STMicroelectronics VNH7070BAS | Demoboard AEK-MOT-2DC70S1

Team IIGA
June 10, 2021

Automotive fully integrated H-bridge motor driver

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.Both switches are designed using STMicroelectronics’ well known and proven proprietary VIPower®M0-7 technology that allows to efficiently integrate on the same die a true Power MOSFET with an intelligent signal/protection circuitry. The three dies are assembled in SO-16N package on electrically isolated lead-frames.Moreover, its fully symmetrical mechanical design allows superior manufacturability at board level. The input signals INAand INBcan directly interface the microcontroller to select the motor direction and the brake condition. A SEL0 pin is available to address the information available on the CS to the microcontroller. The CS pin allows to monitor the motor current by delivering a current proportional to the motor current value. 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 LSAand LSBswitches.

Features

  • AEC-Q100 qualified
  • Output current: 15 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
  • CS diagnostic functions
  • Analog motor current feedback
  • Output short to ground detection
  • Thermal shutdown indication
  • OFF-state open-load detection
  • Output short to VCCdetection
  • Output protected against short to ground and short to VCC
  • Standby Mode
  • Half Bridge Operation
  • Package: ECOPACK®

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