INA194AQDBVRQ1

Current Regulation/Management Overview

The INA194AQDBVRQ1 is an automotive-grade current and power monitor manufactured by Texas Instruments. It features a high-side sensing architecture with an input voltage range spanning from -16 V to 80 V. The device operates on a supply voltage between 2.7 V and 18 V, drawing a typical operating supply current of 900 uA. It provides an accuracy of 3% and functions within a temperature range of -40 C to +125 C. The component is housed in a SOT-23-5 package and holds AEC-Q100 qualification for automotive applications.

Current Regulation/Management Feature Summary

• Supports bidirectional current monitoring with a wide common-mode voltage range extending down to -16 V
• Provides accurate current and power measurement suitable for automotive systems
• Operates reliably across extended industrial and automotive temperature ranges

Current Regulation/Management Applications

• Automotive battery management systems
• High-side current monitoring in electric vehicles
• Power distribution units in automotive networks

Current Regulation/Management Procurement Notes

Verify the specific suffix and revision level against the official Texas Instruments datasheet to ensure compatibility with your design requirements. Confirm that the AEC-Q100 qualification status meets your project's automotive reliability standards. Check for any recent product lifecycle notices or obsolescence warnings directly from the manufacturer before finalizing procurement plans.

Current Regulation/Management Selection Notes

Select this component when high-side sensing with a wide negative common-mode voltage range is required. Ensure the 3% accuracy specification aligns with your system's measurement tolerance needs. Verify that the SOT-23-5 package fits your PCB layout constraints and that the 18 V maximum supply voltage is sufficient for your logic interface.

Current Regulation/Management Part Context

This part belongs to the INA194 series of current monitors designed for automotive environments. It complements other Texas Instruments solutions like the INA186 and INA299 families, offering specialized high-side monitoring capabilities. The QDBVRQ1 designation indicates its automotive qualification and surface-mount packaging format within the broader TI analog portfolio.

Current Regulation/Management Replacement Considerations

Consult the official TI replacement matrix for direct pin-to-pin alternatives. Consider the INA198AQDBVRQ1 for similar high-side monitoring if the negative common-mode range is not required. Verify functional equivalence and parameter alignment before substituting.