UCC2973PWG4

Overview

The UCC2973PWG4 is a cold cathode fluorescent lamp (CCFL) driver controller manufactured by Texas Instruments. It is designed for use in LED and lighting driver applications, specifically supporting CCFL backlighting systems. The component operates within a supply voltage range of 3V to 5.5V and features an internal oscillator with adjustable frequency control via an external resistor. It integrates high-voltage gate drivers capable of driving up to four CCFL lamps simultaneously. The device includes protection mechanisms such as open-lamp detection and thermal shutdown to ensure system reliability. It is housed in an 8-pin TSSOP package.

Feature Summary

• Integrates high-voltage gate drivers for multi-lamp CCFL backlighting
• Includes open-lamp detection and thermal shutdown protection
• Features adjustable frequency control through external components

Applications

• CCFL backlighting for LCD displays
• LED lighting driver circuits
• Portable electronic display systems

Procurement Notes

Verify the exact ordering suffix 'G4' against the manufacturer's current datasheet to confirm lead-free compliance and package specifications. Ensure the TSSOP-8 footprint matches the target PCB design. Cross-reference the part number with official Texas Instruments documentation to confirm availability status and any recent product change notifications before finalizing procurement plans.

Selection Notes

Select this component for designs requiring integrated control for multiple CCFL lamps with built-in safety features. Consider the operating temperature range and supply voltage requirements relative to the system power architecture. Evaluate the need for external timing components for frequency adjustment and ensure the thermal management strategy aligns with the device's shutdown characteristics.

Part Context

This part belongs to the UCC2973 family of CCFL driver controllers from Texas Instruments. It is categorized under power management ICs and specifically targets lighting applications. The 'G4' suffix typically indicates a lead-free and RoHS-compliant version of the standard UCC2973 device, adhering to environmental standards while maintaining functional equivalence with the base model.

Replacement Considerations

Direct substitutes may include other Texas Instruments CCFL controllers within the same family or compatible legacy parts. Verify pin compatibility and electrical parameters when considering alternatives. Check for updated revisions or end-of-life notices from the manufacturer to ensure long-term supply chain stability.