THE FLUORACTOR® Y1112L FLUORESCENT LAMP STARTER SWITCH ● V(BR) 1200 to 1500 V ● IH > 175 mA ● IGT < 2 mA L PACKAGE (TOP VIEW) 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 5 ft with leading and lagging ballast circuits. K 1 A 2 G 3 Pin 2 is in electrical contact with the heat slug. MDXXAO absolute maximum ratings at 25°C case temperature (unless otherwise noted) RATING SYMBOL VALUE Crest working off-state voltage (Full wave rectified 50 Hz a.c.) VDWM 375 V Peak reverse gate voltage VRGM 6 V IT 1.5 On-state current — continuous E T E L O S B O UNIT — repetitive peak ITRM 2 — non-repetitive peak ITSM 10 IGRM 0.5 A PG(av) 0.3 W °C Peak gate current Average gate power A Operating case temperature range TC -5 to +85 Storage temperature range Tstg -10 to +110 °C Tlead 230 °C Lead temperature during soldering 1.6 mm from the case for 10 seconds electrical characteristics at 25°C case temperature (unless otherwise noted ) PARAMETER TEST CONDITIONS ID Off-state current VT On-state voltage V(BR) Clamping voltage IH IGTM VGTM Holding current Peak gate trigger current Peak gate trigger voltage VD = VDWM MIN Tj = 65°C IT = 2 A I(BR) = 5 mA tp < 200 µs, 2% duty cycle See application circuit 1200 TYP MAX UNIT 1 mA 3.1 V 1500 V 175 mA VAA = 10 V RL = 10 Ω 2 mA VAA = 10 V RL = 10 Ω 3 V MARCH 1998 - REVISED SEPTEMBER 2002 Specifications are subject to change without notice. 1 THE FLUORACTOR® Y1112L 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 Y1112L, “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. E T E L O S B O R1 150 kΩ R6 330 kΩ D1 to 4 (see Note 1) ΤΗ2 A G K R2 68 kΩ R3 6.8 kΩ R4 270 kΩ Y1112L D5 D8 D6 R5 4.7 kΩ D7 C1 100 µF Figure 1. Two terminal starter circuit NOTE 1: These rectifiers need to be voltage selected for VR ≥ V(BR)max + 150 V 2 MARCH 1998 - REVISED SEPTEMBER 2002 Specifications are subject to change without notice.