TSM9119EXK+

Overview

The TSM9119EXK+ is a nanopower analog comparator from the TSM9117-TSM9120 family, manufactured by Silicon Labs. It operates on a single supply voltage ranging from +1.6V to +5.5V and draws a typical supply current of 350nA at +1.6V. This device features a push-pull output stage capable of driving loads with rail-to-rail swings. It includes internal hysteresis for clean switching and robust input stages that tolerate voltages extending 200mV beyond the supply rails without phase reversal.

Feature Summary

• Ultra-low power consumption suitable for battery-operated systems
• Push-pull output drivers designed to minimize supply-current surges during transitions
• Robust input stage allowing operation with signals outside the supply rails
• Internal hysteresis eliminates the need for external components to prevent oscillation

Applications

• Two-cell battery monitoring and management
• Medical instruments requiring low-power signal processing
• Threshold detectors and discriminators
• Sensing applications at ground or supply lines
• Telemetry and remote systems

Procurement Notes

Verify the specific ordering suffix to confirm the packaging format. The 'EXK+' designation indicates a lead-free component in a 5-pin SC-70 package. Confirm whether the '+T' suffix is required for tape-and-reel delivery versus bulk tube packaging. Ensure compatibility with the target PCB footprint and verify RoHS compliance status through official manufacturer documentation before finalizing procurement.

Selection Notes

Select the TSM9119EXK+ when an internal voltage reference is not required, as it offers lower supply current compared to the TSM9117/TSM9118 variants. Choose this part over open-drain versions if direct rail-to-rail drive capability is needed without external pull-up resistors. Ensure the application voltage stays within the guaranteed operating range of +1.6V to +5.5V for optimal performance.

Part Context

This component belongs to the TSM9117-TSM9120 series of nanopower comparators. It is electrically and form-factor identical to the Maxim MAX9117-MAX9120 family. The TSM9119 specifically denotes the comparator-only version with a push-pull output, distinguishing it from the reference-equipped TSM9118 and the open-drain TSM9120.

Replacement Considerations

The TSM9119EXK+ is a second-source equivalent for the Maxim MAX9119. Verify pinout compatibility and electrical specifications against the original design requirements when substituting.