Outline:BL8509 BL8509

BL8509 is a series of high precision voltage

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.

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.

Two type of output, CMOS and N-channel

open-drain are available.

BL8509 is available in SOT-23 which is Pb

free.

Features：BL8509 BL8509

• High-precision detection Voltage： ±2%

• Detection Voltage：0.9V~6.0V (in 0.1V steps)

• Built-in Power on Reset Delay Time

circuit::Refer to Selection Guide

• Operating Voltage range：0.7V~10V

• Ultra-low current consumption：500nA typ. (at

VDD＝3.0V)

• Two Output forms ：CMOS and N-channel

open-drain (Active Low)

Application：BL8509 BL8509

• Power monitor for portable equipment such as

PDA,DSC,Mobile phone,Notebook,MP3

• CPU and Logic Circuit Reset

• Battery Checker

• Battery Back-up Circuit

• Power Failure Detector