BL8509
Low Voltage Detector with Built-in Delay Circuit
Features
Outline:
High-precision detection Voltage
2%
BL8509 is a series of high precision voltage
Detection Voltage 0.9V~6.0V (in 0.1V steps)
detector with ultra low current consumption
(500nA typ. at Vdd=3.0V) and a built-in delay
circuit. It can work at very low voltage, which
makes it perfect for system reset.
Built-in Power on Reset Delay Time
circuit::Refer to Selection Guide
Operating Voltage range 0.7V~10V
BL8509 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.
Ultra-low current consumption 500nA typ. (at
V
DD 3.0V)
Two Output forms CMOS and N-channel
open-drain (Active Low)
Two type of output, CMOS and N-channel
open-drain are available.
Application
Power monitor for portable equipment such as
PDA,DSC,Mobile phone,Notebook,MP3
BL8509 is available in SOT-23 which is Pb
free.
CPU and Logic Circuit Reset
Battery Checker
Battery Back-up Circuit
Power Failure Detector
http://www.belling.com.cn
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Total 17 Pages
8/8/2006