ZXCT1021E5TA

Current Regulation/Management Overview

The ZXCT1021E5TA is a high-side current monitor manufactured by Diodes Incorporated, designed for precise current sensing applications. It operates within an input voltage range of 2.5 V to 20 V and features a typical quiescent supply current of 4 uA. The device offers high accuracy with a tolerance of ±1%. It is rated for operation across an extended temperature range from -40°C to +125°C. Packaged in a compact SOT-23-5 surface-mount case, it supports cut tape, reel, and Digi-Reel formats.

Current Regulation/Management Feature Summary

• Provides high-side current monitoring with ±1% accuracy
• Operates on low supply voltage ranging from 2.5 V to 20 V
• Features ultra-low quiescent current consumption of 4 uA
• Supports extended industrial temperature operations up to 125°C

Current Regulation/Management Applications

• Battery management systems
• Portable electronic devices
• Overcurrent protection circuits
• Power supply monitoring

Current Regulation/Management Procurement Notes

Verify the specific suffix E5TA against the manufacturer's latest datasheet to confirm package type and marking codes. Ensure compatibility with the target PCB footprint for the SOT-23-5 configuration. Check for any recent Product Change Notifications regarding leadframe materials or bond wire composition that may affect long-term reliability or solderability profiles during assembly.

Current Regulation/Management Selection Notes

Select this component when high precision is required alongside minimal power consumption. The ±1% accuracy distinguishes it from lower-precision variants like the ZXCT1022. Consider the 4 uA quiescent current for battery-powered designs where energy efficiency is critical. Verify that the 20 V maximum input voltage aligns with the system's rail specifications.

Current Regulation/Management Part Context

This part belongs to the ZXCT10 series of current monitors from Diodes Incorporated. It shares the same functional architecture as other members but differs in accuracy specifications. While the ZXCT1022 offers ±3% accuracy, the ZXCT1021 provides tighter ±1% tolerance, making it suitable for applications demanding stricter measurement fidelity within the same low-power constraint profile.

Current Regulation/Management Replacement Considerations

The ZXCT1022E5TA serves as a functional substitute if reduced accuracy (±3%) is acceptable. For higher voltage requirements, the ZXCT108x series may be considered, though pinouts and packages differ.