TL594IPWRG4

DC DC Switching Controllers Overview

The TL594IPWRG4 is a fixed-frequency PWM controller manufactured by Texas Instruments, housed in a 16-pin TSSOP package. It supports multiple switching topologies including boost, buck, flyback, forward, and push-pull configurations. The device features two output channels with a maximum output voltage of 40 V and an output current capability of 200 mA. Operating frequencies range up to 300 kHz, with a maximum duty cycle of 45 percent for single-ended modes. The unit operates within a supply voltage range of 7 V to 40 V and functions reliably across a temperature range of -40°C to +85°C.

DC DC Switching Controllers Feature Summary

• Supports versatile power converter topologies such as push-pull, flyback, forward, and half-bridge
• Integrates dual adjustable or synchronized output channels for flexible control schemes
• Includes built-in oscillator with external timing control for precise frequency setting

DC DC Switching Controllers Applications

• Central processing unit (CPU) power management systems
• General-purpose DC-to-DC converter designs
• Battery charger circuit implementations

DC DC Switching Controllers Procurement Notes

Verify the specific suffix G4 indicates lead-free compliance and RoHS standards before procurement. Confirm the TSSOP-16 package dimensions match the target PCB footprint. Ensure the operating temperature range aligns with environmental requirements. Check for obsolescence status as this component may be superseded by newer revisions.

DC DC Switching Controllers Selection Notes

Select this controller when designing converters requiring dual-channel synchronization or independent operation. Consider the 300 kHz maximum frequency limit for inductor sizing. Evaluate the 200 mA output drive capability against load requirements. Verify compatibility with the chosen switching topology regarding internal gate drive characteristics.

DC DC Switching Controllers Part Context

This component belongs to the TL594 series of PWM controllers, widely used in industrial and consumer power supplies. It serves as a direct replacement for the legacy MB39C190 and SN754510 devices. The G4 suffix denotes enhanced environmental compliance compared to earlier iterations.

DC DC Switching Controllers Replacement Considerations

The TL594CDR is a pin-compatible alternative available in SOIC-16 packaging. The TL594CN offers a through-hole PDIP-16 option for different mounting needs.