NCV78825DQ0R2G

Overview

The NCV78825DQ0R2G is a single-chip synchronous buck dual LED driver designed for automotive headlight applications. It provides independent drive solutions for two LED strings, each supporting up to 60V and delivering a DC output current capability of 3A. The device integrates high-side switches and precision current sensing, eliminating the need for external sense resistors. Key electrical parameters include a VBOOST supply range of -0.3V to 68V and a VDRIVE range of -0.3V to 12V. It utilizes an SPI interface for programmability and features a SSOP36-EP package with a junction-to-exposed pad thermal resistance of 3.5°C/W.

Feature Summary

• Integrates high-side switches and precision current sensing to enable resistor-less buck current regulation.
• Supports independent customization of output current and voltage for two separate LED channels.
• Utilizes an SPI interface to allow flexible hardware configuration across multiple application platforms.

Applications

• Automotive high beam headlights
• Automotive low beam headlights
• Daytime running lights (DRL)
• Turn signal indicators

Procurement Notes

Verify that the specific ordering suffix DQ0R2G matches the required package type and tape-and-reel specifications defined in the official datasheet. Confirm that the component meets the necessary automotive qualification standards required for the target headlight system integration before finalizing procurement.

Selection Notes

Select this component when designing systems requiring independent control of two high-voltage LED strings without external sense resistors. Ensure the design accommodates the 68V maximum VBOOST input and utilizes the SPI interface for dynamic current adjustment. Verify that the thermal performance of the SSOP36-EP package aligns with the system's heat dissipation requirements.

Part Context

This part belongs to onsemi's family of synchronous buck LED drivers tailored for automotive lighting. It complements other devices like the NCV787x3 series by providing a dedicated solution for dual-channel high-current applications. The integration of power stages and control logic simplifies the bill of materials compared to discrete implementations.

Replacement Considerations

For expanded channel requirements exceeding two outputs, consider combining multiple NCV78825 units or integrating them with NCV787x3 devices as documented in official application notes. No direct pin-compatible substitutes are explicitly confirmed in the provided source material.