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Product Detailed Parameters
- Description：PROTOTYPE
- Series：-
- Mfr：Texas Instruments
- Package：Bulk
- Type：General Purpose
- Number of Elements：2
- Output Type：Open-Collector, Rail-to-Rail
- Voltage - Supply, Single/Dual (±)：2V ~ 32V, ±1V ~ 16V
- Voltage - Input Offset (Max)：7mV @ 5V
- Current - Input Bias (Max)：0.25µA @ 5V
- Current - Output (Typ)：6mA
- Current - Quiescent (Max)：1mA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：-
- Hysteresis：-
- Operating Temperature：-40°C ~ 125°C (TA)
- Package / Case：8-TSSOP (0.173", 4.40mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：8-TSSOP
- Grade：-
- Qualification：-
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Overview
The LM2903VQPWRCT is an automotive-grade dual differential voltage comparator from the LM2903-Q1 family, manufactured by Texas Instruments. It operates on a single supply ranging from 2V to 32V or dual supplies within the same differential limit. The device features open-drain outputs compatible with TTL, MOS, and CMOS logic families. It is qualified under AEC-Q100 standards for Grade 1 temperature range (-40°C to +125°C) and includes HBM ESD classification level H1C and CDM level C4B. The package is TSSOP-8.
Feature Summary
- Qualified for automotive applications with AEC-Q100 Grade 1 certification
- Open-drain output configuration allows flexible logic interfacing
- Wide common-mode input voltage range including ground potential
- Differential input voltage capability matches maximum rated supply voltage
Applications
- Automotive HEV/EV power train systems
- Infotainment and instrument cluster circuits
- Body control module signal processing
Procurement Notes
Verify the specific suffix 'CT' against the manufacturer's official orderable addendum to confirm tape-and-reel packaging specifications. Ensure the component meets the required AEC-Q100 Grade 1 temperature rating for your target application environment. Cross-reference the datasheet revision history for any functional safety documentation updates relevant to system design compliance.
Selection Notes
Select this component when designing circuits requiring robust voltage comparison in automotive environments with supply voltages up to 32V. The open-drain output necessitates an external pull-up resistor to define the high logic state. Consider the thermal resistance characteristics of the TSSOP-8 package if operating near the upper limits of the specified ambient temperature range.
Part Context
This part belongs to the LM2903-Q1 family of dual comparators designed for cost-sensitive automotive applications. It serves as a standard industry solution for general-purpose voltage monitoring. The 'V' suffix indicates a supply voltage capability extending to 32V, distinguishing it from standard variants limited to 30V. It provides a drop-in replacement option for legacy designs requiring enhanced voltage tolerance.
Replacement Considerations
LM2903AVQPWRCT
FAQ
What is the maximum differential input voltage allowed?
The differential input voltage range is equal to the maximum-rated supply voltage, which is ±36 V absolute maximum, though recommended operation is within the supply rails.
Can the inputs go negative relative to ground?
No, the input voltage range should not go negative by more than 0.3V relative to the negative supply rail (GND).
