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ATA5294
  • ATA5294

ATA5294

In Production

An LF antenna driver device for passive entry/go (PEG) systems. It can drive up to four 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 1.25A (independent of battery voltage) and adjustable in 79 steps.NOTE: The following Application Notes are CONFIDENTIAL but can be shared under NDA. Please contact sales to request your copy.ATA5293/4/6 Multiple Driver OperationATA5293/4/6 Thermal Model Parameters and ConsiderationsATA5293/4/6 Booster ConsiderationsATA5293/ATA5294/ATA5296 FDX Multiple Antenna Immobilizer Operation...

Microchip Technology ATA5294 Product Info

16 April 2026 3

Parameters

Automotive Qualified

Yes

Coil Current (A) p-p

2.5

Coil Drivers

4

Operating Voltage (V) Min

4

Operating Voltage (V) Max

28

Temperature Range (°C) Max

125

Temperature Range (°C) Min

-40

Packages

48VQFN

Features

  • Integrated PEPS driver and transponder immobilizer base station
  • Internal precision oscillator for carrier generation
  • Data transmission and control buffers
  • IC power supply voltage from 4 V to 28 V for immobilizer operation
  • Fast SPI interface (2 Mbit/s) for data access and configuration
  • Data transmission and control buffers
  • Flexible GPIO pins (4) for control of peripherals independent of host
  • Very low power-down current consumption
  • QFN 7x7-48 with wettable flanks
  • LF carrier frequency 125 kHz
  • Internal 24 MHz XTAL oscillator available for higher accuracy
  • IC power supply voltage from 6 V to 28 V for PEPS operation
  • Transparent data input and data output pins

    • Description

    An LF antenna driver device for passive entry/go (PEG) systems. It can drive up to four 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 1.25A (independent of battery voltage) and adjustable in 79 steps.

    NOTE: The following Application Notes are CONFIDENTIAL but can be shared under NDA. Please contact sales to request your copy.

    • ATA5293/4/6 Multiple Driver Operation
    • ATA5293/4/6 Thermal Model Parameters and Considerations
    • ATA5293/4/6 Booster Considerations
    • ATA5293/ATA5294/ATA5296 FDX Multiple Antenna Immobilizer Operation

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