描述 Description

The LV8968BB is a 3?phase BLDC/PMSM pre?driver with integrated BEMF (Back ElectroMotive Force) sensing and logic level FET compatibility. The wide operating voltage range and AEC?Q100 qualification make this device ideal for automotive applications. Six gate drivers provide 400 mA (typ) gate current to external power
bridges allowing use of low?resistance power FETs as well as logic level FETs. All FETs are protected against overcurrent, short?circuit, over?temperature and gate undervoltage. A multitude of protection and monitoring features make this device suitable for ISO26262 applications. Three independent low?side source pins allow multiple shunt measurement.
The device also includes a programmable linear regulator, a fast current?sense amplifier and a window watchdog for microcontroller support. The SPI interface allows for real time parameter setup and diagnostics. Critical system parameters can be programmed into non?volatile OTP memory.
Junction temperature tolerance up to 175°C and control via wide level WAKE and PWM signals make the LV8968BB an ideal motor pre?driver for automotive applications such as engine cooling fans, fuel, oil, and hydraulic pumps.

特性 Features

? Full Drive Power from 8 V to 28 V Supply Voltage with TransientTolerance from 4.5 V to 40 V
? Extended Voltage Range from 6 V to 33 V Using Logic?level Mode
? Up to 25 kHz Motor PWM with Individual Six Gate Control orDrive?3 Mode with Integrated Programmable Dead?Time
? 5 V / 3.3 V Linear Regulator for External Loads up to 50 mA
? Extensive System Protection Features Including:? Drain?Source Short Detection for External FET? Overcurrent Shutoff? Low Gate Voltage Warning? Over?temperature Warning and Shutoff? Over / Under Voltage Protection
? SPI Interface for Parameter Setup and Diagnostic Access, DynamicAccess to Dead?Time, Amplifier Gain, and Short Circuit Levels
? Non?Volatile (OTP) Memory for Storing Critical System Parameters
? Wide Voltage Enable Line and PWM Interface
? Integrated Window Watchdog Timer Function
? AEC?Q100 Qualified and PPAP Capable
? Thermally Efficient Exposed Die 48 Pin SQFP Package for TransientOperation Up to 175°C

應(yīng)用 Application

? Automotive Fuel, Oil, Water or HydraulicPumps
? Automotive Actuators
? Automotive HVAC and Cooling Fans
? Battery Operated Hand Power Tools
? White Goods

簡(jiǎn)介

LV8968BBUWR2G屬于集成電路（IC）的電機(jī)驅(qū)動(dòng)器控制器。由制造生產(chǎn)的LV8968BBUWR2G電機(jī)驅(qū)動(dòng)器，控制器產(chǎn)品屬于電機(jī)驅(qū)動(dòng)器和控制器電源管理集成電路 (PMIC) 系列，可用于控制或操作從某電源施加到電機(jī)或相關(guān)機(jī)電執(zhí)行器的電源。所實(shí)現(xiàn)的具體功能和特性集根據(jù)預(yù)期負(fù)載和預(yù)期應(yīng)用的特性有很大差異，范圍從用于有刷電機(jī)的簡(jiǎn)單開(kāi)環(huán)速度控制到基于步進(jìn)電機(jī)的高級(jí)閉環(huán)運(yùn)動(dòng)控制。