Atmel Automotive Solutions for Body and Convenience Applications

The Atmel Sun Roof Control subsystem consists of an Atmel MCU, a motor driver SBC (system basis chip), a LIN communication bus transceiver, and an integrated voltage regulator. The LIN transceiver can either be a standalone device or Atmel can integrate it into the MCU or motor driver as a SiP (system in package). The external inputs for switch control can be standard mechanical switches or buttons. An alternate solution would be to replace the mechanical switches with Atmel QTouch capacitive touch sensors. In doing so, the designer will reduce the BOM (bill of material) cost. The Atmel QTouch libraries and drivers are available at no cost to the developer as long as an Atmel MCU is used in the design as the touch controller.

Block Diagram

Sun Roof Controls Diagram


Features and Benefits

High Voltage Drivers

  • Rugged design — Atmel's unique BCD-on-SOI (bipolar, CMOS, DMOS on silicon-on-insulator) architecture combines high-voltage capability with the benefits of rugged SOI technology. It provides junction temperature up to 200°C, excellent radiation hardness, very low leakage currents, low parasitics, high switching frequency, and latch-up immunity.
  • Cost-effective ICs — Atmel driver ICs require few external components because LIN connectivity and diagnostics are built in. These embedded functions save you integration and troubleshooting time and lower the cost of goods.
  • Built-in protection — All Atmel drivers share the same protective features—over-temperature warning and switch-off, as well as under-voltage, over-current, short-circuit and open-load detection.
  • Extensive technical support — Demonstration and evaluation kits, detailed documentation and reference designs, and experienced help from Atmel application engineers get you started designing quickly and to market faster.

Touch

  • Developer's choice — QTouch Library can be used to develop single-chip solutions for many control applications, or to reduce chip count in more complex applications.
  • Multitude of combinations — Developers have the latitude to implement buttons, sliders, and wheels (BSW) in a variety of combinations on a single interface.
  • Broad controller support — QTouch Library supports Atmel | SMART ARM-bases MCUs, as well as the tinyAVR®, megaAVR®, XMEGA™, and 32-bit AVR UC3C.
  • Numerous channels — The chip supports up to 64 sense channels for maximum interface sensitivity. 256-level sliders and wheels require only three channels.
  • Three acquisition methods — The QTouch Library supports three patented capacitive touch acquisition methods: QTouchQTouchADC and QMatrix®.
  • Precise operation — Atmel Adjacent Key Suppression® (AKS®) technology enables unambiguous detection of button touches for maximum precision.
  • Prevent bounce — Full debouncing reports for touch buttons helps ensure single, clean contacts.
  • Common API — A common API across all library versions simplifies development.

LIN

  • Broad portfolio — The Atmel portfolio starts with simple LIN Transceivers and progresses up to highly integrated System in Packages (SiPs) ensure that you can select the correct IC for your application.
  • Superior performance — All parts are based on the Atmel LIN IP, that delivers excellent electromagnetic interference (EMI) and electrostatic discharge (ESD) performance.
  • Maximum integration — The Atmel innovative mixed-signal BCD-on-SOI (bipolar, CMOS, DMOS on silicon-on-insulator) technology, called SMART-I.S™, is used for many body electronics and powertrain devices. It enables high integration, extended EMC performance, and high-temperature capability.

Atmel Products

High Voltage DriversDescription
ATA6823CH-Bridge Gate-Driver with LIN Transceiver 2.0
ATA6843BLDC Motor Driver and LIN System Basis Chip with Tjunction up to 150°C
Automotive MCUsDescription
AT90CAN32 Automotive8-bit Automotive AVR Microcontroller, 32KB ISP Flash, CAN Controller
AT90CAN64 Automotive8-bit Automotive AVR Microcontroller, 64KB ISP Flash, CAN Controller
AT90CAN128 Automotive8-bit AVR Microcontroller, 128KB ISP Flash, CAN Controller
ATmega32C1 AutomotiveATmega C1 Series 32KB Flash
ATmega32M1 AutomotiveATmega M1 Series 32KB Flash, PSC
ATmega48 Automotive8-bit AVR Microcontroller, 4KB Flash, 28/32-pin
ATmega64C1 AutomotiveATmega C1 Series 64KB Flash
ATmega64M1 AutomotiveATmega M1 Series 64KB Flash, PSC
ATmega88PA Automotive8-bit picoPower AVR Microcontroller, 8KB Flash, 28/32-pin
ATmega164P Automotive8-bit Automotive AVR Microcontroller, 16KB ISP Flash
ATtiny87 Automotive8-bit Automotive AVR Microcontroller, 8KB ISP Flash, LIN Controller
ATtiny88 Automotive8-bit Automotive AVR Microcontroller, 8KB ISP Flash, 32 Pins
ATtiny167 Automotive8-bit Automotive AVR Microcontroller, 16KB ISP Flash, LIN Controller
ATSAMDA1E14AARM® Cortex®-M0+ microcontroller with 16KB Flash, 4kB SRAM, 512Byte RWW Flash, 4 SERCOM, 5 Timer Counter (TC), 3 Timer Counter for Control (TCC), USB, I2S, 10 channel ADC, 2 Analog Comparators, 1 DAC, RTC, PTC, 48MHz, 26 GPIOs, QFN32
ATSAMDA1E15AARM® Cortex®-M0+ microcontroller with 32KB Flash, 4kB SRAM and 1KB RWW Flash, 4 SERCOM, 5 Timer Counter (TC), 3 Timer Counter for Control (TCC), USB, I2S, 10 channel ADC, 2 Analog Comparators, 1 DAC, RTC, PTC, 48MHz, 26 GPIOs, QFN32
ATSAMDA1E16AARM® Cortex®-M0+ microcontroller with 64KB Flash, 8kB SRAM and 2KB RWW Flash, 4 SERCOM, 5 Timer Counter (TC), 3 Timer Counter for Control (TCC), USB, I2S, 10 channel ADC, 2 Analog Comparators, 1 DAC, RTC, PTC, 48MHz, 26 GPIOs, QFN32
ATSAMDA1G14AARM® Cortex®-M0+ microcontroller with 16KB Flash, 4kB SRAM, 512Byte RWW Flash, 6 SERCOM, 5 Timer Counter (TC), 3 Timer Counter for Control (TCC), USB, I2S, 14 channel ADC, 2 Analog Comparators, 1 DAC, RTC, PTC, 48MHz, 38 GPIOs, QFN48
ATSAMDA1G15AARM® Cortex®-M0+ microcontroller with 32KB Flash, 4kB SRAM, 1KB RWW Flash, 6 SERCOM, 5 Timer Counter (TC), 3 Timer Counter for Control (TCC), USB, I2S, 14 channel ADC, 2 Analog Comparators, 1 DAC, RTC, PTC, 48MHz, 38 GPIOs, QFN48
ATSAMDA1G16AARM® Cortex®-M0+ microcontroller with 64KB Flash, 8kB SRAM, 2KB RWW Flash, 6 SERCOM, 5 Timer Counter (TC), 3 Timer Counter for Control (TCC), USB, I2S, 14 channel ADC, 2 Analog Comparators, 1 DAC, RTC, PTC, 48MHz, 38 GPIOs, QFN48
ATSAMDA1J14AARM® Cortex®-M0+ microcontroller with 16KB Flash, 4kB SRAM, 512Byte RWW Flash, 6 SERCOM, 5 Timer Counter (TC), 3 Timer Counter for Control (TCC), USB, I2S, 20 channel ADC, 2 Analog Comparators, 1 DAC, RTC, PTC, 48MHz, 52 GPIOs, TQFP64
ATSAMDA1J15AARM® Cortex®-M0+ microcontroller with 32KB Flash, 4kB SRAM, 1KB RWW Flash, 6 SERCOM, 5 Timer Counter (TC), 3 Timer Counter for Control (TCC), USB, I2S, 20 channel ADC, 2 Analog Comparators, 1 DAC, RTC, PTC, 48MHz, 52 GPIOs, TQFP64
ATSAMDA1J16AARM® Cortex®-M0+ microcontroller with 64KB Flash, 8kB SRAM, 2KB RWW Flash, 6 SERCOM, 5 Timer Counter (TC), 3 Timer Counter for Control (TCC), USB, I2S, 20 channel ADC, 2 Analog Comparators, 1 DAC, RTC, PTC, 48MHz, 52 GPIOs, TQFP64
MCU + LIN SBCDescription
ATA6612CMicrocontroller with LIN Transceiver, 5V Regulator and Watchdog, 8KB Flash
ATA6613CMicrocontroller with LIN Transceiver, 5V Regulator and Watchdog, 16KB Flash
ATA6616CMicrocontroller with LIN Transceiver, 5V Regulator and Watchdog, 8K Flash
ATA6617CMicrocontroller with LIN Transceiver, 5V Regulator and Watchdog 16K Flash
ATA6614QMicrocontroller with LIN Transceiver, 5V regulator and Watchdog, 32k Flash
ATA66425116K Flash Microcontroller with LIN Transceiver, 5V Regulator, Watchdog, 8-channel High Voltage Switch / LED Interface with High Voltage Current Sources, 16-bit SPI
LIN SBCDescription
ATA6622CLIN Bus Transceiver with 3.3V Regulator, Watchdog, TXD Time-out Timer, 20-pin
ATA6624CLIN Bus Transceiver with 5V Regulator, Watchdog, TXD Time-out Timer, 20-pin
ATA6626CLIN Bus Transceiver with 5V Regulator and Watchdog, no TxD Timeout Timer, 20-pin
ATA6628LIN Bus Transceiver with 3.3V Regulator and Watchdog, High-speed Mode
ATA6632314th generation LIN Bus Transceiver with Integrated Voltage Regulator 3.3V, 8-Pin
ATA6632544th generation LIN Bus Transceiver with Integrated Voltage Regulator 5.0V, 8-Pin
ATA664151LIN System Basis Chip with LIN Transceiver, 5V Regulator, Watchdog, 8-channel High Voltage Switch/LED Interface with High Voltage Current Sources, 16-bit SPI