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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 LM2903BHQPWRQ1 is an automotive-grade dual differential voltage comparator from the LM2903B-Q1 family, manufactured by Texas Instruments. It operates on a single or dual supply ranging from 2V to 36V and features open-drain outputs compatible with TTL, MOS, and CMOS logic. The device is AEC-Q100 Grade 1 qualified for ambient temperatures between -40°C and +125°C. Key electrical characteristics include a typical quiescent current of 600µA, a maximum input offset voltage of ±4mV over temperature, and a typical response time of 1µs.
Feature Summary
- Enhanced electrostatic discharge protection rated at 2kV HBM and 1kV CDM
- Low input bias current of 3.5nA typical and low input offset voltage of ±0.37mV typical
- Open-drain output configuration allows flexible logic level interfacing
- Wide common-mode input voltage range includes ground potential
Applications
- Hybrid electric vehicle (HEV) and electric vehicle (EV) power train systems
- Automotive infotainment and instrument cluster circuits
- Body control module applications
- Industrial equipment monitoring
- Consumer appliance control logic
Procurement Notes
Verify that the specific ordering suffix matches the required package type and temperature testing options. Confirm AEC-Q100 Grade 1 qualification status aligns with system requirements. Ensure compatibility with existing PCB footprints for the TSSOP-8 package. Review functional safety documentation if deploying in safety-critical architectures.
Selection Notes
Select this component when drop-in replacement for standard comparators is needed alongside improved ESD robustness. The LM2903B-Q1 series offers lower propagation delay and reduced supply current compared to legacy LM2903-Q1 variants. Consider the open-drain output requirement for pull-up resistor integration in the design.
Part Context
This part belongs to the LM2903-Q1 family, which represents the next-generation evolution of industry-standard dual comparators. The 'B' designation indicates enhanced performance metrics including higher supply voltage tolerance up to 36V and superior ESD handling. It serves as a direct pin-compatible upgrade for cost-sensitive automotive designs requiring higher reliability.
Replacement Considerations
LM2903BQDRQ1
FAQ
What is the maximum differential input voltage rating?
The absolute maximum differential input voltage is ±38V.
Does the device support shutdown functionality?
No, the LM2903BHQPWRQ1 does not feature a shutdown mode.
