LM2903AVQPWRG4Q1

Product Overview

Category: Integrated Circuit (IC)

Use: The LM2903AVQPWRG4Q1 is a dual differential comparator designed for automotive applications. It is specifically built to operate in harsh environments and is suitable for use in various automotive systems.

Characteristics: - Dual differential voltage comparator - Wide supply voltage range: 2 V to 36 V - Low input bias current: 25 nA - Low input offset current: 5 nA - Low input offset voltage: 2 mV - Low output saturation voltage: 250 mV - High output sink current: 16 mA - Operating temperature range: -40°C to +125°C - Automotive grade, AEC-Q100 qualified

Package: VQFN-8 (Very Thin Quad Flat No-Lead)

Essence: The LM2903AVQPWRG4Q1 is an essential component in automotive electronic systems that require precise voltage comparisons. It provides accurate and reliable performance even in challenging operating conditions.

Packaging/Quantity: The LM2903AVQPWRG4Q1 is typically available in tape and reel packaging with a quantity of 3000 units per reel.

Specifications

• Supply Voltage Range: 2 V to 36 V
• Input Offset Voltage: 2 mV
• Input Bias Current: 25 nA
• Output Current: 16 mA
• Response Time: 1.3 µs
• Operating Temperature Range: -40°C to +125°C
• Package Type: VQFN-8
• Manufacturer: Texas Instruments

Detailed Pin Configuration

The LM2903AVQPWRG4Q1 has a VQFN-8 package with the following pin configuration:

___________ | | 1 | | 8 |___________|

Pin 1: Inverting Input 1 (-IN1)

Pin 2: Non-Inverting Input 1 (+IN1)

Pin 3: VCC (Positive Supply Voltage)

Pin 4: Output 1 (OUT1)

Pin 5: GND (Ground)

Pin 6: Output 2 (OUT2)

Pin 7: Non-Inverting Input 2 (+IN2)

Pin 8: Inverting Input 2 (-IN2)

Functional Features

• Dual differential voltage comparator with two independent comparators in a single package.
• Wide supply voltage range allows for versatile use in various automotive systems.
• Low input bias current and offset current ensure accurate voltage comparisons.
• High output sink current enables direct drive of loads.
• Automotive grade qualification ensures reliability in harsh environments.

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows for flexible use in different applications. - Low input bias and offset currents provide precise voltage comparisons. - High output sink current enables direct drive of loads. - Automotive grade qualification ensures reliability in automotive systems.

Disadvantages: - Limited number of comparators in a single package. - Not suitable for applications requiring a large number of comparators.

Working Principles

The LM2903AVQPWRG4Q1 is based on the principle of voltage comparison. It compares the voltages at its two inputs and produces an output based on the result of the comparison. When the voltage at the non-inverting input is higher than the voltage at the inverting input, the output goes high. Conversely, when the voltage at the inverting input is higher, the output goes low.

Detailed Application Field Plans

The LM2903AVQPWRG4Q1 is widely used in automotive electronic systems, including but not limited to:

1. Battery Management Systems: It can be used to monitor battery voltage and trigger appropriate actions based on the voltage levels.
2. Motor Control: It can be employed in motor control circuits to compare reference voltages and feedback signals for precise control.
3. Lighting Systems: It can be utilized in lighting systems to compare ambient light levels and adjust the brightness accordingly.
4. Safety Systems: It can be integrated into safety systems to compare sensor inputs and activate alarms or safety mechanisms.

Detailed and Complete Alternative Models

• LM393: Dual differential comparator with similar characteristics and package options.
• LM339: Quad differential comparator with wider supply voltage range and additional comparators.
• LM311: Single differential comparator with higher output current capability.

These alternative models offer different features and specifications, allowing users to choose the most suitable option for their specific application requirements.

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