Description
This module uses an LM74500-Q1 controller for reverse polarity protection, as well as an N-channel MOSFET to provide protection against negative voltages down to -60V. It operates from input voltages from 4V (3.2V after startup) to 60V and has a path resistance of about 10mΩ when the MOSFET is on (i.e. when the power supply is connected with correct polarity). This allows currents of up to about 10A in continuous operation (and up to about 30A for a few seconds).
However, this version does not block return currents, making it suitable for applications such as motor controls that can feed energy back into the supply.
Specifications:
- Operating voltage: 4–60 V
- Maximum current: 10 A
- On-resistance: < 10 mΩ
- Backflow blocking: no
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