AS3693B-ZTQT

Overview

The AS3693B-ZTQT is a linear LED driver IC manufactured by ams OSRAM, designed for LCD backlight applications. It features 16 output channels with an output current of 70 mA and a maximum output voltage of 50 V. The device operates within a temperature range of -20°C to +85°C and is housed in a 64-TQFP package with an exposed pad. It supports I2C interface control for precise regulation.

Feature Summary

• Provides 16 independent output channels for high-precision LED driving
• Supports I2C digital interface for configuration and control
• Linear topology suitable for LCD backlight power management

Applications

• LCD panel backlighting systems
• Display driver circuits requiring multi-channel regulation
• Consumer electronics display modules

Procurement Notes

This component is officially listed as obsolete or end-of-life by the manufacturer. Availability is restricted to surplus distributors or secondary markets. Verify part authenticity and storage history carefully due to potential age-related degradation. Confirm package integrity and lead condition before integration into new designs.

Selection Notes

Select this part only if legacy compatibility or specific 16-channel linear drive requirements are necessary. Consider pin-compatible alternatives from the same family if available. Evaluate thermal performance within the 64-TQFP package constraints. Ensure I2C bus timing matches system controller capabilities.

Part Context

Part of the AS3693 series of LED drivers from ams OSRAM, optimized for LCD backlight applications. The series includes variants like AS3693A and AS3693B in different packages such as QFN and TQFP. These devices integrate precision current sources and control interfaces for display uniformity.

Replacement Considerations

AS3693B-QNFT is a documented alternative in the same product family offering similar functionality in a QFN package.