TLV1812DGKR

Comparators Overview

The TLV1812DGKR is a dual-channel analog comparator from the Texas Instruments TLV181x family, housed in an 8-pin VSSOP package. It features rail-to-rail inputs and push-pull outputs capable of sourcing and sinking milliamps of current. The device operates on a supply voltage range of 2.4V to 40V with a typical quiescent current of 5µA per channel. Key electrical specifications include a maximum input offset voltage of 3mV, a typical propagation delay of 420ns, and an operating temperature range from -40°C to +125°C.

Comparators Feature Summary

• Rail-to-rail input capability extending beyond supply rails for flexible signal interfacing
• Push-pull output stage enabling direct drive of capacitive loads like MOSFET gates without external pull-up resistors
• Integrated Power-On Reset (POR) circuit ensures known output states during power transitions
• Micro-power architecture providing low static current consumption across the full supply voltage range

Comparators Applications

• Appliances
• Factory automation and control
• Motor drives
• Infotainment and cluster systems

Comparators Procurement Notes

Verify the specific ordering suffix DGKR corresponds to the VSSOP-8 package variant when placing orders. Confirm that the component meets all functional safety documentation requirements if utilized in safety-critical designs. Ensure input signals are current-limited to prevent damage to internal ESD clamps during operation.

Comparators Selection Notes

Select this part for applications requiring high-voltage tolerance up to 40V combined with ultra-low power consumption. The push-pull output distinguishes it from open-drain variants, making it suitable for driving LEDs or logic interfaces directly. Consider thermal performance metrics provided in the datasheet for PCB layout optimization under varying ambient temperatures.

Comparators Part Context

This component belongs to the TLV18xx family of micro-power comparators designed for portable, automotive, and industrial environments. The family includes single, dual, and quad-channel options with either push-pull or open-drain configurations. The TLV1812 specifically provides two independent channels within a compact footprint, balancing speed and power efficiency.

Comparators Replacement Considerations

TLV1812DDFR

Comparators FAQ

How does the Power-On Reset feature function?

The internal POR circuit keeps the output in a known state until the minimum supply voltage is reached, preventing false outputs during system power-up and power-down.

What is the recommended handling for unused inputs?

Unused inputs should not be tied together; instead, they must be connected to a valid voltage within the specified input range to prevent high-frequency chatter caused by internal noise.