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Product Detailed Parameters
- Description：IC COMPARATOR 2 DIFF 8SOIC
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：General Purpose
- Number of Elements：2
- Output Type：Open-Collector, Rail-to-Rail
- Voltage - Supply, Single/Dual (±)：2V ~ 36V
- Voltage - Input Offset (Max)：2.5mV @ 5V
- Current - Input Bias (Max)：0.025µA @ 5V
- Current - Output (Typ)：21mA @ 5V
- Current - Quiescent (Max)：600µA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：300ns (Typ)
- Hysteresis：-
- Operating Temperature：-40°C ~ 125°C
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：8-SOIC
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The LM2903BRQDRQ1 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 two independent comparators with open-drain outputs in an SOIC-8 package. Key electrical specifications include a typical quiescent current of 200µA per comparator, a maximum input offset voltage of ±4mV over temperature, and a typical propagation delay of 1µs. It meets AEC-Q100 Grade 1 standards.
Feature Summary
- Qualified for automotive applications with AEC-Q100 Grade 1 certification
- Enhanced electrostatic discharge protection with improved 2kV HBM rating
- Low supply current that remains independent of the supply voltage
- Differential input voltage range matches the maximum-rated supply voltage
Applications
- Hybrid electric vehicle (HEV) and electric vehicle (EV) power trains
- Automotive infotainment systems and instrument clusters
- Body control modules
Procurement Notes
Verify the specific suffix 'R' indicates reel packaging and 'D' denotes the SOIC-8 package when ordering. Confirm the 'Q1' designation ensures compliance with AEC-Q100 Grade 1 requirements for your target environment. Cross-reference the full part number against the manufacturer's latest orderable addendum to ensure availability of the correct thermal and mechanical specifications.
Selection Notes
Select this component for designs requiring high voltage tolerance up to 36V and low power consumption. The LM2903B-Q1 offers superior offset voltage and bias current performance compared to standard LM2903-Q1 variants. Ensure the application utilizes the open-drain output correctly with appropriate pull-up resistors to interface with downstream logic circuits.
Part Context
This device belongs to the LM2903-Q1 family of dual comparators designed for cost-sensitive automotive applications. The 'B' variant represents a next-generation improvement over the standard LM2903-Q1, providing lower offset voltage, reduced supply current, and faster response times while maintaining drop-in replacement compatibility with existing designs.
Replacement Considerations
LM2903QDRQ1
FAQ
What is the maximum differential input voltage the LM2903BRQDRQ1 can withstand?
The differential input voltage range is equal to the maximum-rated supply voltage, which is ±36V.
Does the LM2903BRQDRQ1 support operation from ground?
Yes, the common-mode input voltage range includes ground, allowing it to function effectively with signals referenced to zero volts.
