INA303A2IPW

Current Regulation/Management Overview

The INA303A2IPW is a high-speed precision current sense amplifier manufactured by Texas Instruments, housed in a 14-TSSOP surface-mount package. It supports bidirectional current sensing with low-side capability and features an integrated alert function for overcurrent protection. The device operates within a supply voltage range of 2.7 V to 5.5 V and withstands common-mode voltages from 0 V to 36 V. Key electrical specifications include a minimum common-mode rejection ratio (CMRR) of 100 dB, a maximum input offset voltage of 80 µV, and a typical input offset drift of 0.1 µV/°C. It offers selectable gains of 20 V/V, 50 V/V, and 100 V/V, with bandwidths ranging from 450 kHz to 550 kHz depending on the gain setting.

Current Regulation/Management Feature Summary

• Provides bidirectional current sensing with low-side configuration support for versatile circuit integration.
• Integrates an alert function to facilitate immediate overcurrent protection responses.
• Delivers high-speed performance with selectable gain options to balance bandwidth and sensitivity requirements.

Current Regulation/Management Applications

• Overcurrent protection circuits requiring precise fault detection
• High-speed precision current monitoring in power management systems
• Low-side current sensing applications in industrial equipment

Current Regulation/Management Procurement Notes

Verify the specific suffix 'IPW' confirms the tube packaging variant rather than the 'R' tape-and-reel version. Confirm the A2 grade designation matches the required gain accuracy and offset voltage specifications for your design. Ensure the 14-TSSOP footprint aligns with your PCB layout constraints. Check RoHS3 compliance status if required by your manufacturing standards. Validate that the operating temperature range meets your environmental conditions.

Current Regulation/Management Selection Notes

Select this component when bidirectional sensing with low-side capability is required alongside high-speed response. The A2 grade offers specific gain and offset tolerances suitable for precision applications. Consider the trade-off between bandwidth and gain, as higher gains reduce the available bandwidth. Ensure the 36 V common-mode voltage range exceeds your system's maximum bus voltage. Verify that the 14-TSSOP package is compatible with your assembly process.

Current Regulation/Management Part Context

The INA303 belongs to Texas Instruments' family of high-speed precision current sense amplifiers. It shares functional similarities with the INA302 but offers distinct performance characteristics regarding bandwidth and gain options. The device is designed for applications demanding accurate current measurement in noisy environments. It complements other PMIC solutions by providing dedicated analog current monitoring with digital alert outputs.

Current Regulation/Management Replacement Considerations

The INA303A2IPWR is the identical functional equivalent packaged in tape-and-reel format instead of tubes. The INA303A1IPWR offers different gain configurations and should be verified for compatibility. Cross-reference with the INA302 series only if the specific bandwidth and gain profiles match the application requirements.