TDA8178

TDA8178S TV VERTICAL DEFLECTION BOOSTER . . . . POWER AMPLIFIER FLYBACK GENERATOR THERMAL PROTECTION REFERENCE VOLTAGE DESCRIPTION Designed for monitors and high performance TVs, the TDA8178S vertical deflection booster delivers flyback voltages up to 90V. The TDA8178S operates with supplies up to 42V and provides up to 2App output current to drive to yoke. The TDA8178Sis offered in HEPTAWATT package PIN CONNECTIONS HEPTAWATT (Plastic Package) ORDER CODE : TDA8178S 7 6 5 4 3 2 1 Reference Voltage Output Stage Supply Output GND Flyback Generator Supply Voltage Inverting Input Tab connected to pin 4 8178S-01.EPS May 1993 1/6 TDA8178S BLOCK DIAGRAM + VS 2 6 3 FLYBACK GENERATOR 1 POWER AMPLIFIER 5 YOKE 7 REFERENCE VOLTAGE 4 THERMAL PROTECTION APPLICATION CIRCUIT (VS = 42V) + VS 2 6 3 1 TDA8178S 5 7 YOKE 4 Note : For values see ”Easy Design of Vertical Deflection Stages” (software available from our sales offices) 2/6 8178S-03.EPS 8178S-02.EPS TDA8178S ABSOLUTE MAXIMUM RATINGS Symbol VS V5 , V6 V1 , V7 IO Supply Voltage (pin 2) Flyback Peak Voltage Amplifier Input Voltage Output Peak Current Non-repetitive, t = 2ms f = 50 or 60Hz, t ≤ 10µs f = 50 or 60Hz, t > 10µs I3 Ptot Tstg Tj Pin 3 DC at V5 < V2 Pin 3 Peak Flyback Current at f = 50 or 60Hz, tfly ≤ 1.5ms Total Power Dissipation at TC = 70 C Storage Temperature Junction Temperature o Parameter Value 50 100 + VS Unit V V A 2 2 1.8 100 1.8 20 - 40, + 150 0, +150 mA A o o C C THERMAL DATA Symbol ...