Yet another reason why I need to stop trying to fill in coding caps=20
myself at midnight. *sigh*

It's driven by ~12-13.5V (in a vehicle,  but FWIW it's not being used=20
for traditional throttle control), and yes it's 11.25W, but that's at 25=20
deg-C.  At max Rds on, that goes up, raises the temp, and that raises=20
the Rds on, resulting in more heat.   I'm not sure how this device can=20
be expected to do 5A continuous.

Thanks,
-Neil.




On 7/28/2014 1:57 AM, Richard R. Pope wrote:
> Neil,
>       What is your drive voltage for the throttle body motor? What
> voltage does the throttle body require? The 2.25 you came up with is
> actually the voltage drop. The power dissipation is 11.25 watts. P =3DI^2
> * R. V =3D I*R. So your power dissipation is over 3 times the power ratin=
g
> of your device.
> Thanks,
> rich!
>
> On 7/28/2014 12:34 AM, Neil wrote:
>> This is the first time I'm playing with motor control... using a
>> TLE5205-2 motor controller/driver chip to run a large throttle body, and
>> it's getting very hot.  I'm figuring there are a few reasons for this...
>>
>> (1) The throttle body is large -- drawing up to 4-5A continuous.
>>

--=20
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