LM2903PWRG4

Overview

The LM2903PWRG4 is a dual differential voltage comparator from Texas Instruments, designed for single-supply operation across a wide voltage range. It features an open-collector output configuration and includes ground in its common-mode input voltage range. The device operates within a supply voltage span of 2 V to 30 V, with a typical response time of 1.3 µs. It draws a maximum operating supply current of 2.5 mA and supports a maximum output current of 6 mA per channel. The unit is housed in a TSSOP-8 package and functions reliably within a temperature range of -40°C to +125°C.

Feature Summary

• Dual differential input architecture optimized for single-supply applications
• Open-collector outputs allow for wired-AND logic and parallel operation
• Wide supply voltage capability supporting diverse power environments
• Extended industrial temperature rating for robust performance

Applications

• General-purpose analog signal comparison
• Over-voltage and under-voltage detection circuits
• Window comparator configurations
• Level shifting interfaces between different logic families

Procurement Notes

Verify the specific suffix G4 indicates lead-free compliance and RoHS status as per manufacturer documentation. Confirm the TSSOP-8 package dimensions match your PCB footprint requirements. Ensure the open-collector output type aligns with your pull-up resistor design. Check that the 30 V maximum supply voltage meets your system's peak operational limits. Validate the -40°C to +125°C operating range against your environmental conditions.

Selection Notes

Select this component when a dual comparator with open-collector outputs is required for single-supply systems. It is suitable for applications needing moderate speed with a 1.3 µs response time. Consider the 2.5 mA supply current for low-power constraints. The wide input common-mode range including ground simplifies interface design. Ensure the TSSOP-8 package fits your assembly capabilities.

Part Context

This part belongs to the LMx93/LM2903 series of dual voltage comparators. These devices are distinct from operational amplifiers, offering faster switching speeds and tolerance for high differential input voltages. The series is widely used for non-linear applications where rapid state transitions are necessary rather than linear amplification.

Replacement Considerations

LM2903PWR is a direct pin-compatible alternative within the same series. LM2903M/NOPB offers similar functionality in an SOIC-8 package. Verify electrical parameters such as response time and supply current when substituting.