INA194AQDBVRQ1

Product Overview

Category: Integrated Circuit (IC)

Use: The INA194AQDBVRQ1 is a high-side current sense amplifier designed for automotive applications. It accurately measures the current flowing through a shunt resistor and provides an amplified voltage output proportional to the current.

Characteristics: - High accuracy and precision - Wide input voltage range - Low offset voltage and low quiescent current - High common-mode rejection ratio (CMRR) - Overvoltage and reverse polarity protection

Package: SOT-23-6 package

Essence: The INA194AQDBVRQ1 is an essential component in automotive systems that require accurate current measurements, such as battery management systems, motor control, and power distribution units.

Packaging/Quantity: The INA194AQDBVRQ1 is available in tape and reel packaging with 3000 units per reel.

Specifications

• Supply Voltage Range: 2.7V to 26V
• Input Common-Mode Voltage Range: -0.3V to V+ + 0.3V
• Quiescent Current: 60µA (typical)
• Gain Bandwidth Product: 500kHz (typical)
• Output Voltage Swing: 0.1V to V+ - 0.1V
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The INA194AQDBVRQ1 has six pins arranged in the following configuration:

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| | | U | |___________|

Pin Configuration: 1. V+ 2. IN- 3. IN+ 4. REF 5. OUT 6. GND ```

Functional Features

• High accuracy current sensing
• Wide input voltage range for versatile applications
• Low power consumption
• Overvoltage and reverse polarity protection for robust operation
• Differential input configuration for common-mode noise rejection

Advantages and Disadvantages

Advantages: - Accurate and precise current measurements - Wide operating voltage range allows for flexibility in various applications - Low power consumption helps to minimize energy usage - Robust protection features ensure reliable operation in automotive environments - Excellent common-mode noise rejection enhances measurement accuracy

Disadvantages: - Limited output voltage swing may restrict certain applications requiring higher voltage levels - SOT-23-6 package may not be suitable for all PCB layouts or assembly processes

Working Principles

The INA194AQDBVRQ1 utilizes a high-side current sensing technique. It measures the voltage drop across a shunt resistor inserted in series with the load, converting it into a proportional amplified voltage output. The differential input configuration cancels out common-mode noise, ensuring accurate current measurements.

Detailed Application Field Plans

The INA194AQDBVRQ1 is widely used in automotive systems that require precise current measurements. Some of its application fields include:

1. Battery Management Systems: The INA194AQDBVRQ1 accurately monitors the charging and discharging currents of automotive batteries, enabling efficient battery management and prolonging battery life.

2. Motor Control: In electric vehicles and hybrid vehicles, the INA194AQDBVRQ1 provides accurate current measurements for motor control systems, allowing for precise control of motor speed and torque.

3. Power Distribution Units: The INA194AQDBVRQ1 is used in power distribution units to monitor the current flowing through different circuits, ensuring proper load balancing and preventing overloads.

Detailed and Complete Alternative Models

1. INA193AQDBVRQ1: Similar to the INA194AQDBVRQ1, but with a lower gain bandwidth product of 200kHz.
2. INA195AQDBVRQ1: Similar to the INA194AQDBVRQ1, but with a higher gain bandwidth product of 1MHz.
3. INA196AQDBVRQ1: Similar to the INA194AQDBVRQ1, but with an extended temperature range of -40°C to +150°C.

These alternative models provide options based on specific application requirements and operating conditions.

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