TLV7042QDDFRQ1

Comparators Overview

The TLV7042QDDFRQ1 is a dual-channel, low-power comparator from Texas Instruments, qualified for automotive applications under AEC-Q100 standards. It operates within a supply voltage range of 1.6 V to 6.5 V and features rail-to-rail common-mode input voltage capability. The device consumes a typical quiescent current of 315 nA per channel at 1.8 V. It includes internal hysteresis of 6.5 mV and an internal Power-On-Reset circuit to ensure a known startup condition. The output stage is open-drain, allowing the output to be pulled beyond VCC. It supports an ambient operating temperature range from –40°C to +125°C.

Comparators Feature Summary

• Automotive qualification compliant with AEC-Q100 Grade 1 specifications
• Rail-to-rail input stage extending 100 mV beyond the positive supply rail
• Internal hysteresis eliminates noise-induced output oscillation
• Open-drain output configuration enables flexible pull-up voltage selection

Comparators Applications

• Telematics eCall systems
• Automotive head unit signal processing
• Instrument cluster monitoring
• On-board (OBC) & wireless chargers

Comparators Procurement Notes

Verify the specific ordering suffix matches the required package type and tape-and-reel quantity. Confirm that the component meets the functional safety documentation requirements if utilized in safety-critical designs. Ensure the selected variant aligns with the intended automotive grade and temperature range specifications before finalizing procurement orders.

Comparators Selection Notes

Select this component when designing space-constrained or power-sensitive automotive circuits requiring fast response times at minimal power consumption. The open-drain output is suitable for interfacing with logic levels higher than the supply voltage via external pull-ups. Consider the internal hysteresis for noisy environments where clean digital outputs are necessary without adding external components.

Comparators Part Context

This part belongs to the TLV70x-Q1 family of nanopower comparators designed for infotainment, telematics, and head unit applications. The '4' in the model number indicates a dual-channel configuration, while the 'Q1' suffix denotes automotive qualification. The 'DDFR' suffix specifies the VSSOP-8 package with specific reel quantities.

Comparators Replacement Considerations

TLV7032QDDFRQ1: Identical electrical characteristics but features a push-pull output stage instead of open-drain.