BL8509D Datasheet (BELLING) - Low Voltage Detector

BL8509D, Low Voltage Detector

SOT-23 1 PIN Number SOT-23-3 SOT-23-5 13 PIN Name VSS Function GND Pin 22 1 VOUT Voltage detection output Pin 33 *- 2 VDD 4 NC 5 NC Voltage input Pin No connection No connection http://www.belling.com.cn - 2Total 11 Pages 1/1/2013 Block diagram: BL8509D N channel open-drain

BL8509D Low Voltage Detector with Built-in Delay Circuit Outline: BL8509D is a series of high precision voltage detector with ultra low current consumption (500nA typ.

at VDD=VTH+1V) and a built-in delay circuit.

It can work at very low voltage, which makes it perfect for system reset.

BL8509D 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 trimmin

BL8509D Features

* High-precision detection Voltage： ±2%

* Detection Voltage：1.6V~5.0V (in 0.1V steps)

* Built-in Power on Reset Delay Time circuit:: Refer to Selection Guide

* Operating Voltage range：1.0V~6.0V

* Ultra-low current consumption：0.9uA typ. (at VDD=3V)