ZXLD1100H6TA

Overview

The ZXLD1100H6TA is a PFM inductive boost converter designed for driving white LEDs. It operates from an input supply of 2.5V to 5.5V, providing adjustable output current up to 50mA. The device features an internal 30V NDMOS switch and peak current sense resistor, supporting a maximum output voltage of 28V. Key electrical parameters include a typical quiescent current of 60μA and a maximum shutdown current of 500nA. Switching frequency reaches up to 1MHz. It utilizes a low-profile SC70-6 package.

Feature Summary

• Integrates an internal 30V NDMOS switch with peak current sensing and open circuit protection capabilities.
• Supports true analog dimming via PWM signals with an internal filter for flicker-free output.
• Operates with high efficiency and requires low external component count due to integrated switching elements.

Applications

• Mobile phones
• Digital cameras
• LCD modules

Procurement Notes

Verify the specific suffix H6TA against official Diodes Incorporated documentation to confirm pinout and thermal characteristics. Ensure compatibility with the target PCB footprint for the SC70-6 package. Cross-reference the datasheet revision date to validate parameter accuracy before finalizing design integration.

Selection Notes

Select this component for applications requiring a compact solution for driving series-connected white LEDs from low-voltage sources like Li-Ion cells or 5V supplies. Consider its 50mA current limit and 28V max output voltage when sizing the LED string. Evaluate the 60μA quiescent current impact on battery life for portable devices.

Part Context

This part belongs to the ZXLD1100 family of adjustable LED drivers manufactured by Diodes Incorporated. The H6TA designation typically indicates specific tape-and-reel packaging and variant specifications within the broader product line, sharing core functional architecture with other members like the standard ZXLD1100.

Replacement Considerations

Direct substitutes may include other ZXLD1100 variants such as ZXLD1100H6 or ZXLD1100H6TC, provided they match the required package and electrical ratings. Verify pin compatibility and thermal performance before substitution.