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September 2013

DocID025033 Rev 3

1/12

STEVAL-VNH5050A

Motor driver evaluation board based on VNH5050A

Data brief

Features

• Handling up to 30 A of maximum motor current

output

• Undervoltage and overvoltage shutdown

• Overvoltage clamp

• Device thermal protection

• Cross-conduction protection

• Current and power limitation

• Very low standby power consumption

• Programmable PWM operation (up to 20 kHz)

• Protection against loss of ground and loss of

• Motor current monitoring (thanks to VNH5050A

current sense output)

• Device output protected against short to

• Graphic User Interface (GUI)

Description

STEVAL-VNH5050A offers dedicated power

stage and controls suitable for electric DC motor

driving. This evaluation board comes

pre-assembled with VNH5050A H-bridge

belonging to the VNH Motor Driver series based

applications are dual washer pump and 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 VNH5050A 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 VNH5050A

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.

Type

VNH5050A-E

50 m

Ω max

(per leg)

30 A

41 V

Table 1. Device summary

Order code

Reference

STEVAL-VNH5050A

VNH5050A evaluation board

www.st.com