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ATA5276 Datasheet, PDF (1/18 Pages) ATMEL Corporation – 125 kHz Transmitter IC for TPM | |||
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Features
⢠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 â40°C to +105°C
⢠EMI and ESD According to Automotive Requirements
⢠Highly Integrated, Fewer External Components Required
⢠Overtemperature Protection
125 kHz
Transmitter IC
for TPM
ATA5276
Applications
⢠Tire Pressure Measurement (TPM)
⢠Wake-Up Systems
⢠Auditing/Tracking Systems
⢠Localization/Security Systems
Benefits
⢠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
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.
4909CâAUTOâ01/07
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