TCA355GHLLA1

Overview

The TCA355GHLLA1 is a bipolar integrated circuit designed for inductive proximity switch applications, housed in an 8-pin PG-DSO-8-1 surface-mount package. It operates within a supply voltage range of 5 V to 30 V and supports ambient temperatures from -25 °C to 85 °C. The device features low open-loop current consumption (IS < 1 mA) and lower output saturation voltage. Key electrical parameters include a reference voltage of 3.2 V, an L-output voltage of 0.04 V at 5 mA load, and an H-output current of 10 μA. The switching hysteresis is typically 0.5 V with a tolerance of ±0.1 V.

Feature Summary

• Integrated oscillator and logic functions for designing inductive proximity switches
• Constant switching hysteresis regardless of temperature or supply voltage variations
• Temporarily short-circuit proof outputs with automatic disable during low voltage conditions

Applications

• Inductive proximity switches
• Metal detection systems
• Position sensing in industrial automation

Procurement Notes

Verify the component status as Not for new design before procurement. Confirm the specific ordering code Q67000-A2444 matches the required PG-DSO-8-1 package. Ensure compatibility with existing designs due to potential obsolescence constraints.

Selection Notes

Select this IC when designing flush-mounted inductive sensors requiring stable hysteresis and low power consumption. Consider the external components for resonant circuit damping and temperature compensation. Verify that the operating voltage remains above 5 V for standard functionality.

Part Context

Part of the TCA 305/355 family developed from the TCA 205. Designed specifically for inductive proximity switch applications using standard metal plates for detection. Offers improved sensitivity allowing for larger switching distances and lower quality coils.

Replacement Considerations

TCA355GXLLA1 is a similar active part in the same package family.