RASP-DRV8835-Dissipation - Historique des versions

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2014-10-13T15:22:44Z

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2014-10-13T14:59:57Z

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2014-10-13T13:04:11Z

Admin : Page créée avec « {{RASP-DRV8835-NAV}} {{bloc-etroit|text=The DRV8835 datasheet recommends a maximum continuous current of 1.5 A per motor channel. However, the chip by itself will overheat a... »

2014-10-11T21:22:07Z

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{{bloc-etroit|text=The DRV8835 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 approximately 15 seconds before the chip’s thermal protection kicked in and disabled the motor outputs, while a continuous current of 1.2 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. 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.}}

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{{RASP-DRV8835-TRAILER}}

@@ Ligne 1 : / Ligne 1 : @@
 {{RASP-DRV8835-NAV}}
-{{bloc-etroit|text=La fiche technique du DRV8835 recommande un courant maximum de 1.5 A (en continu) par canal. Cepandant, le circuit-intégré surchauffera avec un courant inférieure. Les tests réalisé par Pololu (température ambiante, sans air forcé) à montré que le DRV8835 à été capable de délivrer 1.5 A par canal pendant environ 15 secondes... *********  channel for approximately 15 seconds before the chip’s thermal protection kicked in and disabled the motor outputs, while a continuous current of 1.2 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. Our tests were conducted at 100% duty cycle; PWMing the motor will introduce additional heating proportional to the frequency.
+{{bloc-etroit|text=La fiche technique du DRV8835 recommande un courant maximum de 1.5 A (en continu) par canal. Cepandant, le circuit-intégré surchauffera avec un courant inférieure. Les tests réalisé par Pololu (température ambiante, sans air forcé) à montré que le DRV8835 à été capable de délivrer 1.5 A par canal pendant environ 15 secondes... après lesquelles la protection thermique s'active et désactive les sorties pour protéger le DRV8835.
-{{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.}}
+Un autre test démontre qu'un courant de 1.2 A par canal peut être maintenu pendant plusieurs minutes avec l'activation de la protection thermique.
 }}
 {{RASP-DRV8835-TRAILER}}

@@ Ligne 1 : / Ligne 1 : @@
 {{RASP-DRV8835-NAV}}
-{{bloc-etroit|text=La fiche technique du DRV8835 recommande un courant maximum de 1.5 A (en continu) par canal. 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 approximately 15 seconds before the chip’s thermal protection kicked in and disabled the motor outputs, while a continuous current of 1.2 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. Our tests were conducted at 100% duty cycle; PWMing the motor will introduce additional heating proportional to the frequency.
+{{bloc-etroit|text=La fiche technique du DRV8835 recommande un courant maximum de 1.5 A (en continu) par canal. Cepandant, le circuit-intégré surchauffera avec un courant inférieure. Les tests réalisé par Pololu (température ambiante, sans air forcé) à montré que le DRV8835 à été capable de délivrer 1.5 A par canal pendant environ 15 secondes... *********  channel for approximately 15 seconds before the chip’s thermal protection kicked in and disabled the motor outputs, while a continuous current of 1.2 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. 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.}}