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LM3909

Part Number	LM3909
Manufacturer	National Semiconductor
Description	LM3909 LED Flasher/Oscillator
Published	Mar 22, 2005
Detailed Description	LM3909 LED Flasher Oscillator February 1995 LM3909 LED Flasher Oscillator General Description The LM3909 is a monolith...
Datasheet	LM3909 PDF File

Overview

LM3909 LED Flasher Oscillator February 1995 LM3909 LED Flasher Oscillator General Description The LM3909 is a monolithic oscillator specifically designed to flash Light Emitting Diodes By using the timing capacitor for voltage boost it delivers pulses of 2 or more volts to the LED while operating on a supply of 1 5V or less The circuit is inherently self-starting and requires addition of only a battery and capacitor to function as an LED flasher Packaged in an 8-lead plastic mini-DIP the LM3909 will operate over the extended consumer temperature range of b 25 C to a 70 C It has been optimized for low power drain and operation from weak batteries so that continuous operation life exceeds th...

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