TSM917EUK+

Overview

The TSM917EUK+ is a nanopower analog comparator manufactured by Silicon Labs, designed as a second-source for the MAX917. It guarantees operation down to +1.8V with an ultra-low supply current of 750nA at 1.6V. The device features an internal 1.245V ±1.5% reference and input voltage range extending 200mV outside-the-rails. It includes internal hysteresis for clean switching and utilizes push-pull output drivers capable of driving 8mA loads.

Feature Summary

• Guaranteed operation down to +1.8V with ultra-low supply current
• Internal 1.245V ±1.5% voltage reference
• Input voltage range extends 200mV beyond power supply rails
• Push-pull output drivers with internal hysteresis

Applications

• 2-cell battery monitoring and management
• Medical instruments
• Threshold detectors and discriminators
• Sensing at ground or supply line
• Ultra-low-power systems

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm package type matches the SOT23-5 form factor. Check datasheet revisions for any updates to electrical characteristics. Ensure environmental compliance documentation aligns with project requirements. Validate operating temperature range specifications against application conditions.

Selection Notes

Select this component for applications requiring minimal power consumption in battery-operated devices. Consider the internal reference for simplified circuit design. Evaluate the rail-to-rail input capability for signals near supply limits. Assess the push-pull output drive strength for load requirements. Verify compatibility with existing system voltage levels.

Part Context

This part belongs to the TSM917 series of nanopower analog comparators from Silicon Labs. It is electrically and form-factor identical to the Maxim Integrated MAX917. The series is optimized for low-voltage, low-power applications where space and energy efficiency are critical constraints.

Replacement Considerations

The TSM917 is a second-source equivalent to the MAX917. Verify pinout and electrical specifications match before substitution. Ensure the replacement part meets the same operating temperature and voltage range requirements.