ATA5743P3-TGSY Overview
The ATA5743P3-TGSY is an advanced automotive transponder IC designed for secure and efficient vehicle immobilizer systems. This device integrates a robust 125 kHz carrier frequency interface with a high-security crypto engine, ensuring reliable authentication and anti-theft protection. With its low power consumption and compact HVQFN packaging, it caters to stringent automotive requirements. Ideal for OEMs and system integrators, the ATA5743P3-TGSY combines versatility with high performance to support modern immobilizer designs. For detailed technical support and procurement, visit IC Manufacturer.
ATA5743P3-TGSY Technical Specifications
| Parameter | Specification |
|---|---|
| Operating Frequency | 125 kHz (LF carrier) |
| Supply Voltage Range | 3.0 V to 5.5 V |
| Power Consumption (Standby) | Typ. 10 ??A |
| Operating Temperature Range | -40??C to +125??C |
| Crypto Engine | 128-bit AES-based authentication |
| Communication Interface | LF ASK/OOK Modulation |
| Package Type | 32-pin HVQFN (5×5 mm) |
| Memory Capacity | EEPROM: 512 bytes |
| Data Rates | Up to 4 kbps |
ATA5743P3-TGSY Key Features
- Secure Authentication: Incorporates a 128-bit AES crypto engine, providing robust protection against cloning and unauthorized access.
- Low-Frequency Communication: Supports 125 kHz LF ASK/OOK modulation, ensuring compatibility with standard automotive immobilizer readers.
- Low Power Consumption: Consumes typically 10 ??A in standby mode, extending battery life in key fob applications.
- Wide Operating Temperature: Maintains reliable performance from -40??C to +125??C, suitable for harsh automotive environments.
- Compact Package: The 32-pin HVQFN package offers easy integration in space-constrained designs.
- Flexible Memory: Equipped with 512 bytes of EEPROM for user data storage and configuration options.
- Fast Data Transmission: Supports data rates up to 4 kbps, providing efficient communication during authentication cycles.
ATA5743P3-TGSY Advantages vs Typical Alternatives
This transponder IC excels over typical alternatives by combining high-security AES-based authentication with low-frequency communication, ensuring enhanced protection against vehicle theft. Its low power consumption and broad temperature range improve reliability and longevity in automotive conditions. The compact HVQFN package simplifies integration, making it a superior choice for OEMs seeking efficient, secure immobilizer solutions.
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Typical Applications
- Automotive immobilizer systems requiring secure key authentication with low-frequency transponder technology, ensuring reliable vehicle access control in diverse environments.
- Keyless entry systems where secure communication between the key fob and vehicle is essential for preventing unauthorized access.
- Fleet management devices integrating secure identification to control vehicle usage and enhance security protocols.
- Aftermarket vehicle security upgrades leveraging robust cryptographic authentication to enhance anti-theft measures.
ATA5743P3-TGSY Brand Info
The ATA5743P3-TGSY is a product from a leading semiconductor supplier specializing in automotive security ICs. Designed to meet rigorous automotive standards, this device offers advanced cryptographic functionality combined with reliable low-frequency transponder communication. It supports automotive manufacturers and system integrators in developing state-of-the-art immobilizer solutions that comply with industry security requirements. The product??s quality and performance are backed by extensive automotive-grade testing and long-term supply assurance.
FAQ
What type of cryptographic security does this transponder IC provide?
The device features a 128-bit AES-based crypto engine that ensures secure authentication between the transponder and the vehicle??s immobilizer system. This advanced encryption protects against cloning and unauthorized access attempts, making it highly suitable for automotive security applications.
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What communication protocols are supported for data exchange?
This IC supports low-frequency (125 kHz) ASK and OOK modulation schemes. These standard automotive communication protocols enable seamless interaction with immobilizer readers and keyless entry systems, ensuring compatibility with existing infrastructures.
What are the power consumption characteristics of this component?
The ATA5743P3-TGSY operates with very low power consumption, typically around 10 ??A in standby mode. This low power usage helps prolong battery life in key fobs and other automotive security devices, contributing to maintenance-free operation over extended periods.
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How does the operating temperature range affect its automotive use?
Its wide operating temperature range from -40??C to +125??C ensures that the device maintains reliable performance even in extreme environmental conditions commonly encountered in automotive applications, such as cold starts or high engine compartment temperatures.
What packaging options are available, and how do they impact integration?
The product comes in a compact 32-pin HVQFN package measuring 5×5 mm. This small footprint allows for easy integration into space-constrained automotive designs, facilitating streamlined assembly processes and reducing overall system size.






