LP3809数据手册LPSemi中文资料规格书

描述 Description

LP3809 is a series of high precision voltage detector with ultra low current consumption (500nA typ. at Vdd=3.0V). It can work at very low voltage, which makes it perfect for system reset. LP3809 is composed of high precision voltage reference, comparator, delay circuit, output driver and resistor array. Internally preset detect voltage has a low temperature drift and requires no external trimming. LP3809 is available in SOT-23-3 packages which are Pb free.

特性 Features

· High-precision detection Voltage 2%
· Detection Voltage 0.9V~5.5V (in 0.1V steps)
· Precise hysteresis 4% typ.
· Operating Voltage range 2.5V~5.5V
· Ultra-low current consumption 500nA typ. (at VDD 3.0V)

应用 Application

· Power monitor for portable equipment
· PDA, DSC, Mobile phone,Notebook,MP3
· CPU and Logic Circuit Reset
· Battery Checker
· Battery Back-up Circuit
· Power Failure Detector