LT6703HDC-3#TRMPBF

Overview

The LT6703HDC-3#TRMPBF is a micropower, low voltage comparator featuring an internal 400mV reference. It operates on a single supply from 1.4V to 18V with a typical quiescent current of 6.5μA at 5V. The device utilizes a noninverting input configuration and provides an open-collector output capable of sinking over 5mA. It includes built-in hysteresis for stable operation and supports Over-The-Top inputs up to 36V. Packaged in a 2mm × 2mm DFN, it functions within a temperature range of –40°C to 125°C.

Feature Summary

• Integrates a precise 400mV internal reference with total threshold error of ±1.25% maximum at 25°C.
• Features Over-The-Top input capability allowing external signals up to 36V independent of the supply voltage.
• Includes internal hysteresis to ensure noise immunity and stable switching without external components.
• Open-collector output stage allows flexible level translation and wire-AND logic implementation.

Applications

• Battery-powered system monitoring
• Threshold detectors and window comparators
• Relay driving circuits
• Industrial control systems
• Automotive monitor and controls

Procurement Notes

Verify the specific suffix TRMPBF indicates tape and reel packaging containing 500 pieces. Confirm the H grade corresponds to the extended industrial/automotive temperature range of –40°C to 125°C. Ensure the DC package matches the required 2mm × 2mm footprint. Check for lead-free compliance status as specified in the ordering information table.

Selection Notes

Select this part when a fixed 400mV threshold is required for low-voltage signal detection. The noninverting polarity (suffix -3) is necessary if the output should switch high when the input exceeds the reference. Consider the HV variants if input voltages exceed 18V relative to ground. Verify that the open-collector output interface is compatible with the downstream logic levels.

Part Context

This component belongs to the LT6703 family of micropower comparators. It shares architectural similarities with the LT6703-2 but differs in input polarity. Related parts include the LT6700 dual comparator and the LT1017. The device is designed for applications requiring minimal power consumption while maintaining accuracy in battery-operated environments.

Replacement Considerations

LT6703HDC-3#PBF offers the same electrical specifications in a bulk tube package instead of tape and reel. LT6703IDC-3#TRMPBF provides identical functionality within the industrial temperature range of –40°C to 85°C. Substitutes must match the noninverting input configuration and the 400mV reference threshold.