ATA5276 ATMEL Corporation, ATA5276 Datasheet

ATA5276

Manufacturer Part Number

ATA5276

Description

TRANSMITTER IC

Manufacturer

ATMEL Corporation

Datasheet

1.ATA5276.pdf (18 pages)

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Features

•

Applications

•

Benefits

•

1. Description

The ATA5276 is an integrated 1.5A peak current BCDMOS antenna driver IC dedi-

cated as a 125 kHz wake-up channel transmitter for TPM applications.

It includes the full functionality to generate a magnetic LF field in conjunction with an

antenna coil to transmit data and power to a receiver. The transmission can be con-

trolled via a one wire I/O-interface by an external unit.

The smart power IC is delivered in a QFN20 power package with heat slug.

Antenna Driver Stage with Adjustable Antenna Peak Current for up to 1.5A

Frequency Tuning Range from 100 kHz to 150 kHz

Automatic Antenna Peak Current Regulation

Self-tuning Oscillator for Antenna Resonant Frequency Adaptation

Capable of Driving a High-Q Antenna

Integrated 5V Regulator for External Load up to 10 mA

Bi-directional Single Wire Interface for Microcontroller or ECU

LF Baud Rates up to 4 kbaud and Amplitude Shift Keying (ASK) Modulation

Low Power Standby Mode < 50 µA

Antenna Driver Diagnosis: Peak Current, Antenna Frequency and Battery Voltage

Monitoring

Power Supply Range 8V to 24V Direct Battery Input

Load Dump Protection

Operation at Temperature –40°C to +105°C

EMI and ESD According to Automotive Requirements

Highly Integrated, Fewer External Components Required

Overtemperature Protection

Tire Pressure Measurement (TPM)

Wake-Up Systems

Auditing/Tracking Systems

Localization/Security Systems

Self Tuning Capability to Antenna Resonance Frequency

Adjustable Antenna Peak Current Value

Highest Integration Level for Embedded Automotive Systems

Power Saving/Low Current Consumption for Wake-Up Systems

125 kHz

Transmitter IC

for TPM

ATA5276

4909C–AUTO–01/07

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