LT1990IS8-10#TRPBF

Product Overview

Category

The LT1990IS8-10#TRPBF belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in electronic circuits for current sensing and monitoring applications.

Characteristics

• High accuracy: The LT1990IS8-10#TRPBF offers high precision current measurement with low offset voltage and excellent linearity.
• Wide input voltage range: It can handle a wide range of input voltages, making it suitable for various applications.
• Low power consumption: This IC has low power requirements, making it energy-efficient.
• Small package size: The LT1990IS8-10#TRPBF comes in a compact S8 package, which saves space on the circuit board.
• Robust design: It is designed to withstand harsh operating conditions and provide reliable performance.

Package and Quantity

The LT1990IS8-10#TRPBF is available in an S8 package. Each package contains one unit of the IC.

Specifications

• Supply Voltage Range: 2.7V to 36V
• Input Common Mode Voltage Range: -0.3V to VCC+0.3V
• Operating Temperature Range: -40°C to 125°C
• Gain Error: ±0.1%
• Offset Voltage: ±50µV
• Bandwidth: 500kHz
• Quiescent Current: 200µA

Pin Configuration

The LT1990IS8-10#TRPBF has eight pins arranged as follows:

```

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| | --| V+ OUT |-- --| IN+ GND |-- --| IN- REF |-- --| V- NC |-- |___________| ```

Pin Description: - V+: Positive supply voltage - OUT: Output pin - IN+: Non-inverting input - GND: Ground - IN-: Inverting input - REF: Reference voltage - V-: Negative supply voltage - NC: No connection

Functional Features

• High accuracy current sensing: The LT1990IS8-10#TRPBF provides precise measurement of current flowing through a circuit.
• Wide input voltage range: It can handle a wide range of input voltages, making it suitable for various applications.
• Low power consumption: This IC consumes minimal power, reducing energy requirements.
• Overvoltage protection: The LT1990IS8-10#TRPBF is designed to withstand overvoltage conditions, ensuring the safety of the circuit.
• Thermal shutdown: It incorporates a thermal shutdown feature to prevent damage due to excessive heat.

Advantages and Disadvantages

Advantages

• High accuracy current measurement
• Wide input voltage range
• Low power consumption
• Compact package size
• Robust design for reliable performance

Disadvantages

• Limited bandwidth compared to some other current sensing ICs
• Higher cost compared to less accurate alternatives

Working Principles

The LT1990IS8-10#TRPBF operates based on the principle of measuring the voltage drop across a sense resistor in series with the current being monitored. It amplifies this voltage drop and provides an output proportional to the current. The IC's internal circuitry ensures high accuracy and linearity in the measurement.

Application Field Plans

The LT1990IS8-10#TRPBF finds applications in various fields, including:

1. Power management systems: It can be used for current monitoring in power supplies, battery chargers, and DC-DC converters.
2. Motor control: The IC enables precise current sensing in motor control circuits, ensuring efficient and safe operation.
3. Industrial automation: It is suitable for current monitoring in industrial equipment, such as robotics, PLCs, and motor drives.
4. Automotive electronics: The LT1990IS8-10#TRPBF can be used for current sensing in automotive applications like electric vehicles, battery management systems, and engine control units.

Alternative Models

1. INA219: This IC offers similar functionality with a higher bandwidth but may have slightly lower accuracy.
2. ACS712: It provides current sensing capabilities with different package options and lower cost, but with reduced accuracy compared to the LT1990IS8-10#TRPBF.
3. MAX4080: This IC offers high accuracy current sensing with a wider supply voltage range, but it comes in a different package and may have a higher cost.

In conclusion, the LT1990IS8-10#TRPBF is a highly accurate current sensing IC with a wide input voltage range and low power consumption. Its compact package and robust design make it suitable for various applications in power management, motor control, industrial automation, and automotive electronics. While it has limited bandwidth