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

Description

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

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