LTC4410 USB Power Manager in ThinSOT

The LTC®4410 enables simultaneous battery charging and operation of portable USB 1.0 and 2.0 compliant devices while they are connected to a USB port. As the USB peripheral load increases, the LTC4410 proportionally reduces the battery charge current to keep the total current less than 500mA or 100mA, depending on the state of the MODE pin.

The LTC4410 includes a USB present output that drives an external P-channel MOSFET to disconnect the battery from the USB peripheral when the USB power is valid. This allows device operation when connected to the USB port, even when the battery is deeply discharged.

Other features include reverse current blocking, thermal shutdown and low quiescent current (80µA in 500mA MODE) that is compliant with USB Suspend Mode.

The LTC4410 is available in the low profile (1mm) SOT-23 (ThinSOT™) package

产品特点 Features

Manages Total Power Between a USB Peripheral and Battery Charger
Minimal Voltage Drop (100mV at 500mA)
Ultralow Battery Drain: 1µA
Reverse Current Blocking Diode not Required
Undervoltage Lockout
Very Few External Components
Compatible with Several LTC linear Battery Chargers
Overtemperature Protected
Dual Battery Charge Priority Management
Low Profile (1mm) SOT-23 Package

参数

应用

Cellular Phones
PDAs
Digital Cameras
MP3 Players
Battery Backup Systems

典型应用图

LTC4410 订购信息和价格参考Package Variations and Pricing

器件型号	封装	引脚	温度	价格 (以 1 ~ 99 片为批量)	价格 (以 1000 片为批量) *
LTC4410ES6	SOT	6	E	$1.90
LTC4410ES6#PBF	SOT	6	E	$1.90
LTC4410ES6#TR	SOT	6	E	$1.90	$1.26
LTC4410ES6#TRM	SOT	6	E	$1.90	$1.28
LTC4410ES6#TRMPBF	SOT	6	E	$1.90	$1.28
LTC4410ES6#TRPBF	SOT	6	E	$1.90	$1.26

LTC4410 数据手册及相关资料下载

数据手册(英文) : LTC4410 - USB Power Manager in ThinSOT.PDF
设计要点 (中文) : DN320 New ICs Simplify Battery Charging from the USB.PDF
可靠性数据 : R415 Reliability Data .PDF
产品选型卡 : Ideal Diode Controllers.PDF