TLE9871QXA20
TLE9871QXA20 supports low-cost BLDC applications and is typically used for water pump
The TLE9871QXA20 is part of the TLE987x product family. The TLE9871QXA20 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 high voltage bidirectional PWM Module is also integrated to offer a robust physical layer interface for PWM 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.
Zusammenfassung der Merkmale
- Six current programmable Drivers with charge pump for N-Channel MOSFET
- Two Full duplex serial interface (UART)
- Two Synchronous serial channel (SSC)
- On-chip OSC and PLL for clock generation
- One high voltage monitoring input with wake up functionality
- High speed Operational amplifier for motor current sensing via shunt
- Measurement unit:
- 8-bit ADC module with 10 multiplexed inputs
- 10-bit ADC module with 8 multiplexed inputs, 5 external Analog inputs
- On chip temperature and battery voltage measurement unit
- Independent Programmable window watchdog
- 5V/1.5V Internal supplies
- External Supply (VDDEXT): 5V+/-2% @ 20mA
- Power saving modes:
- MCU slow-down Mode
- Sleep Mode
- Stop Mode
- Cyclic wake-up Sleep Mode
Features of the Microcontroller:
- 32 bit Arm® Cortex®-M3 Core, up to 24 MHz clock frequency
- 36 kByte flash memory for code and data
- 32 kByte Boot ROM memory in code space (used for boot code and IP storage)
- 3 kByte RAM memory
- Harvard architecture
- Thumb®-2 Instruction Set and hardware divide and multiplication unit
- Four 16-Bit timers
- Capture/compare unit for PWM signal generation (CCU6) with 2 x 16-bits timers
General Characteristics:
- Operating supply voltage Vs=5.5 to 28V, maximum rating 40V
- Extended operating range Vs=3.0 to 28V, MCU / Flash fully functional
- ESD performance:
- up to 2kV / handling on all pins
- 4kV @ HV inputs
- 6kV @ LIN pin
- Overvoltage device clamp (load dump ruggedness) up to 40V
- Wide operating temperature range: Tj:-40°C up to 150°C
Vorteile
- Complete system-on-chip for BLDC motor control
- Minimum number of external components reduce BOM cost
- PG-VQFN package with 7 x 7mm footprint enable PCB space saving
Potentielle Zielanwendungen
- Fuel pumps
- HVAC blowers
- Engine cooling fans
- Water pumps
- Auxiliary BLDC pumps and fans
- BLDC motor applications controlled by PWM
Automotive Motor Control – Understandable
Welcome to our new training series “Automotive Motor Control - Understandable”. This series is aimed at all those who have something to do with electric motors and motor control in Automotive or want to get a first overview. The topics covered within the training have furthermore been tailored to auxiliary units such as pumps and fans.
