DS3992Z-09N+

Overview

The DS3992Z-09N+ is a four-channel cold-cathode fluorescent lamp (CCFL) controller manufactured by Analog Devices Inc./Maxim Integrated. Designed for surface-mount applications, it operates within a supply voltage range of 4.5V to 5.5V and supports an operating temperature range of -40°C to +85°C. The device features integrated dimming capabilities and draws a typical supply current of 8 mA. It is housed in a 16-pin SOIC package with a width of 150 mils, suitable for driving multiple CCFL channels in display backlighting systems.

Feature Summary

• Integrated control logic for managing four independent CCFL channels
• Supports variable brightness adjustment through digital pulse-width modulation dimming
• Operates reliably across extended industrial temperature ranges

Applications

• Backlight power supplies for liquid crystal displays
• Portable electronic device illumination systems
• Industrial display panel lighting controllers

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to potential availability constraints. Confirm that the specific suffix matches required specifications, as variations may exist within the product family. Check for RoHS compliance status and ensure the package type aligns with PCB design requirements before finalizing procurement decisions.

Selection Notes

Select this controller when designing multi-channel CCFL backlight drivers requiring precise intensity control. Ensure the input voltage supply remains stable between 4.5V and 5.5V to maintain proper operation. Consider thermal management strategies given the surface-mount packaging and operating environment constraints specified in the datasheet.

Part Context

This component belongs to the DS3992 series of CCFL controllers from Maxim Integrated, now part of Analog Devices. These devices are engineered specifically for powering cold-cathode fluorescent lamps in display applications. The series offers integrated solutions for high-voltage generation and lamp regulation, simplifying the design of efficient backlight systems for various electronic displays.

Replacement Considerations

Consult official documentation for qualified substitute part numbers within the same product family. Verify pin compatibility and electrical specifications before replacing existing components in established designs.