Texas Instruments TL494 PWM Control Circuit TL494CDRG3

The TL494CDRG3 is a pulse-width modulation (PWM) control circuit designed for power supply control applications. It integrates two error amplifiers, an adjustable oscillator, a dead-time control comparator, and output control circuits on a single chip. The device supports both push-pull and single-ended output configurations, with uncommitted output transistors capable of sourcing or sinking up to 200 mA. It features a 5-V precision regulator with a tolerance of 5%, and the dead-time control comparator provides approximately 5% dead time. The TL494 operates over a temperature range of 0°C to 70°C, making it suitable for various applications, including desktop PCs, power supplies, and solar inverters. The device is available in multiple package options, including SOIC, PDIP, and TSSOP.