LM2903BWDSGRQ1

Overview

The LM2903BWDSGRQ1 is an automotive-grade dual differential comparator from the LM2903B-Q1 family, manufactured by Texas Instruments. It operates on a single or dual supply voltage ranging from 2V to 36V and functions within an ambient temperature range of -40°C to +125°C. The device features low quiescent current (typically 200µA per comparator), low input bias current (3.5nA typical), and low input offset voltage (±0.37mV typical). It provides improved ESD protection with 2kV HBM rating and includes open-drain outputs compatible with TTL, MOS, and CMOS logic families.

Feature Summary

• Qualified for automotive applications under AEC-Q100 standards
• Features enhanced electrostatic discharge protection with 2kV Human Body Model rating
• Offers low power consumption with supply current independent of voltage
• Supports wide common-mode input voltage range including ground

Applications

• Hybrid electric vehicle and electric vehicle power train systems
• Automotive infotainment and instrument cluster circuits
• Body control module signal processing
• Industrial control systems
• Appliance logic interfaces

Procurement Notes

Verify that the specific ordering suffix matches the required package type and temperature grade. Confirm AEC-Q100 Grade 1 qualification aligns with system thermal requirements. Ensure design accounts for the open-drain output configuration requiring external pull-up resistors. Validate that the 36V maximum supply voltage meets circuit constraints.

Selection Notes

Select this component when high voltage tolerance and automotive reliability are required. The LM2903B-Q1 offers superior offset voltage and ESD performance compared to standard LM2903-Q1 variants. Consider the WSON package dimensions if space-constrained PCB layouts are necessary. Verify compatibility with existing logic levels due to the open-drain output structure.

Part Context

This part belongs to the LM2903-Q1 family of dual comparators designed for cost-sensitive automotive applications. It serves as a next-generation upgrade to the industry-standard LM2903-Q1, providing drop-in replacement convenience with improved electrical characteristics such as lower propagation delay and higher supply voltage capability.

Replacement Considerations

LM2903QDRQ1