THE FLUORACTOR® Y1112
FLUORESCENT LAMP STARTER SWITCH
JUNE 1984 - REVISED SEPTEMBER 1997Copyright © 1997, Power Innovations Limited, UK
● V
● I
● I
description
1200 to 1500 V
(BR)
> 175 mA
H
< 2 mA
GT
This product is intended for use as a T8/T12
TO-220 PACKAGE
(TOP VIEW)
K
A
G
1
2
3
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.
absolute maximum ratings at 25°C case temperature (unless otherwise noted)
RATING SYMBOL VALUE UNIT
Crest working off-state voltage (Full wave rectified 50 Hz a.c.) V
Peak reverse gate voltage V
On-state current — continuous
— repetitive peak
— non-repetitive peak
Peak gate current I
Average gate power P
Operating case temperature range T
Storage temperature range T
Lead temperature during soldering 1.6 mm from the case for 10 seconds T
DWM
RGM
I
TRM
I
TSM
GRM
G(av)
I
T
C
stg
lead
MDC1ACA
375 V
6 V
1.5
2
10
0.5 A
0.3 W
-5 to +85 °C
-10 to +110 °C
230 °C
A
electrical characteristics at 25°C case temperature (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
I
V
Off-state current VD = V
I
D
On-state voltage IT= 2 A 3.1 V
V
T
Clamping voltage IBR = 5 mA tp< 200 µs, 2% duty cycle 1200 1500 V
(BR)
Holding current See application circuit 175 mA
I
H
Peak gate
GTM
trigger current
Peak gate
GTM
trigger voltage
DWM
= 10 V RL= 10 Ω 2 mA
V
AA
= 10 V RL= 10 Ω 3 V
V
AA
Tj = 65°C 1 mA
thermal characteristics
PARAMETER MIN TYP MAX UNIT
R
R
Junction to free air thermal resistance 62.5 °C/W
θJA
Junction to case thermal resistance 3.5 °C/W
θJC
PRODUCT INFORMATION
Information is current as of publication date. Products conform to specifications in accordance
with the terms of Power Innovations standard warranty. Production processing does not
necessarily include testing of all parameters.
1
THE FLUORACTOR® Y1112
FLUORESCENT LAMP STARTER SWITCH
JUNE 1984 - REVISED SEPTEMBER 1997
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
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.
”, has been specifically introduced for use in electronic starters. This unique device
D1 to 4 (see Note A)
4 x 1N4007
Figure 1. Two terminal starter circuit
NOTE 1: These rectifiers need to be voltage selected for VR ≥ V
(BR)max
+ 150 V
150 k
ΩΩ
Y1112
R2
68 k
R3
6.8 k
ΩΩ
ΩΩ
D5
D5 to 7
3 x 1N4001
D6
D7
PRODUCT INFORMATION
2