ROHM Semiconductor LM2903EZ Automotive Ground Sense Comparator

Introduction

The ROHM Semiconductor LM2903EZ is a high-performance automotive ground sense comparator designed to operate efficiently from nearly ground level inputs. With its AEC-Q100 qualification, this component is tailored for automotive applications, ensuring reliability and performance in critical systems.

Part Description

The LM2903EZ is a high-gain comparator that supports both single and dual power supply operations. It boasts a low supply current of 0.6mA, a minimal input offset current of 5nA, and a low input bias current of 50nA. This device operates within a voltage range of 3V to 36V for single supply and ±1.5V to ±18V for dual supply configurations. The compact SOP-J8 package measures 4.9mm x 6mm x 1.65mm, making it suitable for space-constrained applications in automotive electronics.

Applications

• Engine Control Units (ECUs)
• Electric Power Steering (EPS)
• Anti-lock Braking Systems (ABS)
• General automotive electronics

Industries

• Automotive
• Transportation
• Electronics manufacturing
• Industrial automation

Usage Ideas

1. Engine Control Unit Development: Utilize the LM2903EZ to create a reliable engine control unit that monitors and adjusts engine parameters for optimal performance.
2. Electric Power Steering System: Design an EPS system that leverages the comparator's low power consumption and high sensitivity to enhance steering responsiveness and safety.
3. Anti-lock Braking System Prototype: Develop a prototype ABS that uses the LM2903EZ to ensure precise control of wheel speed and braking force, improving vehicle safety during emergency stops.

Conclusion

The ROHM Semiconductor LM2903EZ Automotive Ground Sense Comparator is an essential component for modern automotive applications, providing high gain and low power consumption. Its versatility and AEC-Q100 qualification make it a reliable choice for engineers looking to enhance the performance and safety of automotive systems.