NCV7685DQR2G

Overview

The NCV7685DQR2G is a twelve-channel linear LED driver IC designed for automotive applications, certified to AEC-Q100 standards. It operates within a supply voltage range of 5 V to 28 V and delivers a constant output current of 55 mA per channel. The device supports both linear and PWM dimming methods for precise light control. It features an I2C interface for configuration and sequencing, housed in a 24-SSOP-EP package with exposed pad for thermal management. Operating temperatures span from -40°C to +150°C.

Feature Summary

• Twelve independent constant current channels for multi-zone LED control
• Integrated I2C interface for digital programming and status monitoring
• Supports combined linear and pulse-width modulation dimming techniques
• Automotive-grade reliability with extended temperature operation capability

Applications

• Automotive interior ambient lighting systems
• Multi-zone dashboard and console illumination
• Exterior signature lighting sequences
• High-density LED matrix arrays requiring individual channel control

Procurement Notes

Verify the specific suffix DQR2G matches the required tape-and-reel quantity and moisture sensitivity level. Confirm that the SSOP-24EP package dimensions align with the target PCB footprint. Ensure the design accounts for thermal dissipation requirements given the linear topology and maximum junction temperature limits under full load conditions.

Selection Notes

Select this component when twelve individually controllable channels are required within a single package. Choose over buck-based drivers if system complexity must be minimized and input-output voltage differential allows linear regulation. Verify I2C bus compatibility with the host microcontroller and ensure adequate heat sinking for the SSOP-EP package under continuous high-current operation.

Part Context

This part belongs to the NCV7685 series of automotive LED drivers. It shares the family's core architecture but differs from variants like NCV7683 or NCV7684 by offering twelve channels instead of eight or fewer. The series targets complex automotive lighting topologies requiring centralized digital control and high channel density.

Replacement Considerations

Direct pin-compatible substitutes within the same series include NCV7685DQAR2G. Cross-series replacements such as NCV7683DQR2G require schematic modification due to differing channel counts. Always verify updated datasheets for any recent package or electrical parameter revisions before substitution.