TLV1822QDGKRQ1

Comparators Overview

The TLV1822QDGKRQ1 is an automotive-grade dual-channel analog comparator from Texas Instruments, featuring open-drain outputs and rail-to-rail inputs. It operates within a supply voltage range of 2.4 V to 40 V with a quiescent current of 5 μA per channel. The device includes a Power-On Reset (POR) circuit for known start-up states and offers low input offset voltage of 500 μV. It has a typical propagation delay of 420 ns and is housed in an 8-pin VSSOP package.

Comparators Feature Summary

• Qualified for automotive applications with AEC-Q100 Grade 1 certification
• Features open-drain output stage capable of pulling up to 40 V independent of supply voltage
• Includes internal Power-On Reset (POR) to ensure known output state during power transitions
• Supports rail-to-rail input voltage range extending beyond supply rails

Comparators Applications

• HEV/EV and power train systems
• Infotainment and cluster modules
• Body control module circuits

Comparators Procurement Notes

Verify the specific ordering suffix DGKRQ1 corresponds to the VSSOP-8 package and tape-and-reel delivery format. Confirm that the Q1 designation ensures compliance with AEC-Q100 reliability standards for automotive environments. Check for functional safety documentation availability if required for system design integration.

Comparators Selection Notes

Select this component when high-voltage tolerance up to 40 V is required alongside ultra-low power consumption. The open-drain output is suitable for logic level translation or wired-OR configurations. Ensure the application benefits from the integrated POR feature to manage power-up sequences without external components.

Comparators Part Context

This part belongs to the TLV18xx-Q1 family of micro-power comparators. It shares core specifications with the push-pull TLV181x-Q1 variant but utilizes an open-drain output structure. The family is designed for automotive and industrial applications requiring robust operation across wide temperature ranges and supply voltages.

Comparators Replacement Considerations

Direct pin-compatible replacements within the same family include other TLV1822-Q1 variants with different packages such as SOIC-8 (TLV1822DRQ1) or TSSOP-8 (TLV1822PWRQ1). Verify that any substitute maintains the open-drain output configuration and AEC-Q100 qualification.