INA231BIYFDR

Product Overview

• Category: Integrated Circuit
• Use: Current and Power Monitor
• Characteristics: High accuracy, low power consumption
• Package: DFN (Dual Flat No-Lead)
• Essence: Monitors current and voltage in electronic systems
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +125°C
• Current Measurement Range: ±3.2A
• Voltage Measurement Range: 0V to 26V
• Accuracy: ±0.1% (typical)
• Interface: I2C/SMBus

Detailed Pin Configuration

The INA231BIYFDR has the following pin configuration:

1. V+ (Positive Supply Voltage)
2. V- (Negative Supply Voltage)
3. SDA (Serial Data Input/Output)
4. SCL (Serial Clock Input)
5. ALERT (Alert Output)
6. A0 (Address Selection Bit 0)
7. A1 (Address Selection Bit 1)
8. GND (Ground)

Functional Features

• Measures both current and voltage simultaneously
• Provides accurate digital readings of current and voltage values
• Supports programmable alert thresholds for overcurrent and undervoltage conditions
• Offers high-speed I2C interface for easy integration with microcontrollers
• Includes on-chip temperature sensor for monitoring device temperature

Advantages and Disadvantages

Advantages: - High accuracy ensures precise current and voltage measurements - Low power consumption minimizes energy usage - Compact DFN package allows for space-efficient designs - Wide operating temperature range enables usage in various environments

Disadvantages: - Limited current measurement range may not be suitable for high-power applications - I2C interface may require additional circuitry for compatibility with certain systems

Working Principles

The INA231BIYFDR operates based on the principle of shunt voltage measurement. It utilizes a precision shunt resistor to sense the voltage drop across it, which is proportional to the current flowing through the circuit. By measuring this voltage drop and the applied voltage, the device calculates the current passing through the system. Additionally, it measures the input voltage to provide accurate power calculations.

Detailed Application Field Plans

The INA231BIYFDR finds applications in various fields, including:

1. Power management systems
2. Battery charging and monitoring
3. Solar energy systems
4. Motor control and protection
5. Portable electronic devices
6. Industrial automation

Detailed and Complete Alternative Models

1. INA219BIDR: Similar functionality with lower current measurement range (±1.6A)
2. INA240AIDGKT: Higher current measurement range (±20A) with integrated isolation
3. INA3221EVM: Evaluation module featuring three INA3221 devices for multi-channel monitoring

These alternative models offer different specifications and features to cater to specific application requirements.

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