ST FLC21-135A User Manual
®
FLC21-135A
Application Specific Discretes
A.S.D.™
FEATURES
DEDICATED THYRISTOR STRUCTURE FOR
■
CAPACITIVE DISCHARGE IGNITION
OPERATION
HIGH PULSE CURRENT CAPABILITY
■
=90A @ tp=10µS
I
FRM
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)
BENEFITS
SPACE SAVING THANKS TO MONOLITHIC
■
FUNCTION INTEGRATION
■ HIGH RELIABILITY WITH PLANAR
TECHNOLOGY
FIRE LIGHTER CIRCUIT
1
2
3
TO-92
(Plastic)
FUNCTIONAL DIAGRAM
pin 3
LOW POWER
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 ASD™ 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:Zenerdiodetoset the ignitingthreshold voltage.
D: Diode for the reverse conduction.
R: 2kΩresistor.
Z
Th
R
pin 1
pin 2 not connected
DEVICE
TYPE
APPLICATION MODE
FLC21-135A BATTERY
OPERATION
D
Ignition
July 2003 - Ed: 6D
1/6
FLC21-135A
ABSOLUTE RATINGS (limiting values)
Symbol Parameter Value Unit
I
TRM
I
FRM
dI/dt
Tstg
Tj
Tamb
T
L
Note 1 : Test current waveform
Repetitive surge peak on state current for thyristor
-30°C ≤ Tamb ≤120°C
tp=10µs
( note 1)
Repetitive surge peak on state current for diode
-30°C ≤ Tamb ≤120°C
Critical rate of rise on state current -30°C ≤ Tamb ≤120°C
Storage junctiontemperature range
Maximum junction temperature
Operating temperature range
Maximum lead temperature for soldering during 10s
90 A
50 A/µs
-40to+150
125
-30to+120 °C
260 °C
°C
10µs
100ms
THERMAL RESISTANCE
Symbol Parameter Value Unit
Rth(j-a)
Junction to ambient
150 °C/W
ORDERING INFORMATION
FLC 2 1 135 A-
PACKAGE A:TO92
FIRE LIGHTER CIRCUIT
135: V = 135V
ITRM = 90A
RM
2/6
CIRCUIT NUMBER:
SCR + diode + Zener + Resistance
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