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Product Detailed Parameters
- Description：EMARMOUR SERIES, AUTOMOTIVE EXCE
- Series：EMARMOUR™
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：General Purpose
- Number of Elements：2
- Output Type：Open-Collector, TTL
- Voltage - Supply, Single/Dual (±)：3V ~ 36V, ±1.5V ~ 18V
- Voltage - Input Offset (Max)：5mV @ 5V
- Current - Input Bias (Max)：0.25µA @ 5V
- Current - Output (Typ)：16mA @ 5V
- Current - Quiescent (Max)：1mA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：-
- Hysteresis：-
- Operating Temperature：-40°C ~ 150°C
- Package / Case：8-SOIC (0.173", 4.40mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：8-SOP
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The LM2903EYF-CE2 is an automotive-grade ground sense comparator from ROHM Semiconductor, designed for high-gain applications in vehicle systems. It integrates two independent comparators on a single chip with a wide operating supply voltage range of 3V to 36V. The device features low power supply current and supports input operation near the GND level. It is qualified under AEC-Q100 Grade 1 standards and operates within a temperature range of -40°C to +150°C.
Feature Summary
- AEC-Q100 Grade 1 qualified for automotive reliability
- Ground sense input capability operating near GND level
- Wide operating supply voltage range from 3V to 36V
- Low power supply current consumption
Applications
- Engine control units
- Electric power steering systems
- Anti-lock braking systems
Procurement Notes
Verify the specific suffix CE2 against official ROHM documentation to confirm package type and tape/reel specifications. Confirm functional safety classification as FS supportive if required for system design. Ensure compatibility with existing PCB footprints for SOP-8 packages before procurement.
Selection Notes
Select this component for designs requiring robust ground-referenced signal detection in noisy automotive environments. The wide common-mode input voltage range extending to VCC-1.5V allows flexibility in sensor interfacing. Consider the extended temperature range up to 150°C for under-hood applications where thermal management is critical.
Part Context
This part belongs to the EMARMOUR series, characterized by excellent EMI characteristics suitable for automotive use. It serves as a specialized ground sense comparator variant within the broader LM2903 family, offering enhanced performance over standard general-purpose comparators for demanding vehicle electronics.
Replacement Considerations
Check for direct pin-compatible alternatives within the LM2903 family such as LM2903EYFJ-CE2 or LM2903EZFVT-C. Verify that substitute parts maintain the same AEC-Q100 qualification and ground sense input capabilities to ensure system integrity.
