LM3909 National Semiconductor, LM3909 Datasheet - Page 7
LM3909
Manufacturer Part Number
LM3909
Description
LM3909 LED Flasher/Oscillator
Manufacturer
National Semiconductor
Datasheet
1.LM3909.pdf
(8 pages)
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Typical Applications
(Continued) (See applications notes above)
LED Booster
Incandescent Bulb Flasher
TL H 7969 – 18
Note High efficiency 4 mA drain Continuous appearing light obtained by supplying
TL H 7969 – 19
short high current pulses (2 kHz) to LEDs with higher than battery voltage available
Note Flash rate 1 5 Hz
Emergency Lantern Flasher
TL H 7969 – 20
Note Nominal flash rate 1 5 Hz
7
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