Off / Sleep State / Charge Termination
·Automatic Trickle Charge for Battery Pre-conditioning
·Battery Over-Voltage and Over-Current Protection
·Emergency Thermal Protection
·Power On Reset
·16-pin 3x4mm TDFN Package

简介

AAT3783属于集成电路（IC）的电池充电器。由制造生产的AAT3783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。