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Automotive fully integrated H-bridge motor driver
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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.

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Errata Sheet
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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

Design Resources


Technical Documentation

Product Specifications

Description Version Size
DS6398: Automotive fully integrated H-bridge motor driver
11.0 721 KB

HW Model & CAD Libraries

HW Model & CAD Libraries

Description Version Size
VNH5050A-E OrCAD model v.4.1
4.1 61 KB

Presentations & Training Material


Description Version Size
Integrated H-bridge motor control
1,311 KB

Related Tools and Software

Related Tools and Software

Part Number Description
STEVAL-VNH5050A VNH5050A Evaluation Board
TwisterSIM Dynamic Electro-Thermal simulator for devices in VIPower technology
EV-VNH5050A VNH5050A Evaluation Board

Publications and Collaterals


Description Version Size
VIPower™ VNH5 series
1,980 KB


Description Version Size
VIPower M0-5: the smart power device
1.0.0 540 KB

Sample & Buy

Part Number Marketing StatusPackagePacking TypeOperating Temperature (min) Operating Temperature (max) Automotive GradeOrder From STUnit Price (US$)*
@ 1000
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
VNH5050A-EActivePSSO 36TubeYes-2.693Distributor reported inventory date: 2016-02-10
Distributor NameRegionStockMin. order
VNH5050ATR-EActivePSSO 36Tape And ReelYesFree Samples2.693Distributor reported inventory date: 2016-02-10
Distributor NameRegionStockMin. order
ARROWOrder NowAMERICA170001000

(*) 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
(**) 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.
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