TSM9117ESA+T

Overview

The TSM9117ESA+T is a nanopower analog comparator manufactured by Silicon Laboratories, designed for ultra-low-power applications. It operates down to +1.6V with a supply current of 600nA and includes an internal 1.252V ±1.75% reference voltage. The device features a push-pull output capable of driving 5mA loads, input voltage range extending 200mV outside the rails, and no phase reversal for overdriven inputs. It is housed in an 8-pin SOIC package.

Feature Summary

• Guaranteed operation down to +1.6V supply voltage
• Ultra-low supply current consumption of 600nA
• Internal 1.252V ±1.75% reference voltage
• Push-pull output driver capable of driving 5mA loads

Applications

• 2-cell battery monitoring and management systems
• Medical instruments requiring low power consumption
• Threshold detectors and discriminators
• Sensing at ground or supply line
• Mobile communications and telemetry systems

Procurement Notes

Verify that the ordering suffix '+T' corresponds to the tape and reel packaging configuration as specified in the manufacturer's documentation. Confirm the component is lead-free compliant. Ensure the part number matches the specific silicon revision and electrical characteristics defined in the official datasheet before procurement.

Selection Notes

Select this component when an internal voltage reference is required alongside ultra-low power consumption. The push-pull output is suitable for direct load driving without external pull-up resistors. Consider the open-drain variants if wired-OR logic or level shifting between different supply voltages is necessary for the system design.

Part Context

This component belongs to the TSM9117-TSM9120 family of nanopower comparators from Silicon Laboratories. These devices are electrically and form-factor identical to the MAX9117-MAX9120 family, serving as a second-source alternative. The family covers both comparator-only and reference-integrated options in SC70 and SOIC packages.

Replacement Considerations

The TSM9117 is electrically equivalent to the Maxim Integrated MAX9117. Verify pinout compatibility and ensure the replacement supports the required operating temperature range and supply voltage specifications.