TSM9117EXK+

Overview

The TSM9117EXK+ is a nanopower analog comparator from the TSM911x series, manufactured by Silicon Labs. It features a push-pull output stage and an internal 1.252V reference with ±1.75% accuracy. The device operates on supply voltages ranging from 1.6V to 5.5V, drawing a typical supply current of 600nA at 1.6V. Key electrical characteristics include a maximum input offset voltage of 5mV, 4mV internal hysteresis, and propagation delays between 14µs and 45µs depending on conditions. It is housed in a 5-pin SC-70 surface-mount package.

Feature Summary

• Push-pull output driver capable of driving loads directly without external pull-up resistors
• Integrated precision voltage reference for simplified threshold detection circuits
• Robust input stage allowing operation with signals extending beyond supply rails
• Internal hysteresis mechanism ensures clean switching transitions

Applications

• Two-cell battery monitoring and management systems
• Medical instruments requiring low power consumption
• Threshold detectors and discriminators
• Ultra-low-power sensing applications at ground or supply lines

Procurement Notes

Verify component authenticity through authorized channels as this part may be subject to second-source availability changes. Confirm lead-free packaging compliance and check for specific EOL notifications or PCN updates regarding shipping media or labeling modifications prior to final procurement decisions.

Selection Notes

Select the TSM9117EXK+ when a rail-to-rail push-pull output is required for direct logic interfacing. Choose this variant over open-drain versions if minimizing external component count is a priority. Ensure the application voltage range falls within the guaranteed 1.6V to 5.5V operational limits for optimal performance.

Part Context

This component belongs to the TSM9117-TSM9120 family of nanopower comparators, which are electrically and form-factor identical to the MAX9117-MAX9120 series. The family includes variants with and without internal references, as well as push-pull and open-drain output options, all designed for ultra-low power battery-operated applications.

Replacement Considerations

The TSM9117EXK+ is functionally equivalent to the Maxim Integrated MAX9117. Verify pinout compatibility and electrical specifications against the original design requirements before substituting.