Texas Instruments

UCC3973PWTR

UCC3973PWTR Description

The UCC3973PWTR is a Cold Cathode Fluorescent Lamp (CCFL) controller from Texas Instruments, designed for applications requiring efficient and reliable backlighting solutions. This controller operates within a supply voltage range of 4.5V to 20V and can handle a supply current of 7 mA. It is optimized for surface-mount technology, making it suitable for compact and high-density PCB designs. The UCC3973PWTR supports an operating temperature range of 0°C to 70°C, ensuring stable performance in typical ambient conditions.

UCC3973PWTR Features

The UCC3973PWTR offers several key features that make it a robust choice for CCFL control applications:

• Frequency Range: The controller operates at a frequency range of 80kHz to 160kHz, providing flexibility in designing backlighting systems with varying power requirements.
• No Dimming: While it does not support dimming, this feature simplifies the design for applications where constant brightness is preferred.
• Compliance and Standards: The UCC3973PWTR is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and safety standards for electronics manufacturing.
• Packaging and Handling: Available in bulk packaging, it is ideal for large-scale production. The moisture sensitivity level (MSL) of 2 (1 Year) ensures the device remains stable during storage and handling.
• ECCN and HTSUS: Classified under ECCN EAR99 and HTSUS 8542.39.0001, it facilitates straightforward export and import processes.

UCC3973PWTR Applications

The UCC3973PWTR is particularly well-suited for applications that require reliable and efficient CCFL control, such as:

• LCD Backlighting: Ideal for backlighting in LCD displays, ensuring consistent brightness and efficient power usage.
• Industrial Displays: Suitable for industrial applications where durability and reliability are paramount.
• Consumer Electronics: Can be used in various consumer electronics that utilize CCFL backlighting for displays.

Conclusion of UCC3973PWTR

The UCC3973PWTR from Texas Instruments is a versatile and reliable CCFL controller, offering a wide operating voltage range, stable performance across a specified temperature range, and compliance with industry standards. While it does not support dimming, its simplicity and robustness make it an excellent choice for applications requiring consistent brightness. The surface-mount design and bulk packaging options further enhance its suitability for high-volume production. Despite its obsolete status, the UCC3973PWTR remains a valuable component for legacy systems and specific applications where its features are well-suited.