INA226AQDGSRQ1

Product Overview

Category: Integrated Circuit (IC)

Use: The INA226AQDGSRQ1 is a high-side current shunt and power monitor IC. It is designed to accurately measure current, voltage, and power in various applications.

Characteristics: - High accuracy - Low offset voltage - Wide input voltage range - Programmable alert thresholds - I2C interface for communication

Package: The INA226AQDGSRQ1 comes in a small 10-pin VSSOP package, which is suitable for space-constrained applications.

Essence: This IC provides precise measurements of current and voltage, making it ideal for monitoring power consumption and managing energy usage in electronic systems.

Packaging/Quantity: The INA226AQDGSRQ1 is typically sold in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Current Measurement Range: ±400mV
• Voltage Measurement Range: 0V to 36V
• Power Calculation Accuracy: ±0.5%
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The INA226AQDGSRQ1 has the following pin configuration:

1. V+ (Positive Supply Voltage)
2. V- (Negative Supply Voltage/Ground)
3. SDA (I2C Serial Data)
4. SCL (I2C Serial Clock)
5. ALERT (Alert Output)
6. A0 (Address Select Bit 0)
7. A1 (Address Select Bit 1)
8. NC (No Connection)
9. OUT (Voltage Output)
10. REF (Reference Voltage Input)

Functional Features

• High-side current sensing
• Accurate voltage and current measurements
• Programmable alert thresholds for overcurrent/undervoltage detection
• I2C interface for easy communication with microcontrollers
• Low offset voltage for improved accuracy

Advantages and Disadvantages

Advantages: - High accuracy measurements - Wide input voltage range - Programmable alert thresholds for flexible monitoring - Small package size for space-constrained applications - Easy integration with microcontrollers through I2C interface

Disadvantages: - Limited current measurement range (±400mV) - Requires external components for power supply and voltage reference

Working Principles

The INA226AQDGSRQ1 operates by measuring the voltage across a shunt resistor connected in series with the load. By using Ohm's law, the IC calculates the current flowing through the load. It also measures the voltage across the load to calculate the power consumption. The measured values are then communicated to a microcontroller via the I2C interface.

Detailed Application Field Plans

The INA226AQDGSRQ1 can be used in various applications, including:

1. Battery Management Systems: Monitor battery charging/discharging currents and voltages to optimize battery life and prevent overcharging or deep discharging.
2. Power Supplies: Measure input/output currents and voltages to monitor power consumption and ensure efficient operation.
3. Motor Control: Monitor motor currents to detect faults, control speed, and protect against overload conditions.
4. Solar Energy Systems: Measure current and voltage in solar panels to optimize power generation and monitor system performance.
5. Industrial Automation: Monitor current and voltage in industrial equipment to detect faults, optimize energy usage, and improve overall efficiency.

Detailed and Complete Alternative Models

1. INA219: Similar to the INA226AQDGSRQ1, but with a higher current measurement range of ±3.2A.
2. INA3221: A three-channel current/voltage monitor IC, suitable for multi-channel applications.
3. MAX471: Another high-side current monitor IC with a wide input voltage range and I2C interface.

These alternative models offer similar functionality to the INA226AQDGSRQ1 but may have different specifications or package options.

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