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DRV8833-Dissipation (voir la source)
Version du 28 septembre 2014 à 08:15
, 28 septembre 2014 à 08:15Page créée avec « {{DRV8833-NAV}} {{traduction}} {{bloc-etroit|text=The DRV8833 datasheet recommends a maximum continuous current of 1.5 A per motor channel. However, the chip by itself will... »
{{DRV8833-NAV}}
{{traduction}}
{{bloc-etroit|text=The DRV8833 datasheet recommends a maximum continuous current of 1.5 A per motor channel. However, the chip by itself will overheat at lower currents. For example, in our tests at room temperature with no forced air flow, the chip was able to deliver 1.5 A per channel for about a minute before the chip’s thermal protection kicked in and disabled the motor outputs, while a continuous current of 1.2–1.3 A per channel was sustainable for many minutes without triggering a thermal shutdown. The actual current you can deliver will depend on how well you can keep the motor driver cool. The carrier’s printed circuit board is designed to draw heat out of the motor driver chip, but performance can be improved by adding a heat sink. Our tests were conducted at 100% duty cycle; PWMing the motor will introduce additional heating proportional to the frequency.
{{ambox-stop|text=This product can get hot enough to burn you long before the chip overheats. Take care when handling this product and other components connected to it.}}
}}
{{DRV8833-TRAILER}}
{{traduction}}
{{bloc-etroit|text=The DRV8833 datasheet recommends a maximum continuous current of 1.5 A per motor channel. However, the chip by itself will overheat at lower currents. For example, in our tests at room temperature with no forced air flow, the chip was able to deliver 1.5 A per channel for about a minute before the chip’s thermal protection kicked in and disabled the motor outputs, while a continuous current of 1.2–1.3 A per channel was sustainable for many minutes without triggering a thermal shutdown. The actual current you can deliver will depend on how well you can keep the motor driver cool. The carrier’s printed circuit board is designed to draw heat out of the motor driver chip, but performance can be improved by adding a heat sink. Our tests were conducted at 100% duty cycle; PWMing the motor will introduce additional heating proportional to the frequency.
{{ambox-stop|text=This product can get hot enough to burn you long before the chip overheats. Take care when handling this product and other components connected to it.}}
}}
{{DRV8833-TRAILER}}