INA199C1RSWR

Current Regulation/Management Overview

The INA199C1RSWR is a single-channel, bidirectional current sense amplifier from Texas Instruments. It operates within a supply voltage range of 2.7 V to 26 V and supports a common-mode voltage up to 12 V. The device features a fixed gain of 50 V/V, a gain bandwidth product of 80 kHz, and a slew rate of 400 mV/us. Key electrical specifications include an input offset voltage of 5 uV, input bias current of 28 uA, and input offset current of 20 nA. It provides a common-mode rejection ratio of 120 dB and maintains a gain error of 0.03%. The component functions in temperatures from -40 C to +125 C and is housed in a UQFN-10 package.

Current Regulation/Management Feature Summary

• Bidirectional current sensing capability for monitoring flow in both directions
• Zero-drift architecture utilizing chopper stabilization for high precision
• Integrated shutdown function to minimize power consumption during idle states

Current Regulation/Management Applications

• High-side and low-side current monitoring in industrial systems
• Battery management systems requiring precise charge/discharge tracking
• Overcurrent protection circuits in motor control applications

Current Regulation/Management Procurement Notes

Verify the specific suffix RSWR corresponds to the UQFN-10 package configuration. Confirm RoHS compliance status through official manufacturer documentation. Ensure the ordering part number matches the required gain and accuracy grade. Check humidity sensitivity levels for proper storage and handling requirements before assembly.

Current Regulation/Management Selection Notes

Select this model when a fixed 50 V/V gain is appropriate for the shunt resistor value. The 12 V common-mode voltage limit defines the maximum bus voltage compatibility. Consider the 65 uA operating current for low-power system designs. Verify that the UQFN-10 footprint fits the available PCB space constraints.

Current Regulation/Management Part Context

This component belongs to the INA199 family of zero-drift current sense amplifiers. It shares architectural similarities with variants like INA199A1 and INA199B1 but differs in gain settings and package options. The series is designed for applications demanding high accuracy without external calibration.

Current Regulation/Management Replacement Considerations

INA199C1DCKR offers identical electrical performance in an SC-70-6 package. INA199C1QDCKRQ1 provides automotive qualification under AEC-Q100 standards.