ISL90462UIE627-TK

Digital Potentiometers Overview

The ISL90462UIE627-TK is a single volatile digitally controlled potentiometer (XDCP) manufactured by Renesas Electronics Corporation. It features 32 wiper tap points and an end-to-end resistance of 50kΩ, with a tolerance range of 40kΩ to 60kΩ. The device operates on a 2-pin Up/Down interface for wiper position control and functions within a supply voltage range of 2.7V to 5.5V. Designed for industrial applications, it supports a temperature range from -40°C to +85°C and utilizes a 6-lead SC-70 surface-mount package.

Digital Potentiometers Feature Summary

• Configured as a variable resistor with 32 discrete wiper tap points
• Controlled via a simple 2-pin Up/Down (U/D) and Chip Select (CS) interface
• Low power consumption with active current of 25µA maximum and standby current of 0.3µA typical
• Temperature coefficient of ±35ppm/°C typical

Digital Potentiometers Applications

• LCD contrast control
• Parameter and bias adjustments in industrial systems
• Transducer adjustment for pressure, temperature, and optical sensors
• Laser diode driver biasing
• Gain control and offset adjustment circuits

Digital Potentiometers Procurement Notes

Verify the specific ordering suffix 'TK' against manufacturer documentation to confirm tape and reel packaging specifications. Confirm that the component meets RoHS compliance requirements if lead-free processing is necessary for the assembly process. Ensure the SC-70 package dimensions align with the PCB footprint design constraints.

Digital Potentiometers Selection Notes

Select this component when a 50kΩ resistance value is required for digitally adjustable circuits. The 32-tap resolution provides sufficient granularity for many analog control applications. Verify that the volatile memory characteristic is acceptable, as the wiper position will reset upon power loss. Ensure the operating voltage remains within the 2.7V to 5.5V range for proper functionality.

Digital Potentiometers Part Context

This part belongs to the ISL90462 family of single volatile XDCPs. Other variants in the series offer different total resistance values, such as 10kΩ (W version) and 100kΩ (T version), while maintaining the same 32-tap architecture and interface. The device was originally developed by Intersil Americas Inc. before being acquired by Renesas Electronics.

Digital Potentiometers Replacement Considerations

Direct substitutes include other ISL90462 variants with matching resistance values but different packages, such as ISL90462UIH627-TK in SOT-23. Cross-model replacements require verification of pin compatibility and electrical parameters. No alternative part numbers are explicitly listed as direct equivalents in the provided datasheet.