TLV7044QPWRQ1

Comparators Overview

The TLV7044QPWRQ1 is a quad-channel, low-power analog comparator from Texas Instruments designed for automotive applications. It operates within a supply voltage range of 1.6 V to 6.5 V and consumes a typical quiescent current of 315 nA per channel. The device features rail-to-rail common-mode input voltage capability and an open-drain output stage. Key electrical specifications include a maximum propagation delay of 3 µs, an input offset voltage of ±8 mV, and an input bias current of 2 pA. It is housed in a 14-pin TSSOP package and supports an ambient operating temperature range from -40°C to +125°C.

Comparators Feature Summary

• Qualified for automotive applications with AEC-Q100 Grade 1 certification
• Rail-to-rail input stage allowing operation up to 100 mV beyond the positive supply rail
• Internal power-on-reset circuit ensures a known high-impedance startup condition
• No phase reversal occurs when inputs are overdriven beyond supply rails

Comparators Applications

• Telematics eCall systems
• Automotive head units
• Instrument clusters
• Audio amplifiers
• On-board (OBC) and wireless chargers

Comparators Procurement Notes

Verify that the specific part number matches the required automotive grade and package configuration. Confirm compatibility with the target system's supply voltage limits and ensure proper pull-up resistor selection for the open-drain outputs. Check for functional safety documentation requirements if the application involves safety-critical logic.

Comparators Selection Notes

Select this component for designs requiring ultra-low power consumption alongside fast response times in space-constrained environments. The open-drain output allows the signal to be pulled beyond the VCC supply level, offering flexibility in interfacing with different logic families. Ensure the design accounts for the internal hysteresis characteristics to prevent output oscillation in noisy environments.

Comparators Part Context

This device belongs to the TLV70x-Q1 family of nanopower comparators. It shares architectural similarities with the TLV703x-Q1 but differs in its output stage configuration. While the TLV703x-Q1 utilizes a push-pull output, the TLV704x-Q1 variant employs an open-drain output, enabling external pull-up connections to voltages higher than the internal supply rail.

Comparators Replacement Considerations

TLV7034QPWRQ1

Comparators FAQ

How does the internal power-on-reset function behave during startup?

The internal power-on-reset circuit keeps the output in a high-impedance state while the supply voltage is below the minimum threshold. Once the supply exceeds 1.6 V, the output reflects the differential input state.

What happens if the input voltage exceeds the supply voltage?

The comparator features a rail-to-rail input stage that can operate up to 100 mV beyond the VCC rail without experiencing phase reversal or damage, provided the absolute maximum ratings are not exceeded.