INA198AQDBVRCT

Current Regulation/Management Overview

The INA198AQDBVRCT is an automotive-grade, high-side current shunt monitor manufactured by Texas Instruments. It operates with a supply voltage range of 2.7 V to 18 V and supports common-mode voltages from -16 V to 80 V. The device features a fixed gain of 50 V/V, a bandwidth of 500 kHz, and a maximum quiescent current of 900 µA. It provides 3% accuracy over the operating temperature range of -40°C to +125°C and is housed in a SOT-23-5 package.

Current Regulation/Management Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for reliability in vehicle electronics.
• High common-mode voltage capability allowing measurement across wide input ranges up to 80 V.
• Fixed internal gain simplifies circuit design by eliminating external resistor networks.

Current Regulation/Management Applications

• Battery management systems in electric vehicles
• Motor control circuits
• Load switch monitoring

Current Regulation/Management Procurement Notes

Verify the specific suffix 'CT' indicates cut-tape packaging when sourcing. Confirm the AEC-Q100 grade designation matches project requirements. Ensure the SOT-23-5 footprint aligns with PCB layout constraints. Validate that the 50 V/V gain meets system signal conditioning needs without additional amplification stages.

Current Regulation/Management Selection Notes

Select this component for applications requiring robust high-side current sensing in automotive environments. The wide common-mode range accommodates various bus voltages. The low quiescent current supports battery-powered systems. Verify thermal performance within the specified -40°C to +125°C range for harsh operating conditions.

Current Regulation/Management Part Context

This part belongs to the INA198 family of current shunt monitors designed for precision measurements. The 'Q1' suffix denotes automotive qualification, while 'CT' specifies the tape-and-reel cut quantity format. It complements other TI solutions for power management and protection in complex electronic architectures.

Current Regulation/Management Replacement Considerations

Check datasheets for alternative parts like the INA198AIDBVR or INA193 series. Ensure pin compatibility and electrical specifications match before substitution. Verify that any replacement also holds necessary automotive certifications if required by the application.