ATA5276M-PGQW Atmel, ATA5276M-PGQW Datasheet

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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 ...

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General Description The ATA5276 is a 125-kHz transmitter IC 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 ...

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Pin Configuration Figure 3-1. Pinning QFN20 Table 3-1. Pin Description (1) Pin Symbol Function 1 DVCC2 Battery supply input 2 DVCC1 Battery supply input 3 DRV3 Antenna driver stage output 4 DRV2 Antenna driver stage output 5 DRV1 Antenna ...

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Functional Description 4.1 Operation Modes There are two different operation modes for the ATA5276: • Standby mode • Transmission mode 4.2 Standby Mode and Wake-up After power-on-reset, the ATA5276 is in standby mode. For minimum power consumption, only the ...

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Figure 4-3. 4.3 Transmission Mode 4.3.1 ASK Modulation For the transmission of a wake-up signal or data to a receiver, the ATA5276 generates a antenna resonance synchronized signal at the antenna driver output (DRV pin). A connected LC antenna radiates ...

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Time Out and Time Out Reset The IC has a time out supervisor for the interface line to avoid unintended continuous transmis- sion in case of line errors. The time out timer runs if the DIO pin is pulled ...

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Figure 4-7. The various failure types are monitored during transmission in time TFDx (see section sis and Protection” on page 4.4 Internal Voltage Regulator and POR The IC contains a 5-V regulator used for the supply voltage V ...

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Resonance Tracking Mode In case the antenna half-bridge is activated the VCO is tracked by the antenna current by means of it zero crossing detection. The VCO runs at the antenna resonance frequency stationary. The clock CLK quality and ...

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Circuit Protection Cases The circuit protection is activated in normal mode, i.e., if the antenna circuit is driven to the oscil- lation with its own frequency switched off in standby mode. Between the end of the transmission ...

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Absolute Maximum Ratings Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions beyond those indicated ...

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Noise and Surge Immunity Parameter Conducted interferences Note: 1. Test pulse 45V smax 9. Electrical Characteristics No. Parameters Test Conditions 1 Power Supply I(VCC mA, 1.1 Main supply voltage including load and line regulation ...

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Electrical Characteristics No. Parameters Test Conditions 3 Antenna Peak Current Control Duty cycle control 3.1 range Peak current control 3.2 reference Peak current control 3 accuracy Antenna peak under 0% NOM value = IA 3.4 current threshold ...

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Electrical Characteristics No. Parameters Test Conditions 6 Transmission Protocol 6.1 LF data baud rate Anti-bouncing time for DIO = H 6.2 activate half-bridge for f Anti-bouncing time for DIO = L 6.3 de-activate half-bridge for f Acknowledge pulse 6.4 ...

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Application Hints A typical application of ATA5276 is shown in antenna current can be estimated by the formula Î Here R resistance in series with the shunt resistance and the internal drain-source-on-resistance of the ...

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VBATT 24V + GND DVCC2 DVCC1 2 DRV3 C ANT DRV2 LF Receiver L ANT DRV1 SHUNT Note: For the typical values of the external components, see table "External Components" on page 13. ...

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... Ordering Information Extended Type Number ATA5276M-PGQW ATA5276M-PGPW 13. Package Information ATA5276 16 Package Remarks QFN20 Pb-free, Taped and reeled QFN20 Pb-free, Taped and reeled Minimum Order Quantitiy 6,000 1,500 4909C–AUTO–01/07 ...

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Revision History Please note that the following page numbers referred to in this section refer to the specific revision mentioned, not to this document. Revision No. 4909C-AUTO-01/07 4909C–AUTO–01/07 History Put datasheet in a new template All pages: Preliminary deleted ...

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... Disclaimer: The information in this document is provided in connection with Atmel products. No license, express or implied, by estoppel or otherwise, to any intellectual property right is granted by this document or in connection with the sale of Atmel products. EXCEPT AS SET FORTH IN ATMEL’S TERMS AND CONDI- TIONS OF SALE LOCATED ON ATMEL’S WEB SITE, ATMEL ASSUMES NO LIABILITY WHATSOEVER AND DISCLAIMS ANY EXPRESS, IMPLIED OR STATUTORY WARRANTY RELATING TO ITS PRODUCTS INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT ...