ZXCT180B2W5-7

Overview

The ZXCT180B2W5-7 is a high-bandwidth current monitor manufactured by Diodes Incorporated, designed for precise current sensing applications. It operates with a maximum supply voltage of 36 V and features a wide common-mode input range extending up to 26 V. The device provides a fixed voltage gain of 50 V/V, ensuring the output voltage remains proportional to the load current. Key electrical specifications include a small-signal bandwidth of 400 kHz and a large-signal slew rate of 2 V/μs. It functions within an operating temperature range of -40°C to +125°C and is housed in a compact SOT-25-5 package.

Feature Summary

• Provides a fixed 50 V/V voltage gain for accurate current-to-voltage conversion
• Supports bidirectional and unidirectional current sensing capabilities
• Features high-speed response with 400 kHz bandwidth and 2 V/μs slew rate

Applications

• High-side current monitoring in industrial systems
• Current sensing in automotive electronic control units
• Power management circuits requiring fast transient detection

Procurement Notes

Verify the specific suffix 'B2' against official Diodes Incorporated documentation to confirm the exact gain configuration and pinout compatibility before procurement. Ensure the selected component meets the required AEC-Q100 Grade 1 qualification if intended for automotive deployment. Cross-reference the datasheet revision date to guarantee alignment with current manufacturing standards and environmental compliance requirements.

Selection Notes

Select this component when a fixed 50 V/V gain is required for high-side current monitoring applications. It is suitable for designs needing rapid response to current changes due to its 400 kHz bandwidth. Consider the SOT-25-5 package for space-constrained layouts. Verify that the system's common-mode voltage does not exceed the 26 V limit and that the supply voltage remains within the 2.5 V to 36 V operational range.

Part Context

This part belongs to the ZXCT18xQ series of high-bandwidth current monitors from Diodes Incorporated. The series includes variants supporting both unidirectional and bidirectional sensing. These devices are engineered for cost-effective solutions in demanding environments, offering robust performance across a wide temperature range and providing flexible PCB layout options through distinct pin configurations.

Replacement Considerations

Consult official substitution lists for verified equivalents. Generic LDOs or standard op-amps do not provide the integrated shunt sensing and fixed gain characteristics required for direct replacement.