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LM2903VQPWRG4Q1

TILM2903VQPWRG4Q1

Texas Instruments
Comparator Standard (General Purpose) Open-Collector, Rail-to-Rail 8-TSSOP
Active4,378 in stock

Overview

The LM2903VQPWRG4Q1 is a dual-channel, general-purpose voltage comparator designed for automotive and industrial applications. It features an open-collector output stage that allows for level shifting and wire-OR logic configurations, operating over a wide supply range from 2V up to 36V. This specific variant is functional safety-capable, making it suitable for systems requiring high reliability and diagnostic coverage.

Why Choose This Part

This device offers excellent flexibility with a wide operating temperature range of -40 to 125 degrees Celsius and a high maximum input voltage of 36V. Its functional safety-capable designation provides the necessary documentation for risk-reduction designs in regulated environments. The 8-TSSOP package provides a small footprint while maintaining compatibility with standard surface-mount assembly processes.

Applications

Window Comparators
Utilizing both channels to monitor if a voltage signal remains within a specific upper and lower threshold.
Level Shifting
The open-collector output allows interfacing between different logic levels (e.g., 3.3V logic to 12V loads) via an external pull-up resistor.
Over-Voltage Detection
Triggering safety shutdowns or alerts when an input exceeds a reference voltage in power management systems.
Oscillators
Creating simple square wave generators or RC-based timing circuits in low-frequency applications.

Key Specifications

Type Standard (General Purpose)
Output Type Open-Collector, Rail-to-Rail
Mounting Type Surface Mount
Package / Case 8-TSSOP (0.173", 4.40mm Width)
Number of Elements 2
Operating Temperature -40degC ~ 125degC
Current - Output (Typ) 20mA
Supplier Device Package 8-TSSOP
Current - Quiescent (Max) 2.5mA
Current - Input Bias (Max) 0.25uA @ 5V
Voltage - Input Offset (Max) 7mV @ 5V
Voltage - Supply, Single/Dual (+/-) 2V ~ 36V, +/-1V ~ 18V

Getting Started

To evaluate this part, use a standard TSSOP-8 breakout board for breadboarding or incorporate it into a prototype using a 0.1uF bypass capacitor near the VCC pin. When designing the circuit, ensure a pull-up resistor is selected for the open-collector output based on your required logic high voltage and sink current needs, which typically go up to 20mA.