INA220BIDGSR

Product Overview

Category: Integrated Circuit (IC)

Use: Current/Power Monitor

Characteristics: - High accuracy current and power monitoring - Wide common-mode voltage range - Low offset voltage and drift - Programmable calibration - I2C interface for communication

Package: 8-pin VSSOP

Essence: The INA220BIDGSR is a high-precision, bi-directional current/power monitor IC. It provides accurate measurements of both current and power consumption in various applications.

Packaging/Quantity: The INA220BIDGSR is available in a small 8-pin VSSOP package. It is typically sold in reels of 2500 units.

Specifications

• Supply Voltage: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +125°C
• Current Measurement Range: ±1.2A
• Voltage Measurement Range: 0V to 26V
• Accuracy:
  • Current: ±0.1%
  • Power: ±0.1%
• Resolution: 0.8mA (current), 10mW (power)
• Communication Interface: I2C

Pin Configuration

The INA220BIDGSR has the following pin configuration:

| Pin Name | Description | |----------|-------------| | VIN+ | Positive supply voltage input | | VIN- | Negative supply voltage input | | VOUT | Output voltage proportional to current | | SDA | I2C data line | | SCL | I2C clock line | | ALERT | Alert output pin | | GND | Ground | | ADDR | I2C address selection |

Functional Features

• Bi-directional current sensing
• High accuracy measurements
• Programmable calibration
• Alert function for overcurrent/undervoltage detection
• I2C interface for easy communication with microcontrollers

Advantages and Disadvantages

Advantages: - High accuracy current and power monitoring - Wide common-mode voltage range - Low offset voltage and drift - Programmable calibration for improved accuracy - Compact package size

Disadvantages: - Limited current measurement range (±1.2A) - Requires external components for proper operation

Working Principles

The INA220BIDGSR utilizes a shunt resistor to measure the voltage drop across it, which is proportional to the current flowing through it. This voltage is amplified and converted into a digital value using an internal ADC. The IC also measures the supply voltage to calculate the power consumption.

Application Field Plans

The INA220BIDGSR can be used in various applications that require accurate current and power monitoring. Some potential application fields include:

1. Battery management systems
2. Power supplies and converters
3. Motor control systems
4. Solar energy systems
5. Industrial automation

Alternative Models

Here are some alternative models that provide similar functionality to the INA220BIDGSR:

1. INA219BIDCNT - Similar specifications and features, but with a different package (6-pin SOT23)
2. MAX471ESA+ - Current sense amplifier with similar accuracy and voltage range
3. ACS712ELCTR-05B-T - Hall effect-based current sensor with a wider current measurement range

These alternative models can be considered based on specific requirements and availability.

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