TA8026AP TOSHIBA | Alldatasheet

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TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC The TA8026AP is designed as an automotive flasher controller. It can issue a rapied-flashing warning when a lamp failure occurs. It operates accurately in wide ranges of supply voltages and operating temperatures. It incorporates an accurate reference voltage circuit which compensates for lamp current characteristic variations due to supply voltage changes. @ Large output current : IQUuT=300mA (Max.) @ Low standby current = Icc=1.0mA (Typ.) @ Reference voltage characterized by small temperature drift. DIP8-P-300-2.54A, @ Built-in circuit that compensates for variations in lamp Weight : 0.45g (Typ.) voltage characteristics. @ Output from combination of PNP and NPN transistors with suppression diode. @ Wide operating temperature : Ta= -40 to 110°C @ DIP -8 pin. BLOCK DIAGRAM AND PIN LAYOUT IN st Veer RT 0) Q © © |} = Input Voltage putter osc Detector Sensing @ @ @ ©) GND Vece out cr

961001 EBAZ

@ TOSHIBA is continually working to improve the quality and the reliability of its products. Nevertheless, semiconductor devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to observe standards of safety, and to avoid situations in which a malfunction or failure of a TOSHIBA product could cause loss of human life, bodily injury or damage to property. In developing your designs, please ensure that TOSHIBA products are used within specified Operating ranger az set forth in the most recent products epecificatione. Aleo, pleaze keep in mind the precautions and conditions set forth in the TOSHIBA Semiconductor Reliability Handbook. @ The products described in this document are subject to foreign exchange and foreign trade control laws. @ The information contained herein is presented only as a guide for the applications of our products. No responsibility is assumed by TOSHIBA CORPORATION for any infringements of intellectual property or other rights of the third parties which may result from its use. No license is granted by implication or otherwise under any intellectual property or other rights of TOSHIBA CORPORATION or others @ The information contained herein is subject to change without notice. 1997-12-17 1/6

} PIN No. | SYMBOL DESCRIPTION [7 [end [Grounded——SOSSCCCCCCCSCSCSCSCY Vec2__ | Power supply pin (2) 3 out Open-emitter output of complementary combination of PNP and NPN transistors. A capacitor is connected between Vcc and CT. This layout determines the cT a flashing interval of the flasher. RT A resistor is connected between RT and CT. This layout determines the flashing interval of the flasher. [6 Veer [Power supply pin Current detection pin. The lamp current is detected through a shunt resistor 7 ST connected between Vcc1 and ST. [| 8 | IN ____ [Detection pin for lamp operation. TIMING CHART Standby Normal Break Vee IN On OUT oft 1997-12-17 2/6

MAXIMUM RATINGS (Ta = 25°C) CHARACTERISTIC SYMBOL RATING UNIT Supply Voltage [Power Dissipation | Pp | 300» | mw | lout Input Voltage -0.3~Vcc Operating Temperature |Top [| =40~110 | °c _| 260 (105) * TaS 110°C ELECTRICAL CHARACTERISTICS (Vcc = 12V, Ta= -40 to 110°C) CHARACTERISTIC SYMBOL | pin | TEST CONDITION | min. | tye. | max. UNIT Operating Voltage | Voor [Vcc [| | ~ [tf A : Standby, Ta = 25°C | 06] 09] 1.4] Current Consumption lec GND Output on, Ta=25°C 25} 40] 60] mV [Output Voktage | Von | OUT |m=a0 + | — | — | ta] v | Leakage Current VouT=0v 700 = — [aa] [ct [Vin=Vec~Vec-5v | -10{ — | 10] Vin=V | -10[ — | 10) pa Input Current wetzv = | = 20] Min=ov +f -18[ -25[ -35| mA | ee ee Input Voltage hy | xv a Od [Vec=sv_ Tt Tt 2 Vii [vec=tv__| 25 31] 37] mv Detection Voltage a a TT AVTH/ AVcc 27| 3.3 mv condition b Condition Detect | vio | st [Vecsttv_———— | a0 15) mv 3 [Vec=tev | 138 Flashing Intewal_ [|__| OUT | [680 | 706 | 723] Flashing Interval OUT 324 333 (At fail detection) Cr =3.3uF, RT=AD) *2 Jon Duty || ur | 45] so] 55] On Duty % *1 : The minimum detection voltage to be able to operate. *2.: Adjust the flashing interval to 706ms by changing RT while keeping Cy =3.3uF at room temperature. 1997-12-17 3/6

200 FLASHING FREQUENCY CHARACTERISTICS DETECTION VOLTAGE CHARACTERISTICS

zim. t iT Tt? | @ 4 eee ee a | | [EP tt ~ pi fey ttt . Lit tT et ay 50 100 150 200 8 10 12 14 16 18 DETECTION VOLTAGE (mV) vec ) 1997-12-17

EXAMPLE OF APPLICATION CIRCUIT Key vet aT 7 zh 1 @ o) sw J TA8026AP GND Vec2 out co a a 5 wake Bee [32 Note : The tolerance of R1 and R2 is within +5%. 1997-12-17 5/6

DIP8-P-300-2.54A Unit : mm yt Ch C1 bd | alg >) g _2 | > $F eee vy CI CI CJ CI U i 4 ° 10.1MAXx a a i) jit — Vf pa) 8 MIE Pts 8 z bid | ieee 3 pa —s oO O.99TvP 0.540. 1a EG 1.240.1 Weight : 0.45g (Typ.) 1997-12-17 6/6