ON Semiconductor introduced its LV8907UW three-phase motor controller, supporting a brushless motor operating voltage range from 5.5 to 20 volts (4.5 to 40 V transient).
This three-phase motor controller integrates gate drivers for six N-channel MOSFETs, and a dual-stage charge pump for 100% duty-cycle operation.
The LV8907UW IC can operate without an external microcontroller. It requires no programming – key parameters and functions, such as startup and speed setting, can be configured using the SPI interface and stored in embedded non-volatile (OTP) memory. Both open-loop and closed-loop speed control are possible.
For more complex applications the LV8907UW three-phase motor controller supports a small microcontroller with its integrated linear regulator (3.3V or 5V, 50mA), a local interconnect network (LIN) transceiver for automotive connectivity, and a watchdog timer.
AEC-Q100 qualified, the LV8907UW operational temperature range reaches up to 175°C. Integrated protection mechanisms include over-current, over-voltage, short circuit, under-voltage, and over-temperature. The features of the device make it ideal for use in automotive water pumps, oil pumps, fuel pumps, HVAC systems, radiator fans, and headlamp cooling units.
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