INA299-Q1 Current Sense Amplifiers


INA299-Q1 Current Sense Amplifiers

Manufacturer

Part #

Category

Texas Instruments INA299-Q1 Semiconductors

Description

Texas Instruments INA299-Q1 Current Sense Amplifiers are precise, bidirectional devices that can measure voltage drops across shunt resistors over a wide common-mode range from -2V to 80V. These amplifiers are AEC-Q100 qualified and operate from a single 2.7V to 12V supply voltage, drawing 650µA of supply current. Ideal for automotive applications, they are available in three gain options: 20V/V, 50V/V, and 100V/V.

Texas Instruments INA299-Q1 Current Sense Amplifiers

Introduction

The INA299-Q1 Current Sense Amplifiers from Texas Instruments are advanced devices designed for precise current measurement in automotive applications. With their ability to operate over a wide common-mode voltage range, these amplifiers are ideal for various high-performance applications.

Part Description

The INA299-Q1 amplifiers are bidirectional current sense amplifiers that measure voltage drops across shunt resistors. They are AEC-Q100 qualified, ensuring reliability in automotive environments. These amplifiers operate from a single supply voltage of 2.7V to 12V and draw a low supply current of 650µA. They are available in three gain options: 20V/V, 50V/V, and 100V/V, making them versatile for different applications. The devices are specified to function within a temperature range of -40°C to 125°C and come in a compact 6-pin SOT-23 package.

Applications

  • eTurbo/chargers
  • Electric Power Steering (EPS)
  • Starter/generators
  • Regenerative braking systems
  • Brake systems

Industries

  • Automotive
  • Electric Vehicles
  • Industrial Automation
  • Robotics
  • Renewable Energy Systems

Usage Ideas

  1. Electric Vehicle Monitoring: Use the INA299-Q1 to monitor current flow in electric vehicle battery systems, ensuring efficient energy management and safety.
  2. Regenerative Braking System: Implement the amplifier in a regenerative braking system to accurately measure the current generated during braking, optimizing energy recovery.
  3. Power Steering Control: Integrate the INA299-Q1 in an electric power steering system to provide real-time feedback on current usage, enhancing steering responsiveness and efficiency.

Conclusion

The Texas Instruments INA299-Q1 Current Sense Amplifiers are essential components for modern automotive applications, offering precision and reliability in current measurement. Their wide common-mode range, low power consumption, and AEC-Q100 qualification make them suitable for various demanding environments, paving the way for innovative designs in the automotive industry and beyond.