kumar_prashu Posted September 14, 2004 Report Share Posted September 14, 2004 Hello everbudyI am prashant. I am trying to make a stepper motor controller card using UCN5804B chip (allegro make). The problem is that i am not sure about the circuit shown in the datasheet of the Chip by the chip manufacturers. The circuit uses only diodes as an external elements. I want to know whether some other elementr such as current amp. are required or not, also is there need to put the chip on the HEAT SINK.The chip gets heated on application of power supply to the motor. is it damaged. also the pin no.-9 is showing CONTINUITY with earthed pins on the chip even when detached from the circuit board.please advice.thanks in advance.For yoy convenience i am attaching the datasheet of the chip.unipolar_driver.pdf Quote Link to comment Share on other sites More sharing options...
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