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Anurag,

Yes, dead time is built in on the DRV8402.  It is specified in the tabular data.  

However, please look at the DRV8432 for new designs.

hello sir,

can u tell me that what is max. voltage for pwm signal which we can give to DRV8402?  Is it +12V?

Thank u

hello sir,

please help..... I need to buy heat sink for DRV8402 and DRV8432....so where I will find it

Maximum input voltage for PWM pins is specified in the datasheet under the "ABSOLUTE MAXIMUM" table in the front.  

PWM_X to GND –0.3 V to 4.2 V

thank u so much

but link u have send is not opening

For the DRV8432 heatsink, we start with an extrusion from a company called AAVID.  We then send it to a machine shop to cut it to the length we need.  Unfortunately, we use a local machine shop that does not stock the heat sinks for order.  We are still searching for a good partner to send customers to.  

To answer your question, the thermal resistance is approximately 4.4C/W.  I have attached a datasheet of a catalog heatsink from AAVID with dimensions that match the heatsink on the DRV8432EVM.

http://www1.futureelectronics.com/doc/AAVID%20THERMALLOY/652453B11811G.pdf

It is also important to note that a lot of catalog heatsinks are black anodized.  If they go with a heatsink like this, they need to machine the surface of the HS where is contacts the thermal pad on the IC.  Essentially scraping off the coating and exposing the metal.  This allows an electrical connection to our device when the HS is grounded to the board.  This electrical connection helps to quiet the substrate of the device when load currents are high.  

Viral,

Thanks...I will let you know if a specific opportunity comes up and we need your help.

Thanks for reply Ryan