TDA8025HN/C1,518

Specialized Overview

The TDA8025HN/C1,518 is an analog interface IC for asynchronous smart cards supporting 3 V, 1.8 V, and optional 1.2 V supplies. It integrates supply regulation, protection, and control functions using minimal external components. The device features three protected half-duplex bidirectional buffered I/O lines (C4, C7, C8) and handles current pulses of up to 40 nAs at 3 V or 15 nAs at 1.8 V/1.2 V up to 20 MHz. It includes thermal and short-circuit protection, enhanced ESD protection exceeding 6 kV, and clock generation capabilities up to 20 MHz via internal oscillator or external crystal.

Specialized Feature Summary

• Integrated circuit smart card interface with low power consumption in inactive mode
• Three protected, half duplex, bidirectional buffered input/output lines
• Automatic activation and deactivation sequences triggered by short-circuit, card take-off, overheating, and voltage drops
• Enhanced card-side ElectroStatic Discharge (ESD) protection

Specialized Applications

• Pay TV systems
• Electronic payment terminals
• Identification devices
• Bank card readers

Specialized Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and environmental compliance status. Ensure that the CONFIG pin configuration matches the required supply voltage strategy for the target application design.

Specialized Selection Notes

Select this component when designing interfaces for asynchronous smart cards requiring integrated voltage regulation and protection. Consider the HVQFN32 package constraints and ensure adequate decoupling capacitors are placed near the VCC and CGND pins to maintain stability under high current pulse conditions.

Specialized Part Context

This part belongs to the TDA8025 series of IC card interfaces manufactured by NXP Semiconductors. It is designed as a cost-effective solution for managing smart card connections in embedded systems, providing necessary signal conditioning and power management within a compact footprint.

Specialized Replacement Considerations

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