Automotive fully integrated H-bridge motor driver

The VNH5050A-E 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 dies are assembled in a PowerSSO-36 TP package on electrically isolated lead frames. This package, specifically designed for the harsh automotive environment offers improved thermal performance thanks to exposed die pads. Moreover, its fully symmetrical mechanical design allows superior manufacturability at board level. The input signals INAand INBcan directly interface to the microcontroller to select the motor direction and the brake condition. The DIAGA/ENAor DIAGB/ENB, when connected to an external pull-up resistor, enables one leg of the bridge. Each DIAGA/ENAprovides a digital diagnostic feedback signal as well. The normal operating condition is explained in the truth table. The CS pin allows monitoring the motor current by delivering a current proportional to its value when CS_DIS pin is driven low or left open. When CS_DIS is driven high, CS 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 LSAand LSBswitches.

Key Features

  • Output current: 30 A
  • 3 V CMOS compatible inputs
  • Undervoltage and overvoltage shutdown
  • Overvoltage clamp
  • Thermal shutdown
  • Cross-conduction protection
  • Current and power 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
  • Output protected against short to ground and short to VCC
  • Package: ECOPACK®

Circuit Diagram

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Technical Documentation

Product Specifications
Description Version Size
DS6398 DS6398: Automotive fully integrated H-bridge motor driver 11.0 720 KB
Application Notes
Description Version Size
AN4892 AN4892: VIPower M0-5 H-bridges - hardware design guide 2.0 2 MB

Presentations & Training Material

Description Version Size
Integrated H-bridge motor control 1.0 1 MB

Publications and Collaterals

Description Version Size
VIPower™ VNH5 series 1.0 1 MB
Selection Guides
Description Version Size
Smart power solutions for car body applications 4.0 3 MB

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Sample & Buy

Part Number Package Packing Type Operating Temperature (°C) (min) Operating Temperature (°C) (max) Marketing Status Unit Price (US$) * Quantity ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
VNH5050A-E PSSO 36 Tube - - Active 2.693 1000 NEC EAR99 MALAYSIA MORE INFO No availability reported, please contact our Sales office

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
VNH5050ATR-E ActivePSSO 36AutomotiveEcopack2
VNH5050A-E ActivePSSO 36AutomotiveEcopack2

(**) The Material Declaration forms available on may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.