LM3909N National Semiconductor, LM3909N Datasheet
LM3909N
Specifications of LM3909N
LM3909
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LM3909N Summary of contents
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... Electronic applications such as trigger and sawtooth Y generators Siren for toy fire engine (combined oscillator speaker Y driver) 20 Warning indicators powered 200V Y Connection Diagram Order Number LM3909N See NS Package Number N08E TL H 7969 – 1 February 1995 speaker Dual-In-Line Package TL H 7969 – 2 Top View RRD-B30M115 Printed ...
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... Absolute Maximum Ratings If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Power Dissipation V a Voltage Electrical Characteristics Parameter Supply Voltage (In Oscillation) Operating Current Flash Frequency 300 F 5% Capacitor High Flash Frequency ...
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Typical Applications (Continued)(See applications notes below) Warning Flasher High Voltage Powered Note Nominal flash rate 1 Hz APPLICATIONS NOTES Note 1 All capacitors shown are electrolytic unless marked otherwise Note 2 Flash rates and frequencies assume a 5% capacitor tolerance ...
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Typical Applications (Continued) (See applications notes on previous page) 3V Flasher Note Nominal flash rate 1 Hz Average DRAIN Fast Blinker Note Nominal flash rate Average DRAIN ...
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Typical Applications (Continued) (See applications notes above) Note LM3909 capacitor and LED are installed in a white translucent cap on the flashlight’s back end Only one contact strip (in addition to the case connection) is needed for flasher power Drawing ...
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Typical Applications (Continued) (See applications notes above) ‘‘Buzz Box’’ Continuity and Coil Checker Note Differences between shorts coils and a few ohms of resistance can be heard 1 kHz Square Wave Note Output voltage through a 10k load to ground ...
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Typical Applications (Continued) (See applications notes above) LED Booster Note High efficiency 4 mA drain Continuous appearing light obtained by supplying short high current pulses (2 kHz) to LEDs with higher than battery voltage available Incandescent Bulb Flasher TL H ...
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... National does not assume any responsibility for use of any circuitry described no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications Molded Dual-In-Line Package (N) Order Number LM3909N NS Package Number N08E 2 A critical component is any component of a life ...