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Product Detailed Parameters
- Description：IC COMPARATOR 2 DIFF 8TSSOP
- 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-TSSOP (0.173", 4.40mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：8-TSSOP
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The LM2903BRQPWRQ1 is an automotive-grade dual comparator from the LM2903B-Q1 family, manufactured by Texas Instruments. It operates on a single or dual supply voltage ranging from 2V to 36V. The device features low quiescent current of 400µA typical at 5V and 600µA typical at 36V. Input characteristics include a typical input bias current of 3.5nA and input offset voltage of ±0.37mV. It provides open-drain outputs compatible with TTL, MOS, and CMOS logic levels. Qualified under AEC-Q100 Grade 1, it supports ambient operating temperatures from -40°C to +125°C.
Feature Summary
- AEC-Q100 qualified for Grade 1 temperature range (-40°C to +125°C) suitable for automotive environments
- Low supply current independent of supply voltage, typically 200µA per comparator
- Improved electrostatic discharge (ESD) protection with 2kV Human Body Model rating
- Open-drain output configuration allows flexible logic level interfacing
Applications
- Hybrid electric vehicle (HEV) and electric vehicle (EV) power train systems
- Automotive infotainment and instrument cluster circuits
- Body control module applications
Procurement Notes
Verify the specific package variant (PW indicates TSSOP-8) against the orderable addendum in the datasheet. Confirm that the 'R' suffix corresponds to reel packaging requirements. Ensure the component meets functional safety documentation needs if applicable to the system design. Cross-reference the exact part number with the manufacturer's latest production data to confirm availability status.
Selection Notes
Select this component when high voltage tolerance up to 36V is required alongside low power consumption. The improved ESD performance makes it suitable for robust industrial and automotive interfaces. Consider the open-drain output requirement for pull-up resistor implementation. Verify thermal dissipation capabilities within the TSSOP-8 package for the specific application load.
Part Context
This device belongs to the LM2903-Q1 family, representing the next-generation LM2903B-Q1 version. It offers drop-in replacement convenience over standard comparators while providing enhanced specifications such as lower offset voltage and higher supply voltage capability. The family includes variants like LM2903-Q1 and LM2903E-Q1 with different temperature grades and performance metrics.
Replacement Considerations
LM2903-Q1 serves as a direct functional predecessor within the same family.
