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
