VNH7070AY屬于集成電路（IC）的電機(jī)驅(qū)動(dòng)器控制器。由意法半導(dǎo)體集團(tuán)制造生產(chǎn)的VNH7070AY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。

特性 Features

? AEC-Q100 qualified

? Output current: 20 A

? 3 V CMOS compatible inputs

? Undervoltage shutdown

? Overvoltage clamp

? Thermal shutdown

? Cross-conduction protection

? Current and power limitation

? Very low standby power consumption

? Protection against loss of ground and loss of

VCC

? PWM operation up to 20 KHz

? Multisense monitoring functions

– Analog motor current feedback

– Chip temperature monitoring

– Battery voltage monitoring

? Multisense diagnostic functions

– Output short to ground detection

– Thermal shutdown indication

– OFF-state open-load detection

– High-side power limitation indication

– Low-side overcurrent shutdown indication

– Output short to VCC detection

? Output protected against short to ground and

short to VCC

? Standby mode

? Half bridge operation

? Package: ECOPACKR

描述 Description

The device is a full bridge motor driver intended for a wide range of automotive applications. The device incorporates a dual monolithic high-side driver and two low-side switches. All switches are 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 circuitry. The three dice are assembled in a PowerSSO-36 package equipped with three exposed islands for optimized dissipation performances. This package is specifically designed for the harsh automotive environment and offers improved thermal performance thanks to exposed die pads. A Multisense_EN pin is available to enable the MultiSense diagnostic. The input signals INA and INB can directly interface the microcontroller to select the motor direction and the brake condition. Two selection pins (SEL0 and SEL1) are available to address to the microcontroller the information available on the Multisense. The Multisense pin allows to monitor the motor current by delivering a current proportional to the motor current value and provides also the diagnostic feedback according to the implemeted truth table. When MultiSense_EN pin is driven low, MultiSense pin is in high impedance condition. The PWM, up to 20 KHz, allows 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.