LTC2946HDE-1#PBF

Product Overview

Category

The LTC2946HDE-1#PBF belongs to the category of integrated circuits (ICs).

Use

This product is commonly used for power and energy monitoring applications.

Characteristics

• The LTC2946HDE-1#PBF is a high-precision power and energy monitor.
• It offers accurate measurements of current, voltage, power, charge, and energy.
• This IC operates over a wide voltage range, making it suitable for various applications.
• It provides a flexible I2C interface for easy integration with microcontrollers.
• The LTC2946HDE-1#PBF has low power consumption, making it ideal for battery-powered systems.

Package

The LTC2946HDE-1#PBF comes in a compact 12-pin DFN package.

Essence

The essence of this product lies in its ability to accurately monitor power and energy consumption in a wide range of applications.

Packaging/Quantity

The LTC2946HDE-1#PBF is typically packaged in reels and available in quantities suitable for both small-scale and large-scale production.

Specifications

• Input Voltage Range: 2.7V to 100V
• Current Measurement Range: ±30A
• Voltage Measurement Range: 0V to 100V
• Power Measurement Range: ±3kW
• Energy Measurement Range: ±4000J
• Resolution: 16 bits
• I2C Interface: Up to 400kHz
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

1. VIN+ (Positive Supply Voltage)
2. VIN- (Negative Supply Voltage)
3. SDA (I2C Serial Data)
4. SCL (I2C Serial Clock)
5. ALERT (Interrupt Output)
6. GND (Ground)
7. VCC (Supply Voltage)
8. VREF (Reference Voltage)
9. SENSE+ (Positive Current Sense Input)
10. SENSE- (Negative Current Sense Input)
11. VOUT (Voltage Output)
12. NC (Not Connected)

Functional Features

• Accurate measurement of current, voltage, power, charge, and energy
• Wide input voltage range allows for versatile applications
• Low power consumption for efficient battery-powered systems
• Flexible I2C interface enables easy integration with microcontrollers
• Interrupt output for timely notifications based on user-defined thresholds

Advantages and Disadvantages

Advantages

• High precision measurements
• Wide operating voltage range
• Low power consumption
• Compact package size
• Easy integration with microcontrollers

Disadvantages

• Limited current measurement range
• Requires external components for certain applications
• Relatively high cost compared to some alternatives

Working Principles

The LTC2946HDE-1#PBF operates by measuring the voltage across a shunt resistor in series with the load. By accurately measuring this voltage drop, it can calculate the current flowing through the load. The IC also measures the supply voltage to calculate the power consumed. These measurements are then used to calculate the charge and energy consumed over time.

Detailed Application Field Plans

The LTC2946HDE-1#PBF finds applications in various fields, including:

1. Battery-powered devices: It can monitor power consumption in portable electronics, ensuring efficient use of battery capacity.
2. Energy management systems: It enables accurate monitoring of power usage in residential and commercial buildings, facilitating energy efficiency improvements.
3. Industrial equipment: The IC can be used to monitor power consumption in machinery and optimize energy usage.
4. Electric vehicles: It provides precise measurements of power and energy consumption in electric vehicle charging systems.

Detailed and Complete Alternative Models

1. INA219: This IC offers similar functionality with a lower cost but has a narrower voltage range.
2. MAX471: It provides basic current and voltage monitoring capabilities at a lower cost but lacks the advanced features of the LTC2946HDE-1#PBF.
3. ADE7758: This energy metering IC offers higher accuracy and additional features but is more complex to integrate.

In conclusion, the LTC2946HDE-1#PBF is a high-precision power and energy monitor that finds applications in various fields. Its accurate measurements, wide voltage range, and low power consumption make it a versatile choice for power monitoring applications. However, it has some limitations such as a limited current measurement range and relatively higher cost compared to certain alternatives.