伊人大杳蕉在线影院75_一点不卡v中文字幕在线_黄桃AV无码免费一区二区三区_中文字幕人妻互换激情

·I2S數(shù)字功放IC/內(nèi)置DSP音頻算法功放芯片 ·馬達(dá)驅(qū)動(dòng)IC ·2.1聲道單芯片D類功放IC ·內(nèi)置DC/DC升壓模塊的D類功放IC ·鋰電充電管理IC/快充IC ·無(wú)線遙控方案 ·直流無(wú)刷電機(jī)驅(qū)動(dòng)芯片

當(dāng)前位置：首頁(yè)->方案設(shè)計(jì)

VHN5019A－E汽車H橋馬達(dá)驅(qū)動(dòng)解決方案

文章來(lái)源：更新時(shí)間：2014/8/7 10:09:00

在線咨詢：

張代明 3003290139

姚紅霞 3003214837

鄢先輝 2850985542

13713728695

ST公司的VHN5019A-E是全集成的汽車H橋馬達(dá)驅(qū)動(dòng)器,包括兩個(gè)高邊驅(qū)動(dòng)器和兩個(gè)低邊開(kāi)關(guān),無(wú)鉛和RoHS兼容的ECOPACK®,和AEC兼容的汽車級(jí)產(chǎn)品,3V CMOS兼容輸入,輸出電流30A,DC-20kHz PWM工作,具有智能信號(hào)和保護(hù)特性.本文介紹了VHN5019A-E主要特性,框圖, 典型應(yīng)用電路和多個(gè)馬達(dá)配置圖,以及評(píng)估板STEVAL-VNH5019A主要特性,主板和子板電路圖與PCB設(shè)計(jì)圖.
The VHN5019A-E is a full bridge motor driver intended for a wide range of automotive applications. The device incorporates a dual monolithic high-side drivers and two low-side switches. The high-side driver switch is designed using STMicroelectronics’ well known and proven proprietary VIPower® M0 technology that allows to efficiently integrate on the same die a true Power MOSFET with an intelligent signal/protection circuit.
The three dice are assembled in MultiPowerSO-30 package on electrically isolated lead-frames. This package, specifically designed for the harsh automotive environment offers improved thermal performance thanks to exposed die pads. The input signals INA and INB can directly interface to the microcontroller to select the motor direction and the brake condition.
The DIAGA/ENA or DIAGB/ENB, when connected to an external pull-up resistor, enable one leg of the bridge. They also provide a feedback digital diagnostic signal. The CS pin allows to monitor the motor current by delivering a current proportional to its value when CS_DIS pin is driven low or left open. The PWM, up to 20 KHz, lets us to control the speed of the motor in all possible conditions. In all cases, a low-level state on the PWM pin turns-off both the LSA and LSB switches. When PWM rises to a high-level, LSA or LSB turn-on again depending on the input pin state.Output current limitation and thermal shutdown protects the concerned high-side in short to ground condition.
The short to battery condition is revealed by the overload detector or by thermal shutdown that latches off the relevant low-side.Active VCC pin voltage clamp protects the device against low energy spikes in all configurations for the motor.CP pin provides the necessary gate drive for an external n-channel PowerMOS used for reverse polarity protection.

VHN5019A-E主要特性:
■ ECOPACK®: lead free and RoHS compliant
■ Automotive Grade: compliance with AEC guidelines
■ Output current: 30 A
■ 3 V CMOS compatible inputs
■ Undervoltage and overvoltage shutdown
■ High-side and low-side thermal shutdown
■ Cross-conduction protection
■ Current limitation
■ Very low standby power consumption
■ PWM operation up to 20 khz
■ Protection against:
– Loss of ground and loss of VCC
■ Current sense output proportional to motor current
■ Charge pump output for reverse polarity protection
■ Output protected against short to ground and short to VCC

圖1. VHN5019A-E框圖

圖2. VHN5019A-E 帶電池反向保護(hù)DC-20kHz PWM典型應(yīng)用電路(選擇A)

圖3. VHN5019A-E帶電池反向保護(hù)DC-20kHz PWM典型應(yīng)用電路(選擇B)

圖3. VHN5019A-E半橋配置圖

圖4. VHN5019A-E多個(gè)馬達(dá)配置圖

評(píng)估板STEVAL-VNH5019A
STEVAL-VNH5019A offers dedicated power stage and controls suitable for electric DC motor driving. This evaluation board comes pre-assembled with VNH5019A H-bridge belonging to the VNH Motor Driver series based on VIPower^®proprietary technology.Typical applications are Windows Lift, Sliding Door, Seat regulation.
This Evaluation Board consists of a motherboard (STM8 Universal Board) and a daughterboard.
The motherboard, based on STM8 microcontroller, provides the logic section for monitoring and driving the VNH5019A assembled in the daughterboard.
With the aim to make simpler the board usage and settings, ST provides a dedicated and user-friendly software with a Graphic User Interface (GUI). This enables the user to set VNH5019A parameters (PWM, Motor direction…) and at the same time it shows real time device diagnostic information like current output evolution, battery voltage monitoring, board temperature and much more.

評(píng)估板STEVAL-VNH5019A主要特性:
Handling up to 30 A of maximum motor current output
Undervoltage and overvoltage shutdown
Device thermal protection
Cross-conduction protection
Very low standby power consumption
Programmable PWM operation (up to 20 kHz)
Protection against loss of ground and loss of V_CC
Motor current monitoring (thanks to VNH5019A current sense output)
On-board charge pump output for reverse polarity protection
Device output protected against short to ground and short to V_CC
Graphic User Interface (GUI)