TL494CPWG4

DC DC Switching Controllers Overview

The TL494CPWG4 is a pulse-width modulation control circuit manufactured by Texas Instruments, housed in a 16-pin TSSOP package. It operates as a switching controller with voltage-mode control and supports multiple topologies including boost, buck, flyback, forward, push-pull, half-bridge, and full-bridge configurations. The device features two outputs capable of driving up to 200 mA at 40 V. It functions within a supply voltage range of 7 V to 40 V and supports switching frequencies from 1 kHz to 300 kHz. The maximum duty cycle is limited to 45%, and the component is rated for an operating temperature range of 0°C to 70°C.

DC DC Switching Controllers Feature Summary

• Integrates two error amplifiers for precise voltage and current feedback regulation
• Features a linear sawtooth oscillator with adjustable frequency via external components
• Includes a dedicated dead-time control comparator for output pulse optimization

DC DC Switching Controllers Applications

• Fixed-frequency PWM power supplies
• Dual-tube forward converter designs
• Half-bridge and full-bridge switch-mode power systems

DC DC Switching Controllers Procurement Notes

Verify the specific suffix G4 indicates lead-free compliance and RoHS adherence when sourcing. Confirm the 16-TSSOP package dimensions match your PCB footprint requirements. Ensure the commercial temperature grade (0°C to 70°C) aligns with your operational environment constraints before finalizing procurement.

DC DC Switching Controllers Selection Notes

Select this component for applications requiring dual-output PWM control with integrated error amplification. It is suitable for designs needing flexible topology support such as push-pull or forward converters. Consider the 45% maximum duty cycle limitation when designing high-voltage step-up circuits.

DC DC Switching Controllers Part Context

This part belongs to the TL494 family of PWM controllers, widely used in industrial and consumer power management. The CPWG4 variant specifically denotes the commercial temperature range and green (lead-free/RoHS) packaging in a TSSOP form factor, distinguishing it from industrial or SOIC variants.

DC DC Switching Controllers Replacement Considerations

TL494CDG4: Alternative in 16-SOIC package. TL494CNG4: Alternative in 16-PDIP package. Verify pinout compatibility and thermal performance differences between packages.