TSM917EUK+T

Overview

The TSM917EUK+T is a nanopower analog comparator manufactured by Silicon Labs, designed for low-voltage applications. 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

• Ultra-low power consumption with guaranteed operation at +1.8V
• Robust input stage tolerating voltages beyond supply rails
• Integrated 1.245V reference with internal hysteresis

Applications

• 2-cell battery monitoring and management
• Medical instruments
• Threshold detectors and discriminators
• Ultra-low-power systems

Procurement Notes

Verify the specific ordering suffix 'T' indicates tape and reel packaging containing 3000 units. Confirm lead-free status as standard for this product line. Ensure compatibility with -40°C to +85°C operating temperature range requirements. Cross-reference pinout details for the 5-pin SOT23 package against target PCB layout specifications.

Selection Notes

Select this component when minimizing supply current is critical for battery-operated devices. The integrated reference eliminates external components, reducing board space. Verify that the 4mV internal hysteresis meets noise immunity requirements without additional external resistors. Consider the push-pull output capability if driving moderate loads directly.

Part Context

This part belongs to the TSM917 series of nanopower analog comparators. It serves as a second-source equivalent to the MAX917, maintaining electrical and form-factor identity. The series focuses on energy-efficient signal processing for portable electronics and sensor interfaces requiring high precision at minimal power levels.

Replacement Considerations

The datasheet explicitly identifies the TSM917 as electrically and form-factor identical to the MAX917. This direct equivalence allows for drop-in replacement in existing designs utilizing the MAX917 without circuit modifications.