STEVAL-VNH5050A
Motor driver evaluation board based on VNH5050A
Data brief
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
on VIPower® proprietary technology. Typical
applications are dual washer pump and seat
regulation.
This evaluation board consists of a motherboard
(STM8 Universal Board) and a daughterboard.
Features
Type
RDS(on)
Iout
VCC(max)
VNH5050A-E
50 mΩ max
(per leg)
30 A
41 V
• Handling up to 30 A of maximum motor current
output
• Undervoltage and overvoltage shutdown
• Overvoltage clamp
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 userfriendly 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.
• 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
VCC
• Motor current monitoring (thanks to VNH5050A
current sense output)
• Device output protected against short to
ground and short to VCC
• Graphic User Interface (GUI)
Table 1. Device summary
Order code
STEVAL-VNH5050A
September 2013
DocID025033 Rev 3
For further information contact your local STMicroelectronics sales office.
Reference
VNH5050A evaluation board
1/12
www.st.com
Application schematics and layouts
1.1
VNH5050A daughterboard
Figure 1. VNH5050A daughterboard top layer
Application schematics and layouts
2/12
1
DocID025033 Rev 3
STEVAL-VNH5050A
STEVAL-VNH5050A
Figure 2. VNH5050A daughterboard bottom layer
DocID025033 Rev 3
Application schematics and layouts
3/12
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DocID025033 Rev 3
STEVAL-VNH5050A
STEVAL-VNH5050A
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DocID025033 Rev 3
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Figure 9. STM8 motherboard - USB Interface application schematic
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2
Revision history
Revision history
Table 2. Document revision history
Date
Revision
Changes
22-Jul-2013
1
Initial release.
06-Sep-2013
2
Updated Section 1.2: STM8 motherboard
16-Sep-2013
3
Updated disclaimer.
DocID025033 Rev 3
11/12
11
STEVAL-VNH5050A
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