Atmel ATA6264 - Manual

Features
• Maximum Supply Voltage 40V
• One Programmable/Adjustable Boost Converter
• Two Programmable Buck Converters
• One Programmable Linear Regulator
• OTP Customer Mode
• 16-bit Serial Interface
• Two ISO9141 Interfaces (One Interface Programmable to LIN Functionality)
• Watchdog
• Various Diagnosis Functions
• 5 Voltage Sources Tailored to Resistor Measurement
• Charge Pump
• Small, 44-pin Package
• ESD Protection Against 2kV and 4kV
1. Description
With the introduction of the ATA6264, Atmel ® introduces a new generation of airbag
power supplies for future airbag systems tailored to the needs of the automotive
industry. It is designed in Atmel’s 0.8 micron BCDMOS technology. ATA6264 contains
all the necessary blocks to supply the microcontroller, the firing capacitors, and
peripheral components of the airbag system. The power supply specifically fulfills the
power requirements of dual-voltage microcontrollers used in modern ECUs. The inte-
grated watchdog and diagnosis blocks additionally support the safety aspects. The
8-MHz 16-bit SPI enables a high communication speed. Despite the high-level func-
tionality, ATA6264 comes in a space-saving QFP44 package.
Airbag Power
Supply IC
ATA6264
Preliminary
4929B–AUTO–01/07