The TL494 is a fixed-frequency pulse width modulation control circuit designed for switch mode power supplies. It features on-chip error amplifiers, a 5.0 V reference, adjustable deadtime, and uncommitted output transistors rated to 500 mA. Suitable for power regulation, this PWM controller supports push-pull or single-ended operation, with undervoltage lockout and internal oscillator for precise frequency control. It is widely used in power converters, switching regulators, and industrial control systems to ensure efficient and reliable voltage regulation.
Collector Output Current: 500 mA (each transistor)
On-Chip 5.0 V Reference, Accuracy ±5%
Oscillator Frequency: 1.0 kHz to 200 kHz, programmable by external resistors and capacitors
Maximum Power Dissipation: 1000 mW at Ta < 45°C
Operating Temperature Range: TL494B 40°C to +125°C, TL494C 0°C to +70°C, TL494D 40°C to +85°C
Input Voltage Range: -0.3 V to 42 V
Output Rise and Fall Time: 100 to 200 ns
Undervoltage Lockout with turn-on threshold approximately 7V
Available in SOIC-16, PDIP-16 packages, Pb-Free options available.
Buy the Buy ON Semiconductor TL494 Part Number CDR2G Online
Purchase the ON Semiconductor TL494 PWM controller online today to ensure efficient, reliable power regulation in your switching power supplies. Featuring on-chip error amplifiers, a 5V reference, adjustable deadtime control, and high-current transistors, this circuit is suitable for push-pull or single-ended configurations. Its internal oscillator provides precise frequency control, making it ideal for power conversion, industrial automation, and regulation tasks. Enjoy quick delivery, trusted quality, and technical support when buying online now.
Buy ON Semiconductor TL494C now and experience unmatched reliability and high-performance pulse width modulation for switch mode power supplies.
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