
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
