Microchip Technology Inc

ATA5291

In Production

An LF antenna driver device for passive entry/go (PEG) systems. It can drive up to eight low-frequency antennas (coils) to provide a wake-up and initialization channel to the key fob. Each driver is programmable up to a peak current of 1A (independent of battery voltage) and adjustable in 18 steps.

 

    Features

        • Integrated PEPS driver and transponder immobilizer base station
        • Internal precision oscillator for carrier generation
        • IC power supply voltage from 6V to 28V for PEPS operation
        • IC power supply voltage from 4V to 28V for immobilizer operation
        • Fast SPI interface (2Mbit/s) for data access and configuration
        • Transparent data input and data output pinsData transmission and control buffers
        • Flexible commands set with LOOP and CALL capability allowing for programmable polling mode without the need to re-load the data buffer. This mode does not require any host controller interaction.
        • Flexible GPIO pin for control of peripherals independent of host
        • Very low power-down current consumption
        • QFN 7x7-48 with wettable flanks
        • LF carrier frequency 125kHz
    Parameter Name
    Value
    Automotive Capable
    Yes
    Documentation
    Data Sheets
    12/10/2016
    192KB
      Brochures
     
     
     
    Brochures
    08/01/2015
    3116KB
    Brochures
    11/01/2013
    5255KB
    Brochures
    01/01/2013
    390KB
      Quick Start Guides
     
     
     
    Quick Start Guides
    10/01/2010
    1399KB
    Quick Start Guides
    10/01/2010
    1096KB
    Quick Start Guides
    10/01/2013
    343KB
    Quick Start Guides
    10/01/2012
    1358KB
    Quick Start Guides
    10/01/2013
    334KB
    Quick Start Guides
    10/01/2013
    542KB