SC803数据手册Semtech中文资料规格书

描述 Description

Not Recommended For New Design
The SC803 is a fully integrated, single cell, constant-current, constant-voltage Lithium-Ion battery charger management system.

特性 Features

• Fully integrated charger with FET pass transistor, reverse-blocking diode, sense resistor and thermal protection
• Complete voltage ranges of 4.1 V, 4.2 V, & adjustable
• Programmable precharge, fastcharge & termination current
• Battery voltage controlled to 1% accuracy
• Soft-start for step load and adaptor plug-in
• Up to 1.5 A continuous charge current
• Charge current monitor output from microcontroller or ADC Interface
• Input voltages range from 4.2 V to 7 V
• 0.1 µA battery drain current in shutdown and monitor modes
• Operates without a battery in regulated LDO mode
• Small 4 mm x 4 mm 16-lead MLP package
• Low thermal impedance of 50°C/watt
• Few external components
• Over-current protection in all charging modes
• Over-voltage protection with fault pin output
• All outputs able to drive LEDs and interface to host processor
• Remote Kelvin sensing at the battery terminal
• Small input & output filter capacitors
• Status output communicates charging and end of charge cycle

应用 Application

·Cellular phones

·PDAs

·Handheld meters

·Charging stations

·Handheld computers

·Digital cameras

·Programmable current source