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Application Specific Discretes
A.S.D.TM
FLC01-200x
®
April 2002 Ed: 6C
FIRE LIGHTER CIRCUIT
IPAK
FLC01-200H
s
Dedicated thyristor structure for capacitance
discharge ignition operation
s
High pulse current capability
190A @ tp = 10
µ
s
s
Fast turn-on operation
s
Designed for high ambient temperature (up to
120°C)
FEATURES
The FLC01 series has been especially developed
for capacitance discharge operation. The main
applications are gas lighters or ignitors such as
cookers / gas boilers / gas hobs...
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.
Th: Thyristor for switching operation.
Z: Zener diode to set the threshold voltage.
D: Diode for reverse conduction.
R: 2 k
resistor.
DESCRIPTION
Z
R
D
Th
pin 2
pin 1
* pin 3 non connected
FUNCTIONAL DIAGRAM
1
2
3
TAB
s
Space saving thanks to monolithic function
integration
s
High reliability with planar technology
BENEFITS
TAB
1
2
3
DPAK
FLC01-200B
FLC01-200x
2/8
Symbol
Parameter
Value
Unit
Rth(j-a)
Thermal resistance junction to ambient
100
°
C/W
THERMAL RESISTANCE
FLC 01 - 200 x (-TR)
FIRE LIGHTER CIRCUIT
CIRCUIT NUMBER:
01 = SCR + diode + Zener + Resistance
(pin 3 not connected)
200: V
= 200V
RM
PACKAGE:
H: IPAK
B: DPAK
PACKING MODE:
Blank: Tube
-TR: Tape & reel
ORDERING INFORMATION
Symbol
Parameter
Value
Unit
I
TRM
Repetitive surge peak on state current for thyristor
-30°C
T
amb
120°C
tp = 10
µ
s
( note 1)
190
A
I
FRM
Repetitive surge peak on state current for diode
-30°C
T
amb
120°C
dI/dt
Critical rate of rise time on state current -30°C
T
amb
120°C
120
A/
µ
s
Tstg
Tj
Storage junction temperature range
Maximum junction temperature
- 40 to + 150
+ 125
°C
Toper
Operating temperature range
-30 + 120
°C
T
L
Maximum lead temperature for soldering during 10s
260
°C
Note 1 : Test current waveform
ABSOLUTE RATINGS (limiting values)
200ms
10µs
FLC01-200x
3/8
ELECTRICAL CHARACTERISTICS
Symbol
Parameters
V
RM
Stand-off voltage
V
BO
Breakover voltage
V
T
On-state voltage
V
F
Diode forward voltage drop
I
BO
Breakover current
I
RM
Leakage current
T
Temperature coefficient for V
BO
I
I
F
VF
V
T
IRM
I BO
I T
V
V
BO
V
RM
Symbol
Test Conditions
Value
Unit
V
F
I
F
= 2A
tp
500µs
Tj = 25°C
Max.
1.7
V
DIODE (D) PARAMETER
Symbol
Test conditions
Min.
Typ.
Max.
Unit
I
RM
V
RM
= 200 V
Tj = 25°C
1
µ
A
Tj = 125°C
10
µ
A
V
BO
at I
BO
Tj = 25°C
206
220
233
V
I
BO
at V
BO
Tj = 25°C
0.5
mA
V
T
I
T
= 2A
tp
500µs
Tj = 25°C
1.7
V
T
0.27
V/°C
THYRISTOR (Th) and ZENER (Z) PARAMETERS
-20
0
20
40
60
80
100
0
0.5
1
1.5
2
2.5
Tj (°C)
k = I
(Tj) / I
(25°C)
BO
BO
Fig. 1: Relative variation of breakover current
versus junction temperature.
FLC01-200x
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Rs
Ds
c
D
Th
Z
R
Ic
AC
MAINS
Ic
t
FLC01-200x
Fig. 2: BASIC APPLICATION
The
applications
of
the
lighter
using
the
capacitance discharge topology operate in 2
phases :
PHASE 1
The energy coming from the mains is stored into
the capacitor C. For that, the AC voltage is rectified
by the diode Ds.
PHASE 2
At the end of the phase 1, the voltage across the
capacitor C reaches the avalanche threshold of
the zener. Then a current flows through the gate of
the thyristor Th which fires.
The firing of the thyristor causes an alternating
current to flow through the capacitor C.
The positive parts of this current flow through C,
Th and the primary of the HV transformer.
The negative parts of the current flow through C, D
and the primaty of the HV transformer.
The maximum Rs value is equal to :
Rs
V
V
T
T
k I
AC
BO
amb
BO
max
(
min.
)
[
max .(
.(
))]
.
*
=
-
+
-
2
1
25
* : see fig 1
RS RESISTOR CALCULATION
The Rs resistor allows, in addition with the capacitor C, the spark frequency to be adjusted and the current
from the mains to be limited. Its value shall allow the thyristor Th to fire even in the worst case. In this case
the system must fire with the lower RMS mains voltage value while the breakdown voltage and current of
the FLC are at the maximum.
FLC01-200x
5/8
4.7
6.8
10
12
15
18
22
27 30
1
2
3
5
10
20
F (Hz)
Rs (k )
Vac=220Vrms, Vbo=225V, Tamb=25°C
C=3.3
F
µ
C=2.7
F
µ
C=2.2
F
µ
C=0.47
F
µ
C=0.47
F
µ
C=1
F
µ
C=1
F
µ
C=1.5
F
µ
C=1.5
F
µ
Fig. 3: Spark frequency versus Rs and C
Fig. 4: Voltage across the capacitance with Rs = 15k
, C = 1
µ
F and V
BO
= 225V.
The couple Rs/C can be chosen with the previous
curve. Keep in mind the Rs maximum limit for
which the system would not work when the AC
mains is minimum. The next curve shows the
behavior with Rs=15k
and C=1
µ
F.
FLC01-200x
6/8
5.0
7.5
10.0
12.5
15.0
50
100
150
200
250
tp (µs)
ITRM(A)
Tj max=120°C
Fig. 5: Peak current limit
PEAK CURRENT LIMIT
T h i s c o m p o n e n t i s d e s i g n e d t o w i t h s t a n d
I
TRM
= 190A for a pulse duration of 10
µ
s for an
ambient temperature of 120°C in repetitive surge.
The curve of peak current versus the pulse
duration allows us to verify if the application is
within the FLC operating limit.
POWER LOSSES (For 10
µ
s, see note 1)
To evaluate the power losses, please use the following equations :
For the thyristor : P = 1.18 x I
T(AV)
+ 0.035 I
2
T(RMS)
For the diode : P = 0.67 x I
F(AV)
+ 0.106 I
2
F(RMS)
FLC01-200x
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PACKAGE MECHANICAL DATA
DPAK
REF.
DIMENSIONS
Millimeters
Inches
Min.
Max
Min.
Max.
A
2.20
2.40
0.086
0.094
A1
0.90
1.10
0.035
0.043
A2
0.03
0.23
0.001
0.009
B
0.64
0.90
0.025
0.035
B2
5.20
5.40
0.204
0.212
C
0.45
0.60
0.017
0.023
C2
0.48
0.60
0.018
0.023
D
6.00
6.20
0.236
0.244
E
6.40
6.60
0.251
0.259
G
4.40
4.60
0.173
0.181
H
9.35
10.10
0.368
0.397
L2
0.80 typ.
0.031 typ.
L4
0.60
1.00
0.023
0.039
V2
0°
8°
0°
8°
6.7
6.7
3
3
1.6
1.6
2.3
2.3
FOOTPRINT (in millimeters)
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FLC01-200x
PACKAGE MECHANICAL DATA
IPAK
H
L
L1
G
B5
B
V1
D
C
A1
A3
A
C2
B3
B6
L2
E
B2
REF.
DIMENSIONS
Millimeters
Inches
Min.
Typ.
Max.
Min.
Typ.
Max.
A
2.2
2.4
0.086
0.094
A1
0.9
1.1
0.035
0.043
A3
0.7
1.3
0.027
0.051
B
0.64
0.9
0.025
0.035
B2
5.2
5.4
0.204
0.212
B3
0.85
0.033
B5
0.3
0.035
B6
0.95
0.037
C
0.45
0.6
0.017
0.023
C2
0.48
0.6
0.019
0.023
D
6
6.2
0.236
0.244
E
6.4
6.6
0.252
0.260
G
4.4
4.6
0.173
0.181
H
15.9
16.3
0.626
0.641
L
9
9.4
0.354
0.370
L1
0.8
1.2
0.031
0.047
L2
0.8
1
0.031 0.039
V1
10°
10°
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of
use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by
implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to
change without notice. This publication supersedes and replaces all information previously supplied.
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© 2002 STMicroelectronics - Printed in Italy - All rights reserved.
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Type
Marking
Package
Weight
Base qty
Delivery mode
FLC01-200H
FLC01-200H
IPAK
0.40 g
75
Tube
FLC01-200B
FLC01-200B
DPAK
0.40 g
75
Tube
FLC01-200B-TR
FLC01-200B
DPAK
0.40 g
2500
Tape & reel
OTHER INFORMATION
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