原标题：infineon公司TLE9879汽车三相马达驱动解决方案

　　infineon公司的TLE9879QXA20是集成了ARM® Cortex®-M3 MCU和LIN和BLDC MOSFET驱动器的三相马达驱动器，包括了全集成的NFET驱动器，它通过六个外接功率NFET来驱动3相马达;能低压工作的电荷泵以及具有电流斜率控制的可编程电流，从而最优化EMI性能。外设包括电流传感器，逐次逼近式模拟转换器(ADC)以及用于PWM控制的捕获和比较和16位计时器。此外还集成了LIN收发器和大量的通用I/O与线性稳压器以给外接负载供电。主要用在汽车燃料泵，HVAC风机，引擎冷却风扇，水泵，BLDC泵和风扇，无传感器和有传感器BLDC马达。本文介绍了TLE9879QXA20主要特性，框图以及功率管理单元框图，系统控制单元-数字模块框图，Cortex-M3核框图，简化应用框图和外接元件表，评估板TLE9879 EvalKit V1.2主要特性，电路图和PCB设计图。

　　The TLE9879QXA20 is part of the TLE987x product family. The TLE9879QXA20 is a single chip 3-Phase motor driver that integrates the industry standard ARM® Cortex™ M3 core， enabling the implementation of advanced motor control algorithms such as field-oriented control. It includes six fully integrated NFET drivers optimized to drive a 3-Phase motor via six external power NFETs， a charge pump enabling low voltage operation and programmable current along with current slope control for optimized EMC behavior. Its peripheral set includes a current sensor， a successive approximation ADC synchronized with the capture and compare unit for PWM control and 16-bit timers. A LIN transceiver is also integrated to enable communication to the device along with a number of general purpose I/Os. It includes an on-chip linear voltage regulator to supply external loads.

　　It is a highly integrated automotive qualified device enabling cost and space efficient solutions for mechatronic BLDC motor drive applications such as pumps and fans.

　　TLE9879QXA20主要特性：

　　• 32 bit ARM Cortex M3 Core

　　– up to 24 MHz clock frequency

　　– one clock per machine cycle architecture

　　• On-chip memory

　　– 128 kByteFlash including

　　– 4 kByte EEPROM (emulated in Flash)

　　– 512 Byte 100 Time Programmable Memory (100TP)

　　– 6 kByte RAM

　　– Boot ROM for startup firmware and Flash routines

　　• On-chip OSC and PLL for clock generation

　　– PLL loss-of-lock detection

　　• MOSFET driver including charge pump

　　• 10 general-purpose I/O Ports (GPIO)

　　• 5 analog inputs， 10-bit A/D Converter (ADC1)

　　• 16-bit timers - GPT12， Timer 2， Timer 21 and Timer 3

　　• Capture/compare unit for PWM signal generation (CCU6)

　　• 2 full duplex serial interfaces (UART) with LIN support (for UART1 only)

　　• 2 synchronous serial channels (SSC)

　　• On-chip debug support via 2-wire SWD

　　• 1 LIN 2.2 transceiver

　　• 1 high voltage monitoring input

　　• Single power supply from 5.5 V to 27 V

　　• Extended power supply voltage range from 3 V to 28 V

　　• Low-dropout voltage regulators (LDO)

　　• High speed operational amplifier for motor current sensing via shunt

　　• 5 V voltage supply for external loads (e.g. Hall sensor)

　　• Core logic supply at 1.5 V

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

　　• Power saving modes

　　– MCU slow-down Mode

　　– Sleep Mode

　　– Stop Mode

　　– Cyclic wake-up Sleep Mode

　　• Power-on and undervoltage/brownout reset generator

　　• Overtemperature protection

　　• Short circuit protection

　　• Loss of clock detection with fail safe mode entry for low system power consumption

　　• Temperature Range Tj = -40℃ to +150℃

　　• Package VQFN-48 with LTI feature

　　• Green package (RoHS compliant)

　　• AEC qualified

　　TLE9879QXA20目标应用：

　　Fuel pump

　　HVAC blower

　　Engine cooling fan

　　Water pumps

　　BLDC pumps and fans

　　Sensor-less and sensor-based BLDC motor applications controlled by the Local Interconnect Network (LIN) or PWM