Nano-power comparator for always-on sense circuits
The Texas Instruments TLV7041DCKT is a single-channel, general-purpose comparator. Its 900 nA quiescent current lets it sit on a battery rail continuously without draining the cell — think threshold monitors, wake-up circuits, and undervoltage lockouts in portable or remote gear. Supply range from 1.6 V to 6.5 V covers single-cell Li-ion through 5 V logic rails. The open-drain output pulls to whatever pull-up voltage you supply, making level translation to a higher Vdd straightforward. Propagation delay is 3 µs typical — fast enough for most slow-sensor and power-good loops, not for high-speed PWM or encoder edges. Built-in 17 mV hysteresis keeps the output clean on noisy inputs without external resistors.
Temperature range and environment
Rated for -40°C to 125°C operating temperature, the TLV7041DCKT handles outdoor telecom cabinets, engine-bay electronics, and factory-floor sensor interfaces without derating. No AEC-Q100 mark in the record, but the temperature range alone qualifies it for many industrial and automotive body-domain roles where formal automotive certification isn't required.
Package and footprint
Housed in a 5-lead SC-70 (SOT-353) package, this comparator takes up minimal board area. The small size suits compact sensor modules, wearable PCBs, and multi-channel arrays where board space is tight. Surface-mount only; no through-hole option.
Lifecycle and sourcing
Listed as Active with ROHS3 compliance. For dual-sourcing considerations, the TLV9032DDFR is a dual-channel push-pull comparator with 100 ns propagation delay — a different output stage and speed class, not a pin-compatible substitute, but worth noting if your design needs a faster dual option.