FLC21, FLC21-135A

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FLC21-135A
LOW POWER FIRE LIGHTER CIRCUIT

Application Specific Discretes A.S.D.TM
FEATURES
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s

s

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DEDICATED THYRISTOR STRUCTURE FOR CAPACITIVE DISCHARGE IGNITION OPERATION HIGH PULSE CURRENT CAPABILITY IFRM = 90A @ tp = 10uS AC OR DC OPERATION CAPABILITY WITH SUPPLY FROM THE AC MAINS OR A DC BATTERY FAST TURN-ON OPERATION DESIGNED FOR HIGH AMBIENT TEMPERATURE (up to 120 C)

1

2

3

TO-92 (Plastic)

BENEFITS
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SPACE SAVING THANKS TO MONOLITHIC FUNCTION INTEGRATION HIGH RELIABILITY WITH PLANAR TECHNOLOGY

FUNCTIONAL DIAGRAM
pin 3

DESCRIPTION The FLC21-135A has been especially developed for capacitance discharge operation. The main applications are: fuel ignitors, fuel or gas heaters, gas ranges, cooker tops, barbecues, water heaters, HVACs, portable ignitors, insect killers. Based on ST's ASDTM technology, it provides a fully integrated function, with high performance and reliability levels, adapted to severe and hot temperature environment. The typical supply of the FLC21-135A fire lighter circuit is a DC battery or the AC mains. Th: Thyristor for the switching operation. Z: Zener diode to set the igniting threshold voltage. D: Diode for the reverse conduction. R: 2 k resistor.

Z Th

D

R

pin 1

pin 2 not connected

DEVICE TYPE FLC21-135A

APPLICATION BATTERY OPERATION

MODE Ignition

July 2003 - Ed: 6D

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