Transcription of LV8907UW - Sensor-less Three-phase Brushless DC …
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LV8907UW - Sensor-less Three-phase Brushless DC …
Semiconductor Components Industries, LLC, 2016 June, 2018 Rev. 11 Publication Order Number: LV8907UW /DLV8907 UWSensor- less three -phaseBrushless DC MotorController, with GateDrivers, for AutomotiveOverviewThe LV8907 is a high performance, AEC Q100 qualified, sensor less three phase BLDC motor controller with integrated gatedrivers for driving external N MOSFETs. An on chip two stagecharge pump provides required gate voltage for a wide range of lowRDS(ON) type external N MOSFETs. The device offers a rich set ofsystem protection and diagnostic functions such as over current,over voltage, short circuit, under voltage, over temperature andmany more. It supports open loop as well as closed loop speedcontrol with user configurable startup, speed setting andproportional/integral (PI) control coefficients, making it suitable for awide range of motor and load combinations. With a built in linearregulator for powering external circuits, a watchdog timer, and a LIN(Local Interconnect Network) transceiver, the LV8907 offers a verysmall system LV8907 stores system parameters in embedded one timeprogrammable (OTP) non volatile memory in addition to RAMsystem memory.
LV8907UW www.onsemi.com 2 LV8907 BLOCK DIAGRAM Figure 1. LV8907 Block Diagram MOSFET Pre−driver Or Gate Driver Charge Pump + − …
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