Datasheet FLC10-200H Datasheet (SGS Thomson Microelectronics)



Application Specific Discretes

A.S.D.

FEATURES

n DEDICATED THYRISTOR STRUCTURE FOR

CAPACITANCE DISCHARGE IGNITION
OPERATION

n HIGH PULSE CURRENT CAPABILITY

240A @tp= 10µs

BENEFITS

n SPACE SAVING THANKS TO MONOLITHIC

FUNCTION INTEGRATION

n HIGH RELIABILITY WITH PLANAR

TECHNOLOGY

TM

FLC10-200H

FIRE LIGHTER CIRCUIT

TAB

3

2

1

IPAK

DESCRIPTION

The FLC10 series have been developed espe­cially for high powercapacitance dischargeopera­tion. The main applications are gas lighter or
ignitor such as :
cookers / gas boilers / gas hobs...

It uses a high performance planar diffused tech­nology adapted to high temperature and rugged
environmental conditions.

Th : Thyristor for switching operation.
Z : Zener diode to set the thresholdvoltage.
D : Diodefor reverseconduction.
R :2kΩresistor.

FUNCTIONAL DIAGRAM

pin 2

Z

Th

D

R

pin 1/3 (*)

(*)Pin1 and Pin3 must be shorted together in
the application circuit layout.

Jun 2000 - Ed: 5D

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FLC10-200H

ABSOLUTE RATINGS (limiting values)

Symbol Parameter Value Unit

I

TRM

I

FRM

dI/dt
Tstg

Tj

Repetitive surge peak on state current for thyristor

-30°C ≤ T

amb

≤ 120°C

Repetitive surge peak on state current for diode

-30°C ≤ T

amb

≤ 120°C
Critical rate of rise time on state current -30°C ≤ T
Storage junction temperature range

Maximum junction temperature

amb

tp =10µs

( note 1)

≤ 120°C

240 A

200 A/µs

- 40 to + 150
+ 125

Toper Operating temperature range -30 + 120 °C

T

L

Note 1: Test current waveform

Maximum lead temperature for soldering during 10s 260 °C

10µs

200ms

°C

THERMAL RESISTANCE

Symbol Parameter Value Unit

Rth(j-a) Thermal resistance junction to ambient 100 °C/W

ORDERING INFORMATION

FLC 10 - 200 H

RM

200: V = 200V

FIRE LIGHTER CIRCUIT

CIRCUIT NUMBER:
SCR + diode + Zener + Resistance
High PowerVersion

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PACKAGE H: IPAK

FLC10-200H

ELECTRICAL CHARACTERISTICS

Symbol Parameters

V

V

V

V
I
I

RM

αT

RM

BO

T

F

BO

Stand-off voltage
Breakover voltage

On-state voltage
Diode forward voltagedrop
Breakover current
Leakage current
Temperature coefficient for V

BO

V

BO

V

RM

I

I

F

V

T

I

RM

I

BO

I

V

F

T

DIODE (D) PARAMETER

Symbol Test Conditions Value Unit

V

F

IF=2A tp≤500µsTj=25°C Max. 1.7 V

THYRISTOR (Th) and ZENER (Z) PARAMETERS

V

Symbol Test conditions Min Typ Max Unit

I

RM

VRM= 200 V Tj =25°C10µA

Tj = 125°C 100 µA

V

BO

I

BO

V

T

at I
at V

BO

BO

Tj =25°C 200 225 250 V
Tj =25°C 0.5 mA

IT=2A tp≤500µsTj=25°C 1.7 V

αT 0.3 V/°C

Fig.1: Relative variation of breakover current
versus junctiontemperature.

k = I (Tj) / I (25°C)BO BO

2.5

2

1.5

1

0.5

0

-20 0 20 40 60 80 100

Tj (°C)

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FLC10-200H

Fig. 2: BASIC APPLICATION

Rs Ds

AC

Ic

Ic

t

c

Th

Z

MAINS

The applications of the lighter using the capaci­tance discharge topology operate in 2phases :

PHASE 1

The energy coming from the mains is stored into
thecapacitorC.Forthat, theACvoltageis rectified
by the diode Ds.

COMPONENT CHOICE

D

R

PHASE 2

At the end of the phase 1, the voltage across the
capacitor C reaches the avalanche threshold of
the zener. Thena current flowsthrough 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 t he primaty of the HV transformer.

RS RESISTOR CALCULATION

The Rs resistor allows, in addition with th e capacitor C, to adjust the spark frequency and to limi t the
current from themains. Itsvalue shall allow the thyristor Th tofireeven in worst case conditions. Inthis
borderline case, thesystem must fire with the lowest value of RMS mains voltage whilethe breakdown
voltage and current of the FLC are at the maximum.

The maximumRs value is equal to :

Rs

max

( min. ) [ max .( .( ))]

AC BO amb

=

−+−2125α

kI

.*

BO

VVTT

* : see fig 1

4/7

Fig. 3 : Spark frequency versus Rs and C

FLC10-200H

F (Hz)

20

10

5

3
2

1

4.7 6.8 10 12 15 18 22 27 30

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

Vac=220Vrms,Vbo=225V,Tamb=25°C

C=0.47

C=0.47

µ

µ

F

F

C=1

C=1

µ

µ

F

F

µ

µ

F

F

C=3.3

Ω

Rs (k )

C=2.7

µ

F

C=2.2

µ

F

C=1.5

C=1.5

µ

F

mains is minimum. The next curve shows the be­havior with Rs=15kΩ and C=1µF.

Fig. 4: Voltage across the capacitance with Rs = 15kΩ,C=1µF and VBO= 225V.

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FLC10-200H

PEAK CURRENT LIMIT

This co mponen t i s des igned t owiths tan d
I

= 240A for a pulse duration of 10µsforan

TRM

ambient temperature of120°C inrepetitivesurge
(see note 1, page 2).

Fig. 5: Peak current limit versus pulse duration.

I (A)

TRM

300
280
260
240
220
200

The curv e of peak current v ers us th e pulse
duration allows us t o verify if the application
is w ithin the FLC operating limit.

Tj max :120°C

180

6 8 10 12

tp (µs)

POWER LOSSES (For 10µs, see note1)

To evaluate the power losses, please use the following equations :

For the thyristor : P = 1.18 x I
For the diode : P = 0.67 x I

F(AV)

T(AV)

+ 0.106 I

+ 0.035 I

2

T(RMS)

2

F(RMS)

14

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PACKAGE MECHANICAL DATA

IPAK

E

B2

H

L1

L

B6

G

L2

B3
B

V1

B5

FLC10-200H

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

A

C2

A1

C
A3

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

D

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°

Type Marking Package Weight Base qty Delivery mode

FLC10-200H

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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 replacesall information previously supplied.
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FLC10-200H IPAK 0.350g 75 Tube

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