LV8907UW Datasheet, PDF (1/45 Pages) ON Semiconductor – Sensor-less Three-phase Brushless DC Motor Controller

LV8907UW
Advance Information
Sensor-less Three-phase
Brushless DC Motor Controller,
with Gate Drivers, for Automotive
Overview
The LV8907 is a high performance, AEC-Q100 qualified, sensor-less
three-phase BLDC motor controller with integrated gate drivers for driving
external N-MOSFETs. An on-chip two-stage charge pump provides required
gate current for a wide range of ultra low R_DS(ON) type external N-MOSFETs.
The device offers a rich set of system protection and diagnostic functions such
as over-current, over-voltage, short-circuit, under-voltage, over-temperature
and many more. It 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. With an in-built linear regulator for powering an external circuit,
a watchdog timer and a Local Interconnect Network (LIN) transceiver, the
LV8907 offers the smallest system solution footprint.
The LV8907 stores system paramerters in embedded one-time programmable
(OTP) non-volatile memory and operates out of system memory. An SPI
interface is provided for parameter setting and monitoring the system health.
With the operating junction temperature tolerance up to 175ºC and electrically
LIN compatible control signals (PWM and Enable), the LV8907 is an ideal
solution stand-alone automotive BLDC motor control systems.
Features
• AEC-Q100 qualified and PPAP capable.
• Operating junction temperature up to 175ºC
• Operating voltage range from 5.5V to 20V with tolerance from 4.5V to
40V
• Embedded proprietary sensor-less commutation control
• Integrated gate drivers for driving six N-MOSFETs
• Two-stage charge pump for continuous 100% duty-cycle operation
• On-chip OTP memory for storing system parameters
• In-built LIN transciever and Watchdog timer
• SPI interface for real-time parameterization and diagnostic
• Integrated 5V/3.3V regulator output for external circuit
• Supports open-loop as well as closed-loop speed control
• Configurable speed setting and PI control coefficients
• Various system protection features including:
o Shoot through protection using configurable dead-time
o Drain-source short detection
o Cycle-by-cycle current limit and over-current shutdown
o Over-voltage and under-voltage shutdown
o Over-temperature warning and shutdown
o Input PWM fault detection
Typical Applications
• Automotive pumps (Fuel, Oil, and Hydraulic)
• Fans (HVAC, Radiator, Battery Cooling, LED Headlight Cooling)
• BLDC motor control with or without LIN control
• White goods and industial BLDC motor control
This document contains information on a new product. Specifications and information
herein are subject to change without notice.
© Semiconductor Components Industries, LLC, 2015
1
July 2015- Rev. P2
www.onsemi.com
PACKAGE PICTURE
SPQFP48 7x7 / SQFP48K
7 mm x 7 mm SQFP48K
Publication Order Number:
LV8907UW/D