LA78040B The Vertical Deflection Output IC With Bus Control Support for TVs and CRT Display TO-220-7

LA78040B The Vertical Deflection Output IC With Bus Control Support for TVs and CRT Display TO-220-7 The LA78040B is a vertical deflection output IC for TVs and CRT displays with excellent image quality that use a BUS control system signal processing IC. This IC can drive the direct (even including a DC component) deflection yoke with the saw tooth wave output from the BUS control system signal processing IC. Features : • Low Power Dissipation: Equipped with a built-in pump-up circuit that minimizes power consumption, making it energy-efficient. • Integrated Vertical Output Circuit: Simplifies design by incorporating essential vertical deflection components into a single IC. • Built-in Thermal Protection Circuit: Ensures safe operation by protecting the IC from overheating, enhancing longevity and reliability. • Excellent Crossover Characteristics: Provides smooth transitions and reduces distortion, contributing to high-quality image reproduction. Specifications : Note: Current flowing into the IC is positive (+) and current flowing out is negative (-). Parameter | Symbol | Conditions | Ratings | Unit Maximum Ratings Pump-up block supply voltage | +B2 max | – | 34 | V Output block supply voltage | +B6 max | – | 70 | V Allowable power dissipation | Pd max | Mounted on an arbitrarily large heat sink | 9 | W Deflection output current | I5 max | – | -1.4 to +1.4 | A p-o Thermal resistance | θj-c | – | 3 | °C/W Operating temperature | – | – | -20 to +85 | °C Storage temperature | Tstg | – | -40 to +150 | °C Operating Conditions Recommended supply voltage | +B2 | – | 24 | V Operating supply voltage range | +B2 op | – | 16 to 33 | V Deflection output current | I5 p-p | – | up to 1.8 | A p-p Operating Characteristics Deflection output saturation voltage (lower) | Vsat5-4 | I5 = 0.9 A | – – 1.3 | V Deflection output saturation voltage (upper) | Vsat6-5 | I5 = -0.9 A | – – 3.2 | V Pump-up charge saturation voltage | Vsat3-4 | I3 = 20 mA | – – 1.8 | V Pump-up discharge saturation voltage | Vsat2-3 | I3 = -0.9 A | – – 3.0 | V Idling current | Idl | – | 20 – 50 | mA Midpoint voltage | Vmid | – | 11.0 12.0 13.0 | V Applications : • Televisions (TVs) • CRT Displays • Bus Control Systems DataSheet : • LA78040B