ACS710KLATR-25CB-T

Current Sensors Overview

The Allegro ACS710KLATR-25CB-T is a high-voltage isolation current sensor IC featuring integrated overcurrent detection. It utilizes a precision linear Hall sensor and a copper conduction path for bidirectional current sensing up to 25A. The device offers a bandwidth of 120 kHz and a sensitivity of 28mV/A at 5V supply. Operating voltage ranges from 3V to 5.5V, with an output type that is ratiometric voltage. The package is a 16-SOIC (0.295", 7.50mm width). Key electrical parameters include a response time of 4µs, linearity of ±0.25%, and accuracy of ±2.9%. The operating temperature range spans from -40°C to +125°C.

Current Sensors Feature Summary

• High-voltage isolation between primary conductor and secondary circuit
• Integrated overcurrent fault detection with user-adjustable thresholds
• Proprietary shielding technology provides immunity to dv/dt and stray electric fields
• Chopper stabilization ensures extremely stable quiescent output voltage

Current Sensors Applications

• Industrial motor control systems
• Commercial power supply monitoring
• Communications equipment current sensing
• Battery management systems

Current Sensors Procurement Notes

Verify the specific suffix 'NL' or absence thereof against the manufacturer's latest datasheet, as packaging variations may exist. Confirm the 16-SOIC package dimensions match the design footprint requirements. Ensure the 25A rating aligns with the thermal dissipation capabilities of the target PCB layout. Cross-reference the part number with official Allegro MicroSystems documentation to confirm current production status and any recent parameter updates.

Current Sensors Selection Notes

Select this component when high-voltage isolation and precise bidirectional current measurement are required in a compact surface-mount package. The 25A rating suits moderate-power applications where low primary resistance minimizes power loss. Consider the 120 kHz bandwidth for dynamic load monitoring. The integrated overcurrent detection simplifies protection circuitry design compared to discrete solutions. Verify compatibility with the system's supply voltage range of 3V to 5.5V.

Current Sensors Part Context

The ACS710 series represents Allegro MicroSystems' evolution in isolated current sensing, combining Hall effect technology with on-chip signal conditioning. This model specifically targets applications requiring robust isolation and fast transient response. It differs from earlier generations by offering improved noise immunity and integrated fault detection features within the same SOIC-16 form factor, facilitating direct upgrades in existing designs.

Current Sensors Replacement Considerations

Direct substitutes within the ACS710 family include ACS710KLATR-10BB-T for lower current ratings and ACS710KLATR-6BB-T for even smaller scale applications. For higher current needs, ACS710KLATR-25CB-T is the reference; however, check for updated revisions like ACS710KLATR-25CB-NL-T if lead-free or specific packaging variants are mandated. Always verify pinout compatibility before substitution.

Current Sensors FAQ

What is the primary mechanism for current sensing in this IC?

It uses a precision linear Hall sensor integrated with a copper conduction path on the silicon surface. The external current flowing through the path generates a magnetic field detected by the Hall element.

How does the device handle high-frequency noise?

Proprietary integrated shielding provides high-level immunity to dv/dt and stray electric fields, resulting in low output ripple and offset drift suitable for noisy environments.