INA240A4QPWRQ1

Product Overview

Category: Integrated Circuit (IC)

Use: The INA240A4QPWRQ1 is a high-side current sense amplifier designed for automotive applications. It accurately measures current flowing through a shunt resistor and provides an amplified voltage output proportional to the measured current.

Characteristics: - High accuracy and precision - Wide input voltage range - Low offset voltage and low offset drift - High common-mode rejection ratio - Low quiescent current

Package: The INA240A4QPWRQ1 comes in a small 14-pin TSSOP package, which is suitable for surface mount applications.

Essence: The essence of the INA240A4QPWRQ1 is its ability to accurately measure current in automotive systems, enabling precise monitoring and control of power consumption.

Packaging/Quantity: The INA240A4QPWRQ1 is typically sold in reels of 2500 units.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Input Common-Mode Voltage Range: -0.3V to V+ + 0.3V
• Output Voltage Swing: 0V to V+
• Quiescent Current: 60µA (typical)
• Gain Bandwidth Product: 500kHz (typical)
• Operating Temperature Range: -40°C to 125°C

Pin Configuration

The INA240A4QPWRQ1 has the following pin configuration:

```

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| | | U1 | |___________|

Pin 1: V+ Pin 2: IN- Pin 3: IN+ Pin 4: REF- Pin 5: REF+ Pin 6: OUT Pin 7: GND Pin 8: GND Pin 9: NC Pin 10: NC Pin 11: NC Pin 12: NC Pin 13: NC Pin 14: V- ```

Functional Features

• High accuracy current sensing
• Wide input voltage range for compatibility with various automotive systems
• Low offset voltage and drift for precise measurements
• High common-mode rejection ratio to minimize noise interference
• Low quiescent current for power efficiency

Advantages and Disadvantages

Advantages: - Accurate and precise current measurement - Wide input voltage range allows for versatile applications - Low offset voltage and drift ensure reliable measurements - High common-mode rejection ratio reduces noise interference - Low quiescent current minimizes power consumption

Disadvantages: - Limited to automotive applications - Requires external shunt resistor for current sensing

Working Principles

The INA240A4QPWRQ1 operates by measuring the voltage drop across an external shunt resistor. The amplified voltage output is proportional to the current flowing through the shunt resistor. This amplified voltage can be easily measured and used for monitoring or control purposes in automotive systems.

Detailed Application Field Plans

The INA240A4QPWRQ1 is primarily designed for automotive applications, including but not limited to:

1. Battery management systems
2. Motor control systems
3. Power distribution systems
4. Electric vehicle charging systems
5. Overcurrent protection circuits

Detailed and Complete Alternative Models

1. INA219AIDCNR - Similar high-side current sense amplifier with I2C interface.
2. MAX4080SASA+ - High-side current sense amplifier with adjustable gain.
3. LT6106CMS8#PBF - Precision high-side current sense amplifier with wide input voltage range.

These alternative models offer similar functionality and can be considered as alternatives to the INA240A4QPWRQ1 depending on specific requirements and system compatibility.

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