INA301A3IDGKR

Current Regulation/Management Overview

The INA301A3IDGKR is a high-precision current sense amplifier with an integrated overcurrent comparator, manufactured by Texas Instruments. It operates within a supply voltage range of 2.7 V to 36 V and supports bidirectional current sensing. The device features a gain bandwidth product of 550 kHz and a slew rate of 4 V/µs. It is housed in an 8-pin VSSOP package (DGK) and is rated for operation from -40°C to +125°C. The fixed gain configuration provides accurate monitoring for shunt-based current measurement applications.

Current Regulation/Management Feature Summary

• Integrated overcurrent comparator for rapid fault detection
• High precision performance suitable for sensitive current monitoring
• Wide common-mode voltage range supporting various system voltages
• Bidirectional current sensing capability

Current Regulation/Management Applications

• Overcurrent protection circuits
• Battery management systems
• Industrial process control monitoring
• Power supply current limiting

Current Regulation/Management Procurement Notes

Verify the specific suffix IDGKR corresponds to the VSSOP-8 package and tape-and-reel orientation required for your assembly line. Confirm that the fixed gain setting matches your signal conditioning requirements without external resistor adjustments. Ensure thermal management aligns with the specified operating temperature range during peak load conditions.

Current Regulation/Management Selection Notes

Select this component when a built-in comparator is necessary to eliminate external logic or microcontroller intervention for fault handling. The fixed gain simplifies design complexity compared to programmable gain alternatives. Consider the 550 kHz bandwidth as sufficient for most standard switching power supply frequencies but verify against high-frequency noise environments.

Current Regulation/Management Part Context

This part belongs to the INA301 family of current sense amplifiers designed for cost-effective and space-constrained applications. The A3 variant indicates a specific fixed gain configuration, distinguishing it from other gain options within the same series. It complements higher-performance devices like the INA241 or INA310 by offering integrated protection features at a lower complexity level.

Current Regulation/Management Replacement Considerations

Direct substitutes include other INA301 variants with different gain settings if the comparator threshold remains acceptable. For pin-compatible upgrades requiring higher precision, consider the INA301B series. Verify that any replacement maintains the 36V maximum rating and VSSOP-8 footprint.