ZXCT1008QFTA

Overview

The ZXCT1008QFTA is an automotive-grade high-side current sense monitor manufactured by Diodes Incorporated. It translates the voltage developed across a current shunt resistor into a proportional output current, eliminating the need to disrupt ground planes during load sensing. The device operates within a supply voltage range of 2.5V to 20V and supports a maximum sense voltage of 500mV. It features a low quiescent current of 4µA and maintains accuracy within 2.5%. The component is designed for operation in temperatures ranging from -40°C to +125°C and is housed in a compact SOT-23-3 surface-mount package.

Feature Summary

• High-side current sensing capability that preserves ground plane integrity
• Automotive qualification ensuring reliability under harsh environmental conditions
• Low power consumption with minimal quiescent current draw
• Proportional output current generation scaled by external resistors

Applications

• Automotive current measurement systems
• DC motor and solenoid control circuits
• Over-current protection monitoring
• General power management applications

Procurement Notes

Verify the specific 'Q' suffix designation against official Diodes Incorporated documentation to confirm automotive grade compliance and AEC-Q100 qualification status. Ensure the ordering information matches the exact package type and temperature rating required for your design. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and traceability before procurement.

Selection Notes

Select this component when high-side sensing is required without ground disruption. It is suitable for applications demanding automotive reliability and wide operating temperature ranges. Consider the 2.5% accuracy and 500mV sense limit when designing the shunt resistor network. Ensure the external scaling resistor can handle the required power dissipation for the target current levels.

Part Context

This device belongs to the ZXCT1008 series of high-side current monitors. The 'Q' suffix typically denotes automotive qualification, while 'FTA' indicates the specific SOT-23-3 tape and reel packaging configuration. It serves as a specialized solution for precise current monitoring in power-sensitive environments where ground loop interference must be avoided.

Replacement Considerations

Consult official substitution guides for compatible high-side monitors. Verify pinout compatibility and electrical parameter alignment with alternative part numbers before implementation.