Instructions

VMA402
V. 01 – 14/05/2018 3 ©Velleman nv
5. Overview
VMA402
This module converts the microcontroller's power supply into a higher, adjustable voltage.
This is DC-to-DC voltage adjustable module has an input of 3.5~35 V and an output of 5~56V. The output is
adjusted via a multi-turn potentiometer. Please ensure that the output voltage higher than the input voltage,
so as not to damage the module.
input voltage ............................................................................................... 3.5 to 35 VDC
output voltage .............................................................................. 5 to 55 VDC (adjustable)
max. input current ....................................................................................................... 3 A
continuous input current ............................................................................................... 2 A
chip .................................................................................................................... LM2577
dimensions ............................................................................................. 43 x 30 x 12 mm
6. Pin Layout
IN+
positive input
IN-
negative input
OUT+
positive output
OUT-
negative output
7. More Information
Please refer to the VMA402 product page on www.velleman.eu for more information.
Use this device with original accessories only. Velleman nv cannot be held responsible in the event
of damage or injury resulting from (incorrect) use of this device. For more info concerning this
product and the latest version of this manual, please visit our website www.velleman.eu. The
information in this manual is subject to change without prior notice.
© COPYRIGHT NOTICE
The copyright to this manual is owned by Velleman nv. All worldwide rights reserved. No part of this
manual may be copied, reproduced, translated or reduced to any electronic medium or otherwise without the
prior written consent of the copyright holder.