GL494 Datasheet | SK Hynix

PWM CONTROL CIRCUIT Description The GL494 incorporates on a single monolithic chip all the functions required in the construction of a pulse-widthmodulation control circuit. Designed primarily for power supply control, the GL494 contains an on-chip 5-volt regulator, two error amplifiers, adjustable oscillator, deadtime control parator, pulse-steering flip-flop, and output-control circuitry. The unmitted output transistors pro-vide either mon-emitter or emitterfollower output capability. Push-pull or single-ended output operation may be selected through the outputcontrol function. The ar-chitecture of the GL494 prohibits the possibility of either output being pulsed...