ISL21010CFH341Z-T7A

Overview

The ISL21010CFH341Z-T7A is a precision micropower bandgap voltage reference manufactured by Renesas Electronics Corporation. It provides a fixed output voltage of 4.096V with an initial accuracy of ±0.2%. The device operates within an input voltage range of 4.2V to 5.5V and delivers up to 25mA of sourcing current. Key electrical characteristics include a typical supply current of 100µA, a temperature coefficient of 50ppm/°C, and low-frequency noise specifications of 112µVp-p (0.1Hz to 10Hz) and 56µVrms. It is housed in a compact SOT-23-3 package and supports an operating temperature range from -40°C to +125°C.

Feature Summary

• Provides high-precision voltage referencing with ±0.2% initial accuracy for stable circuit performance.
• Features micropower consumption suitable for battery-operated and energy-efficient designs.
• Delivers robust load regulation with up to 25mA output current sourcing capability.
• Operates reliably across extended industrial temperature ranges without degradation.

Applications

• Battery management and monitoring systems
• Portable instrumentation devices
• Consumer and medical electronics
• Power regulation circuits

Procurement Notes

Verify the specific suffix 'T7A' corresponds to the required tape-and-reel packaging configuration for automated assembly lines. Confirm that the 4.096V output variant aligns with the target design requirements, as the ISL21010 family offers multiple voltage options. Ensure compatibility with the SOT-23-3 footprint during PCB layout. Check for any recent Product Change Notifications regarding labeling or manufacturing site updates before finalizing procurement orders.

Selection Notes

Select this component when a fixed 4.2V minimum input voltage is acceptable, distinguishing it from lower-voltage variants like the -10 or -12 series. The 50ppm/°C temperature coefficient meets standard precision requirements, though tighter tolerance options exist within the broader ISL21010 family. Evaluate the 100µA supply current against system power budgets to ensure efficiency targets are met. The SOT-23-3 package is ideal for space-constrained applications requiring surface-mount technology.

Part Context

The ISL21010CFH341Z-T7A belongs to the ISL21010 series of micropower voltage references designed by Renesas Electronics. This series integrates a bandgap reference core with output buffering to provide stable voltages in small packages. The CFH341 designation specifically indicates the 4.096V output version with ±0.2% accuracy. The T7A suffix denotes the reel packaging format used for high-volume surface-mount production.

Replacement Considerations

Direct substitutes include other ISL21010 variants with different output voltages if the 4.096V requirement can be adjusted. Cross-reference with Intersil legacy part numbers if maintaining historical bill-of-materials consistency is necessary. Verify pinout compatibility with existing SOT-23-3 footprints before replacing similar voltage references from other manufacturers.