TCA965B

Comparators Overview

The TCA965B is a bipolar window discriminator IC in a PG-DIP-14 package. It compares an input voltage against defined limits to indicate if the signal is below, within, or above a specific range. The device supports direct setting of lower and upper edge voltages or indirect setting via center voltage and half-window width. It features adjustable hysteresis and open-collector digital outputs capable of sourcing up to 50 mA. The stabilized reference voltage on pin 10 is internally set to 6 V.

Comparators Feature Summary

• Supports two distinct window configuration methods: direct edge voltage setting and indirect center voltage with half-width adjustment.
• Provides four open-collector logic outputs for flexible interface integration.
• Includes internal inhibit inputs that force specific output states when grounded.
• Features adjustable hysteresis to prevent output oscillation during threshold transitions.

Comparators Applications

• Tracking or compensating controllers with dead bands in control engineering
• Selection of DC voltages within tolerance ranges in measurement engineering
• Schmitt trigger applications requiring switching frequencies up to 50 kHz

Comparators Procurement Notes

Verify component authenticity by checking markings against official Infineon datasheets. Confirm the package type matches the required PCB footprint. Ensure the operating temperature range aligns with system requirements. Check for RoHS compliance status if environmental regulations apply. Validate supply voltage compatibility before integration.

Comparators Selection Notes

Select this component when precise voltage window monitoring is required without external comparator complexity. Consider the open-collector outputs for level shifting capabilities. Evaluate the need for adjustable hysteresis to handle noisy environments. Verify that the bipolar technology meets the speed and power constraints of the design.

Comparators Part Context

This device belongs to the specialty analog circuit family designed for precision voltage monitoring tasks. It serves as a dedicated solution for window detection, eliminating the need for multiple discrete comparators. The integrated reference and amplifier stages simplify circuit design for industrial and automotive applications.

Comparators Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.

Comparators FAQ

How is the window configured indirectly?

Indirect configuration uses the center voltage connected to pin 8 and the half-window width connected to pin 9 to define the upper and lower edges.

What is the function of pins 4 and 12?

Pins 4 and 12 are inhibit inputs. Connecting them to ground forces logic output A or B to a high state, respectively.

Can the TCA965B be used as a Schmitt trigger?

Yes, when used as a Schmitt trigger, the device supports switching frequencies up to a typical value of 50 kHz.