ATA5276M-PGPW 19

ATA5276M-PGPW 19 Datasheet


ATA5276

Part Datasheet
ATA5276M-PGPW 19 ATA5276M-PGPW 19 ATA5276M-PGPW 19 (pdf)
Related Parts Information
ATA5276M-PGQW 19 ATA5276M-PGQW 19 ATA5276M-PGQW 19
ATA5276M-PGQW 19 ATA5276M-PGQW 19 ATA5276M-PGQW 19
ATA5276-PGPW ATA5276-PGPW ATA5276-PGPW
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• 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 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
• 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

The ATA5276 is an integrated 1.5A peak current BCDMOS antenna driver IC dedicated 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 controlled 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.

The ATA5276 is a 125-kHz transmitter IC. It is dedicated to driving 125 kHz LC antenna tanks, for the wake-up channel in Tire Pressure Measurement TPM applications or various power saving Industrial wake-up applications..

It includes a control logic with VCO which generates the 125 kHz signal for the output driver stage. A phase lock circuit regulates the driver output frequency on the antenna resonance frequency, achieving a maximum field strength on the antenna. The driver duty cycle is regulated and stabilizes the antenna current for a wide supply voltage range.

The IC can be controlled by a microcontroller or ECU via the one wire bi-directional interface. It is used for the data transmission and to indicate errors. For the data transmission ASK modulation is used. The antenna signal is modulated by the DIO interface line.

The IC has a build in diagnosis function and detects detuning and broken or short wire of the antenna circuitry. If a failure is detected the IC indicates it by an error signal via the DIO line.

The integrated 5V regulator can be used externally for a load up to 10 mA.

Figure Block Diagram

DVCC3

BOOST

VDIO

DVCC2
2 DVCC1
3 DRV3
4 DRV2
5 DRV1

Half Bridge Gate Drive Control

XOR State Machine
5V REG

BIAS

ATA5276
125-kHz Transmitter

Line
14 TM2
13 TM3
12 RCR
11 REXT
6 DVSS3
7 DVSS2
8 DVSS1
9 SENSE
10 VSS
2 ATA5276

Pin Configuration
Ordering Information

Extended Type Number ATA5276M-PGQW ATA5276M-PGPW

Package QFN20, 5 mm x 5 mm QFN20, 5 mm x 5 mm

Remarks Pb-free, Taped and reeled Pb-free, Taped and reeled

Minimum Order Quantitiy 6,000 1,500

Package Information
16 ATA5276

ATA5276

History
4909C-AUTO-01/07
• Put datasheet in a new template
• All pages Preliminary deleted
• Page 1 Application new bullets added
• Page 1 Benefits new bullet added
• Page 2 General Description text changed
• Page 8 Coil Driver Output... last paragrah changed
• Page 10 Abs.Max.Rat. Table Minimum ESD protection rows changed
• Page 15 Application Ciruit drawing changed
• Page 16 Ordering Information Table changed

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Datasheet ID: ATA5276M-PGPW 19 519166