1FEATURES

• Output Stage Consists of Eight Programmable

Half-Bridge MOSFET Drivers (Configurable in

Half, Full, or Parallel Bridges) Which Deliver

Modulated Current to Each Coil

• Linear Mode Output: Generates a Sine Wave

Voltage That is Controlled by the

Microcontroller

• Output Stage is Overload Protected for Short

and Over Temperature

• Driver Control and Diagnosis Blocks Drive the

Gates of the MOSFETS Via Data From the SPI

• Antenna Diagnostics: Short to GND, Short to

VBAT, And Open Load Via Current

Measurement

• Divider Block Generates an Internal Frequency

From the Input Clock (Main Controller); Used

for the Internal Logic

• Sophisticated Failure Detection and Handling

• HTSSOP (PWP) 28-Pin Package

• Operating Temperature Range:

-40°C to +105°C

APPLICATIONS

• Automotive Passive Start and Passive Entry

Applications

DESCRIPTION

The low-frequency (LF) antenna driver is dedicated to automotive applications requiring passive entry or passive

start operational control. It allows for up to eight dedicated drivers, consisting of MOSFET transistors. The device

also incorporates sophisticated diagnosis, protection and monitoring features.