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Infineon Technologies TCA355GGEGXUMA1
- Part No.:
- TCA355GGEGXUMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Sensor, Capacitive Touch
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TCA355GGEGXUMA1.pdf
- Description:
- IC PROXIMITY SWITCH 8DSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,215
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Product details
Overview
TCA355GGEGXUMA1 from Infineon Technologies is a bipolar monolithic integrated circuit designed as a proximity switch controller for inductive sensors, featuring open-loop current consumption < 0.9 mA, output saturation voltage < 0.22 V at 50 mA, and operating supply range 5–30 V. It integrates oscillator, comparator, and dual complementary outputs (Q and Q̄) to drive external transistor stages in flush- or non-flush-mounted metal-detection applications.
For engineers reviewing the TCA355GGEGXUMA1 datasheet, TCA355GGEGXUMA1 pinout, TCA355GGEGXUMA1 application, or TCA355GGEGXUMA1 equivalent, key selection criteria include turn-on delay programmability via external RC, temperature-stable hysteresis (±0.4 V), fixed 0.015–1.5 MHz oscillator frequency range, and short-circuit proof outputs rated for up to 60 s at 50 mA.
Technical Context
The TCA355GGEGXUMA1 implements an internal LC oscillator whose frequency determines switching sensitivity and distance; damping by approaching metal shifts oscillation amplitude to trigger complementary digital outputs. Its dual-output architecture (Q and Q̄) enables direct drive of NPN/PNP transistor pairs without external logic inversion.
Turn-on delay is externally adjustable via resistor between Pin 7 and VS, enabling suppression of false triggers during power-up; the device disables outputs below ~4.5 V supply and requires ≥5 V for stable oscillator operation and internal reference regulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage | 5–30 V - supports wide industrial rail; operation down to ~2.5 V possible with VREF tied to VS (no internal regulation) |
| Oscillator frequency | 0.015–1.5 MHz - sets resonant coil tuning range and maximum detectable switching distance |
| Open-loop current | 0.6–0.9 mA - enables low-power standby in battery-backed or energy-constrained proximity systems |
| L-output saturation | 0.10 V @ 25 mA - ensures minimal voltage drop across external driver transistors, reducing heat dissipation |
| Hysteresis voltage | 0.4–0.6 V - maintains consistent switching threshold across –25 °C to +85 °C ambient and supply variations |
| Turn-on delay | 600 ms/µF - configurable via external capacitor on Pin 7 to suppress transient-induced false triggers |
| Short-circuit tolerance | ~60 s @ 50 mA - protects output stage during coil short or mechanical jam without latch-up |
Pinout & Package
Package: PG-DSO-8-1 (8-pin SOIC, surface-mount, RoHS-compliant lead plating).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VS) | Positive supply input | Must be ≥5 V for internal reference stabilization; outputs disabled below ~4.5 V |
| 2 (Q) | Active-low output | Complementary to Q̄; sinks up to 50 mA; short-circuit protected for ~60 s |
| 3 (CI) | Integrating capacitance node | Accepts 1 nF capacitor (or RC network) to improve noise immunity in EMI-prone environments |
| 4 (GND) | Ground reference | Common return for supply, oscillator, and output stages; must be low-impedance |
| 5 (Q̄) | Active-high output | Complementary to Q; sources current when Q is low; same short-circuit rating |
| 6 (RHy) | Hysteresis adjustment | Connects to external resistor (typ. 0 Ω) to set hysteresis width independent of temperature |
| 7 (DD) | Turn-on delay control | Resistor to VS sets charge time constant; open = no delay; 390 kΩ ≈ 100 ms delay |
| 8 (RDi) | Distance adjustment | External resistor sets baseline switching distance; higher RDi increases sensitivity |
Key Features
| Feature | Design Value |
|---|---|
| Temperature-stable hysteresis | Hysteresis remains constant across –25 °C to +85 °C and supply voltage variation, eliminating recalibration in thermal cycling environments |
| Programmable turn-on delay | Delay time set via external resistor on Pin 7, preventing false triggering during system power-up or voltage ramp |
| No external integrating capacitor required | Functional without CI (Pin 3); optional 1 nF cap or RC network adds robustness against RF interference and EFT bursts |
| Low saturation voltage outputs | VQ(L) ≤ 0.22 V @ 50 mA reduces conduction loss and thermal stress in discrete output transistor stages |
| Integrated oscillator compensation | Internal TC compensation simplifies resonant circuit design; external diode D optional based on coil temperature coefficient |
Applications
| Industrial Proximity Sensors | Automotive Gear Position Detection |
|---|---|
Use Scenario: Flush-mounted metal detection in CNC machine tool limit switches and conveyor belt object presence monitoring. IC Role / Device Role / Timing Role: Proximity switch controller generating complementary Q/Q̄ outputs to drive external NPN/PNP transistor pair controlling relay or PLC input. Use Value: Stable 0.4–0.6 V hysteresis ensures repeatable switching distance over –25 °C to +85 °C, eliminating drift-related false trips. | Use Scenario: Non-contact gear tooth sensing in transmission shift position feedback systems. IC Role / Device Role / Timing Role: Oscillator-based inductive front-end converting gear rotation into clean digital edge transitions for microcontroller capture input. Use Value: 0.015–1.5 MHz oscillator tunability allows optimization for small-pitch gears (e.g., M12 cores), improving resolution vs. fixed-frequency alternatives. |
| Factory Automation Safety Gates | Material Handling Forklift Obstacle Detection |
Use Scenario: Guard door interlock using non-flush inductive sensor detecting ferrous strike plate alignment. IC Role / Device Role / Timing Role: Dual-output controller providing redundant Q/Q̄ signals to safety-rated logic for cross-checking integrity. Use Value: Short-circuit proof outputs (60 s @ 50 mA) prevent latch-up during mechanical misalignment or coil abrasion, supporting functional safety compliance. | Use Scenario: Front bumper obstacle detection using embedded coil in forklift chassis. IC Role / Device Role / Timing Role: Low-current proximity controller (0.9 mA IS) minimizing parasitic drain on 12 V vehicle battery during idle periods. Use Value: Sub-1 mA open-loop current extends battery life in intermittent-use mobile equipment without compromising detection range. |
Availability
TCA355GGEGXUMA1 is available at Aetrix Electronics and suitable for industrial proximity sensors, automotive gear position detection, and factory automation safety gates requiring stable component supply and long-term production continuity.
Supply support for TCA355GGEGXUMA1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Infineon Technologies is a German semiconductor manufacturer specializing in power management, sensor signal conditioning, and industrial control ICs, with global manufacturing and quality certification to ISO/TS 16949 and IATF 16949.
The TCA series targets inductive proximity switching applications, delivering integrated oscillator, comparator, and dual-output stages optimized for reliability, temperature stability, and ease of resonant circuit compensation in harsh industrial environments.
FAQ
What is the minimum supply voltage for stable operation of TCA355GGEGXUMA1?
The TCA355GGEGXUMA1 requires ≥5 V for full functionality including internal reference regulation and oscillator stabilization. Operation between ~2.5 V and 5 V is possible only if VREF is externally tied to VS, disabling internal regulation but retaining basic switching behavior.
Can TCA355GGEGXUMA1 drive a relay directly?
No - its outputs are rated for 50 mA sink/source and are intended to drive external NPN/PNP transistor stages or logic-level MOSFETs. Direct relay driving exceeds safe current limits and risks damaging the IC's output transistors under inductive kickback.
How does the turn-on delay function work on Pin 7 (DD)?
Pin 7 accepts an external resistor to VS to set the charge time constant of an internal capacitor. With no resistor (open), delay is disabled. A 390 kΩ resistor yields ~100 ms delay; larger values increase delay linearly, suppressing false triggers during power-up transients.
Is TCA355GGEGXUMA1 pin-compatible with TCA305G?
No - TCA355GGEGXUMA1 uses PG-DSO-8-1 (8-pin), while TCA305G uses PG-DSO-14-1 or PG-DIP-14-1 (14-pin). Though functionally similar, pin count, layout, and terminal assignments differ; PCB redesign is required for substitution.
TCA355GGEGXUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Proximity Only
- Proximity Detection:
- Yes
- Number of Inputs:
- 1
- LED Driver Channels:
- -
- Interface:
- -
- Resolution:
- -
- Voltage - Supply:
- 5V ~ 30V
- Current - Supply:
- 600µA
- Operating Temperature:
- -25°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-DSO-8
TCA355GGEGXUMA1 FAQ
1.How can I place an order for TCA355GGEGXUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TCA355GGEGXUMA1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TCA355GGEGXUMA1 reliable?
The price and inventory of TCA355GGEGXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TCA355GGEGXUMA1 is usually 5 days.
3.What payment methods are accepted for TCA355GGEGXUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TCA355GGEGXUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TCA355GGEGXUMA1?
TCA355GGEGXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TCA355GGEGXUMA1 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TCA355GGEGXUMA1?
For technical support, including TCA355GGEGXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TCA355GGEGXUMA1 requirements.
6.How does Aetrix verify that TCA355GGEGXUMA1 is sourced from the original manufacturer or authorized distributors?
All TCA355GGEGXUMA1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TCA355GGEGXUMA1 meets industry standards.
7.What is the process for return or replacement of TCA355GGEGXUMA1?
All TCA355GGEGXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TCA355GGEGXUMA1, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TCA355GGEGXUMA1 part is unused and in its original packaging.
Return procedure for TCA355GGEGXUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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