ZRT100GC1TC

Overview

The ZRT100GC1TC is a monolithic integrated circuit providing a precise stable reference voltage of 9.8V at 500µA. It features a knee current of 150 µA and operates over a wide range of temperatures and currents. The device offers a trim facility to adjust the output voltage within a ±5% range, compensating for system errors or setting specific values. When unused, the trim pin should be left open circuit. It is available in SOT223 packages with 1% initial voltage tolerance versions.

Feature Summary

• Trimmable output voltage capability
• Excellent temperature stability
• Low output noise figure
• No external stabilising capacitor required in most cases

Applications

• System error compensation
• Precision reference voltage setting
• Temperature dependent electrical applications

Procurement Notes

Verify the exact part number against official manufacturer documentation before procurement. Confirm that the ordering suffix aligns with the required grade (C grade -40 to 85°C) and package type (SOT223). Ensure compatibility with existing design specifications regarding operating current ranges and absolute maximum ratings. Cross-reference datasheet revisions to confirm current availability and specification accuracy.

Selection Notes

Select this component when a stable 9.8V reference is needed with adjustable output precision. Consider the 1% initial voltage tolerance and low temperature coefficient for high-accuracy requirements. Evaluate the operating current range from 0.15 mA to 30 mA against system power constraints. Verify thermal dissipation capabilities within the specified ambient temperature limits.

Part Context

The ZRT100 series includes variants like ZRT100GC2 and ZRT100GA1, offering different tolerances and temperature grades. The GC1 variant specifically provides 1% tolerance within the C grade temperature range. These devices are designed for surface mount applications using the SOT223 package, ensuring compact integration into electronic circuits requiring reliable voltage references.

Replacement Considerations

Direct substitutes include ZRT100GC2 for 2% tolerance or ZRT100GA1 for extended temperature range. Verify pinout compatibility and electrical characteristics match the original design requirements before substitution.

FAQ

How is the output voltage adjusted?

The output voltage can be trimmed over a ±5% range using the TRIM pin. Connect a resistor between the TRIM pin and ground to adjust the voltage.

What happens if the trim facility is not used?

When the trim facility is not utilized, the TRIM pin should be left open circuit to maintain the standard 9.8V output.