TCA305GGEGXUMA1

Overview

The TCA305GGEGXUMA1 is a bipolar integrated circuit designed for inductive proximity switch applications, manufactured by Infineon Technologies. It operates within a supply voltage range of 5 V to 30 V and supports an ambient temperature range of -25 °C to 85 °C. The device features an open-loop current consumption of less than 1 mA and includes logic functions with damped and non-damped outputs. Key electrical parameters include a reference voltage of 3.2 V, an L-output saturation voltage of up to 0.35 V at 25 mA, and an H-output current limit of 10 μA. The component utilizes a PG-DSO-14-1 surface-mount package.

Feature Summary

• Lower open-loop current consumption and output saturation voltage
• Higher sensitivity enabling larger switching distances and use of lower quality coils
• Constant switching hysteresis regardless of temperature, supply voltage, or switching distance
• Temporary short-circuit proof outputs with automatic disabling below approximately 4.5 V

Applications

• Inductive proximity switches
• Metal detection systems using standard metal plates
• Automotive sensing interfaces

Procurement Notes

Verify the specific ordering code Q67000-A2305 against the required package type PG-DSO-14-1. Confirm RoHS compliance and Pb-free lead plating status. Check for any design-in restrictions as the family may be marked not for new designs. Ensure supply voltage requirements align with the 5 V to 30 V operating range.

Selection Notes

Select this component when designing inductive proximity switches requiring low power consumption and high sensitivity. Consider the TCA305 variant if external integrating capacitors are undesirable, or the TCA355 variant for different thermal characteristics. Evaluate the need for external RC combinations to achieve desired noise immunity levels.

Part Context

This part belongs to the TCA 305/355 family of bipolar ICs developed from the TCA 205 series. It is intended for applications where resonant circuit damping controls output switching. The device integrates oscillator, logic, and output stages necessary for proximity sensing without external discrete components for basic operation.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.