onsemi LV8907UW BLDC Motor Controller

onsemi LV8907UW BLDC (Brushless DC) Motor Controller is a  high-performance, sensorless three-phase device, featuring integrated gate drivers and a dual-stage charge pump. The LV8907UW provides required gate current for a wide range of ultra low RDS(ON) type external N-MOS FETs, and includes protection for over-current, over-voltage, short-circuit, under-voltage, and over-temperature. It supports an operating voltage range from 5.5V to 20V and uses trapezoidal or sinusoidal back EMF (Electromotive Force) feedback.

AEC-Q100 qualified, the LV8907UW Motor Controller features an operational temperature range up to 175°C, making it suitable for automotive applications, as well as consumer and industrial applications.

The LV8907UW BLDC supports open-loop as well as closed-loop speed control with user-configurable startup, speed setting, and Proportional/Integral (PI) control coefficients, making it suitable for a wide range of motor and load combinations. The LV8907 offers a high degree of integration, with an in-built linear regulator for powering an external circuit, a watchdog timer, and a Local Interconnect Network (LIN) transceiver. Offered in a compact 48-pin SPQFP48 package, the LV8907 offers a very small solution footprint.

Features

  • AEC-Q100 qualified for automotive applications
  • Operating junction temperature up to 175°C
  • Operating voltage range from 5.5V to 20V with a tolerance from 4.5V to 40V
  • Embedded proprietary sensor-less commutation control
  • Integrated LIN transceiver and Watchdog timer
  • Connectivity with automotive network system
  • SPI interface for real-time parameterization and diagnostic
  • Optional capability for micro-processer
  • Integrated 5V/3.3V regulator output for external circuit
  • Integrated gate drivers for driving six N-MOSFETs
  • Dual-stage charge pump for continuous 100% duty-cycle operation
  • Supports open-loop as well as closed-loop speed control
  • Configurable speed setting and PI control coefficients
  • System protection features
    • Shoot through protection using configurable dead-time
    • Drain-source short detection
    • Cycle-by-cycle current limit and over-current shutdown
    • Over-voltage and under-voltage shutdown
    • Over-temperature warning and shutdown
    • Input PWM fault detection
    • Compact SQFP48K Package

Applications

  • BLDC motor control with or without LIN control
  • Automotive pumps
    • Fuel
    • Oil
    • Hydraulic
  • Fans
    • HVAC
    • Radiator
    • Battery Cooling
    • LED Headlight Cooling

Block Diagram

onsemi LV8907UW BLDC Motor Controller
Publicado: 2018-03-27 | Actualizado: 2022-10-20