INA203AIDR

Current Regulation/Management Overview

The INA203AIDR is a unidirectional measurement current-shunt monitor manufactured by Texas Instruments. It operates with a supply voltage range of 2.7 V to 18 V and draws an operating supply current of 2.8 mA. The device supports input voltages from -16 V to 80 V, enabling high-side or low-side sensing. It features a dual comparator output and is housed in a 14-pin SOIC package. The component functions within a temperature range of -40°C to +125°C.

Current Regulation/Management Feature Summary

• Integrates dual comparators for immediate fault detection alongside the primary monitoring function
• Supports both high-side and low-side current sensing configurations across a wide common-mode voltage range
• Provides a voltage-output signal proportional to the sensed current for direct interface with data acquisition systems

Current Regulation/Management Applications

• High-speed current monitoring in industrial power supplies
• Overcurrent protection circuits in motor control systems
• Battery management system current sensing

Current Regulation/Management Procurement Notes

Verify the specific suffix 'AIDR' to confirm the SOIC-14 package and A-grade accuracy variant. Confirm that the unidirectional measurement capability aligns with the circuit design requirements. Ensure the -16 V to 80 V input range covers the maximum expected common-mode voltage. Check for RoHS compliance status if required by the manufacturing process.

Current Regulation/Management Selection Notes

Select this component when a combined current monitor and comparator solution is needed to reduce board space. The wide input voltage range allows flexibility in system architecture without additional level shifting. Consider the 14-pin SOIC package for standard surface-mount assembly processes. Evaluate the 2.8 mA supply current against total system power budgets.

Current Regulation/Management Part Context

This part belongs to the INA203 family of current shunt monitors. It differs from other variants primarily through its package type (SOIC) and accuracy grade. The family provides integrated solutions for monitoring and protection, distinguishing itself from discrete comparator and amplifier combinations.

Current Regulation/Management Replacement Considerations

The INA203AIPWR is a pin-compatible alternative available in a TSSOP-14 package. Verify that the reduced footprint of the TSSOP package fits the mechanical constraints of the target application.