Texas Instruments

TL494IDG4  

DC DC Switching Controllers

TL494IDG4 Description

The TL494IDG4 from Texas Instruments is a versatile pulse-width modulation (PWM) controller designed for DC-DC switching regulator applications. Housed in a 16-SOIC package, this IC delivers robust performance with a wide supply voltage range (7V to 40V) and switching frequency adjustable from 1kHz to 300kHz. It features two transistor driver outputs in a positive output configuration, making it suitable for push-pull or single-ended topologies. The TL494IDG4 is RoHS3 compliant and REACH unaffected, ensuring environmental and regulatory compliance.

TL494IDG4 Features

• Precision PWM Control: Adjustable dead time control and frequency control for optimized power efficiency.
• Dual Output Drivers: Supports two NPN transistors for flexible power stage design.
• Wide Operating Range: 7V to 40V input accommodates diverse power supply designs.
• High Switching Frequency: Up to 300kHz for compact magnetics and fast transient response.
• 45% Maximum Duty Cycle: Ensures stable operation in voltage regulation applications.
• Surface-Mount Package (SOIC-16): Ideal for space-constrained PCB layouts.
• No Synchronous Rectification or Clock Sync: Simplified design for cost-sensitive applications.

TL494IDG4 Applications

The TL494IDG4 excels in switch-mode power supplies (SMPS), DC-DC converters, and inverter systems. Its dead time control makes it ideal for half-bridge and full-bridge topologies, while its wide voltage range suits industrial, automotive, and telecom power systems. Common use cases include:

• AC/DC and DC/DC power supplies
• Uninterruptible Power Supplies (UPS)
• Motor control circuits
• Solar inverters and battery chargers
• LED drivers and high-efficiency voltage regulators

Conclusion of TL494IDG4

The TL494IDG4 is a highly reliable, cost-effective PWM controller with flexible control features and broad compatibility across power conversion applications. Its robust design, wide voltage range, and adjustable frequency make it a preferred choice for engineers developing efficient, compact power solutions. Whether used in industrial automation, renewable energy, or consumer electronics, the TL494IDG4 delivers precision, durability, and performance.

TL494IDG4 Documents

Download datasheets and manufacturer documentation for TL494IDG4

Datasheets :

TL494 Datasheet