InfineonTLE983x智能汽车继电器驱动解决方案

Infineon公司的TLE983x是基于智能LIN和集成了8位MCU的继电器驱动器和接口电路,MCU内核为XC800系列和标准的8051核兼容,工作频率高达40MHz,具有专用功率驱动器,控制和通信模块,主要用在车窗升降,座椅,风扇控制,开关面板接口和键盘接口.本文介绍了TLE983x主要特性和优势,方框图,智能车窗升降模块框图以及评估板电路图,材料清单和PCB布局图.

The TLE983x is a single chip solution that integrates a high performance 8-bit microcontroller derived from the established XC800 family with application specific power drivers, control and communication modules in an automotive qualified new Smart-Power Technology.

The TLE983x family concept offers scalability in terms of Flash memory sizes ranging from 36kB to 64kB with pin-compatible devices.

The TLE983x family was specifically designed to fit to a wide range of LIN-slave applications where a small package form factor and a minimum number of external components is essential.

TLE983x主要特性:

• High performance XC800 core

– compatible to standard 8051 core

– up to 40 MHz clock frequency

– two clocks per machine cycle architecture

– two data pointers

• On-chip memory

– 20, 32, 44 or 60 kByte + 4 kByte Flash for program code and data (4 kByte EEPROM emulation built-in)

– 512 Byte One Time Programmable Memory (OTP)

– 512 Byte 100 Time Programmable Memory (100TP)

– 256 Byte RAM

– 3 kByte XRAM

– BootROM for startup firmware and Flash routines

• Core logic supply at 1.5 V

• On-chip OSC and PLL for clock generation

– Loss of clock detection with fail safe mode for LSS, HSS and LIN

• Watchdog timer (WDT) with programmable window feature for refresh operation and warning prior to overflow

• General-purpose I/O Port (GPIO) with wake-up capability

• Multiplication/division unit (MDU) for arithmetic calculation

• Software libraries to support floating point and MDU calculations

• Five 16-Bit timers - Timer 0, Timer 1, Timer 2, Timer 21 and Timer 3

• Capture/compare unit for PWM signal generation (CCU6) and Hall Sensor measurement with Timer 12 and Timer 13

• Full duplex serial interface (UART) with LIN support

• Synchronous serial channel (SSC)

• On-chip debug support via 2-wire Device Access Port (DAP)

• LIN Bootstrap loader (LIN BSL)

• LIN transceiver compliant to LIN 1.3, LIN 2.0 and LIN 2.1

• 2 x Low Side Switches with clamping capability incl. PWM functionality, e.g. as relay driver

• 1 or 2 x High Side Switches with cyclic sense option and PWM functionality, e.g. for LED or powering of switches

• High Voltage Monitor Input pins for wake-up and with cyclic sense and analog measurement option

• Measurement unit with 10 channels, 8-Bit A/D Converter (ADC2) and data post processing
• 8 channels, 10-Bit A/D Converter (including battery voltage and supply voltage measurement) (ADC1)

• Single power supply from 3.0 V to 27 V

• Low-dropout voltage regulators (LDO)

• Dedicated 5 V voltage regulator for external loads (e.g. hall sensor)

• Programmable window watchdog (WDT1) with independent on-chip clock source

• Optional Operational amplifier for current sensing

• Power saving modes

– MCU slow-down mode

– Stop Mode

– Sleep Mode

– Cyclic wake-up and cyclic sense during Stop Mode and Sleep Mode

• Power-on and undervoltage/brownout reset generator

• Overtemperature protection

• Overcurrent protection with shutdown

• Supported by a full range of development tools including C compilers, macroassembler packages, emulators, evaluation boards, HLL debuggers, programming tools, software packages

• Temperature Range TJ: -40 °C up to 150 °C

• Package PG-VQFN-48

• Green package (RoHS compliant)

TLE983x主要优势:

„„Complete system-on-chip (SoC) for ECU’s that communicate via LIN interface with main ECU

„„High-voltage monitoring inputs for off-board switch control

„„Highly flexible SoC through dedicated configuration registers for e.g. current and voltage settings as well as power saving modes

„„High pin-count VQFN package with 7×7mm footprint enables space saving PCB designs

TLE983x汽车应用:

„„Window Lift

„„Power Seats

„„Sun Roof

„„Fan/Blower Control

„„Key Pad Interface

„„Switch Panel Interface

图1.TLE983x方框图

图2.TLE983x智能车窗升降模块框图

图3.TLE983x评估板外形图

图4.TLE983x评估板电路图(1)

图5.TLE983x评估板电路图(2)

TLE983x评估板材料清单:


 



图6.TLE983x评估板PCB布局图(1)


图7.TLE983x评估板PCB布局图(2)


图8.TLE983x评估板PCB布局图(3)


图9.TLE983x评估板PCB布局图(4)


图10.TLE983x评估板PCB布局图(5)


图11.TLE983x评估板PCB布局图(6)


图12.TLE983x评估板PCB布局图(7)