AS3693E-ZTFT

Overview

The AS3693E-ZTFT is a DC-DC controller IC designed for LED lighting applications, specifically serving as an LCD backlight driver. Manufactured by ams OSRAM USA INC., this component features sixteen non-isolated outputs capable of delivering up to 70 mA per channel. It operates within an output voltage range of 0.4 V to 50 V and supports a wide operating temperature range from -20°C to +85°C. The device is housed in a QFN-48 package and utilizes PWM control for precise brightness regulation.

Feature Summary

• Integrated DC-DC controller architecture optimized for driving multiple LED channels simultaneously
• Supports pulse-width modulation (PWM) for accurate digital brightness control
• Designed with sixteen independent output channels for complex display backlighting configurations

Applications

• LCD panel backlight drivers for mobile devices
• Industrial display systems requiring multi-channel LED control
• Automotive interior lighting modules

Procurement Notes

Verify current availability status as the part may be discontinued or subject to limited supply constraints. Confirm RoHS compliance documentation and material composition declarations prior to integration. Ensure compatibility with existing PCB footprints and thermal management requirements for the QFN-48 package. Check for end-of-life notifications from the manufacturer to assess long-term viability for new designs.

Selection Notes

Select this component when designing systems requiring sixteen synchronized LED channels with high precision. Consider the 50 V maximum output voltage limit and 70 mA current capability against load requirements. Evaluate the QFN-48 package size against board space constraints. Verify that the operating temperature range meets environmental conditions. Compare against alternative controllers if higher channel counts or different isolation requirements are needed.

Part Context

This IC belongs to the AS3693 series of LED drivers from ams OSRAM, which focuses on visualization solutions. The series includes variants like the AS3693A and AS3693E, differing primarily in specific electrical characteristics or packaging options. These components are part of the broader power management portfolio aimed at enhancing display quality through efficient light emission control.

Replacement Considerations

Direct substitutes include other models within the AS3693 family, such as the AS3693A, provided pinout and electrical specifications match. Cross-reference datasheets for any differences in output current limits or control interfaces before substitution.