THL3512

Overview

The THL3512 is an LED driver featuring 24 independent open-drain outputs, each capable of sinking up to 100mA with a maximum output voltage of 40V. It utilizes an embedded oscillator and PWM controller to generate 256-step brightness levels per channel. The device supports high-speed serial communication via two-wire Serial LVDS or three-wire Serial CMOS inputs, operating at speeds up to 10 Mbps. It includes protection mechanisms such as UVLO, overcurrent protection, and thermal shutdown, functioning within a supply voltage range of 3.0V to 5.5V.

Feature Summary

• Provides 24 independent channels for individual LED control with adjustable brightness steps
• Supports dual input interface options including low-voltage differential signaling and standard CMOS levels
• Integrates comprehensive protection features against under-voltage, overcurrent, and thermal events

Applications

• Multi-string LED backlighting for large-format displays
• Signage applications requiring high-channel count control
• LED drivers utilizing cascade or multi-drop connection topologies

Procurement Notes

Verify the specific package variant, typically QFN-48 with exposed pad, against project requirements. Confirm that the design accommodates the required LVDS or CMOS interface signals. Ensure thermal management strategies align with the device's thermal shutdown specifications during operation. Validate component authenticity through authorized distribution channels to guarantee performance reliability.

Selection Notes

Select this component when a high channel count is necessary for uniform LED array illumination. Consider its compatibility with existing display controllers supporting LVDS or serial protocols. Evaluate the power budget to ensure the 100mA per channel limit meets load requirements. Assess board space constraints regarding the QFN package dimensions and thermal pad exposure needs.

Part Context

This part belongs to THine Solutions' LED driver family designed for complex lighting architectures. It addresses the need for precise, individual channel control in high-density LED matrices. The integration of communication repeaters and bridge functions simplifies system wiring compared to discrete solutions.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Verify pinout and electrical characteristics carefully if considering alternative manufacturers for equivalent functionality.