ALED7707

Overview

The ALED7707 is an automotive-grade LED driver IC featuring a monolithic boost converter and six controlled current generators. Designed for LCD panel backlighting, it supports input voltages from 4.5 V to 36 V and delivers up to 85 mA per channel with a maximum output voltage of 36 V. The device utilizes constant frequency peak current-mode control with an adjustable switching frequency range of 250 kHz to 1 MHz. It includes an internal power MOSFET, programmable soft-start, and pulse skip power saving mode. The component is qualified under AEC-Q100 standards and operates within a junction temperature range of -40°C to +150°C.

Feature Summary

• Six-channel current regulation with ±3% matching accuracy between rows
• Integrated monolithic boost converter with internal power MOSFET
• Comprehensive fault management including open and short-circuit detection
• AEC-Q100 automotive qualification with thermal shutdown protection

Applications

• LCD panel backlighting systems
• Automotive interior lighting applications
• Infotainment TFT display backlighting

Procurement Notes

Verify the specific ordering suffix (e.g., TR for reel) against the manufacturer's official datasheet to ensure correct packaging configuration. Confirm that the selected variant meets the required AEC-Q100 reliability standards for your target automotive application. Cross-reference the package marking code with STMicroelectronics documentation to validate authenticity and production batch details before procurement.

Selection Notes

Select this component when designing multi-string LED arrays requiring precise current matching and high efficiency. The integrated boost topology simplifies design by eliminating external inductors and diodes typically needed for step-up conversion. Ensure the application input voltage falls within the specified 4.5 V to 36 V range. Consider the 24-VQFN package for thermal performance and space constraints in compact automotive enclosures.

Part Context

The ALED7707 belongs to STMicroelectronics' dedicated automotive LED lighting driver family. It is specifically engineered to replace discrete solutions in complex backlighting architectures. The device integrates both the power stage and control logic, reducing board space and component count. It serves as a core solution for modern vehicle infotainment displays and ambient lighting systems requiring high reliability.

Replacement Considerations

Consult STMicroelectronics official documentation for direct pin-to-pin compatible alternatives within the same product family. Verify electrical parameter equivalence and package compatibility before substitution.