THE FLUORACTOR
®
Y1112
FLUORESCENT LAMP STARTER SWITCH
●
●
●
V
(BR)
1200 to 1500 V
I
H
> 175 mA
I
GT
< 2 mA
K
A
G
TO-220 PACKAGE
(TOP VIEW)
1
2
3
description
This product is intended for use as a T8/T12
fluorescent tube starter switch on 200-240 V a.c.
supplies with tube sizes up to 5ft with leading
and lagging ballast circuits.
Pin 2 is in electrical contact with the mounting base.
MDC1ACA
absolute maximum ratings at 25°C case temperature (unless otherwise noted)
RATING
Crest working off-state voltage (Full wave rectified 50 Hz a.c.)
Peak reverse gate voltage
On-state current
— continuous
— repetitive peak
— non-repetitive peak
Peak gate current
Average gate power
Operating case temperature range
Storage temperature range
Lead temperature during soldering 1.6 mm from the case for 10 seconds
SYMBOL
V
DWM
V
RGM
I
T
I
TRM
I
TSM
I
GRM
P
G(av)
T
C
T
stg
T
lead
VALUE
375
6
1.5
2
10
0.5
0.3
-5 to +85
-10 to +110
230
A
W
°C
°C
°C
A
UNIT
V
V
electrical characteristics at 25°C case temperature (unless otherwise noted )
PARAMETER
I
D
V
T
V
(BR)
I
H
I
GTM
V
GTM
Off-state current
On-state voltage
Clamping voltage
Holding current
Peak gate
trigger current
Peak gate
trigger voltage
V
D
= V
DWM
I
T
= 2 A
I
BR
= 5 mA
See application circuit
V
AA
= 10 V
V
AA
= 10 V
R
L
= 10
Ω
R
L
= 10
Ω
t
p
< 200 µs, 2% duty cycle
1200
175
2
3
TEST CONDITIONS
T
j
= 65°C
MIN
TYP
MAX
1
3.1
1500
UNIT
mA
V
V
mA
mA
V
thermal characteristics
PARAMETER
R
θJA
R
θJC
Junction to free air thermal resistance
Junction to case thermal resistance
MIN
TYP
MAX
62.5
3.5
UNIT
°C/W
°C/W
JUNE 1984 - REVISED SEPTEMBER 2002
Specifications are subject to change without notice.
NOITAMROFNI
TCUDORP
1
THE FLUORACTOR
®
Y1112
FLUORESCENT LAMP STARTER SWITCH
applications data
The conventional method of starting fluorescent tubes employs the use of an electromechanical canister. This
consists of a bimetallic strip which opens as it cools and in conjunction with the ballast inductor, provides the
tube striking voltage. However, the random nature of the pulsing results in repeated striking attempts and
degradation of both the tube and starter. The tube degradation is illustrated by its progressively blackening
ends and ultimately required tube replacement.
The Y1112, “Fluoractor
®
”, has been specifically introduced for use in electronic starters. This unique device
offers the lighting industry an opportunity to develop electronic starters small enough to be retrofit
replacements for the established electromechanical canisters. Its double thyristor structure with integrated
zener clamp diode and current mirror provides the technology for a starter with enhanced features such as
controlled flicker free start up, automatic tube shutdown at end of tube life and reduced degradation of tube
ends leading to extended life. The increased functionality, lifetime and reliability of these starters has led in
some cases to them being embodied in the ballast itself, a development not feasible with the old
electromechanical canisters.
150 k
Ω
Y1112
R2
68 k
Ω
D1 to 4 (see Note A)
4 x 1N4007
R3
6.8 k
Ω
D5
D5 to 7
3 x 1N4001
D6
D7
FLSCCT1
Figure 1. Two terminal starter circuit
NOTE
1: These rectifiers need to be voltage selected for V
R
≥
V
(BR)max
+ 150 V
2
JUNE 1984 - REVISED SEPTEMBER 2002
Specifications are subject to change without notice.
NOITAMROFNI
TCUDORP
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