High density drivers?

[dave94024]

I have an application that requires Totem pole type drivers to deliver
~1A for <1us. I need a lot of these setup in essentially a long chain
of H bridges into non-inductive loads. There is nearly no duty cycle
to speak of, each driver energized every few seconds or less (only
while in use).

I can of course do this with discretes but I have to make it as small
as practicable. I'll be driving these drivers with 5v logic from a
microcontroller. I need nearly a 100 of these high/low drivers and
have looked at various solutions. This is not for a long-term product
and I'm willing to exceed the rating of the parts in question (as long
as they'll survive for a few months of sporadic use, figure 1000
activations tops (for each driver)).

Any thoughts or suggestions?

Thanks,
Dave.

 

[John Larkin]

I have an application that requires Totem pole type drivers to deliver
~1A for <1us. I need a lot of these setup in essentially a long chain
of H bridges into non-inductive loads. There is nearly no duty cycle
to speak of, each driver energized every few seconds or less (only
while in use).

I can of course do this with discretes but I have to make it as small
as practicable. I'll be driving these drivers with 5v logic from a
microcontroller. I need nearly a 100 of these high/low drivers and
have looked at various solutions. This is not for a long-term product
and I'm willing to exceed the rating of the parts in question (as long
as they'll survive for a few months of sporadic use, figure 1000
activations tops (for each driver)).

Any thoughts or suggestions?

Thanks,
Dave.

How much output voltage? There are some SO-8 (or dip8) dual mosfet
gate drivers that might work.

What's the application?

John

 

[dave94024]

How much output voltage? There are some SO-8 (or dip8) dual mosfet

gate drivers that might work.

What's the application?

John- Hide quoted text -

The loads are 5-6 ohms each and there's one set of drivers on either
side, so we need whatever voltage is required to drive a little over 1
amp through the load (accounting for the RdsOn of the gates or the
diode drops of transistors (if we're using them)).

I was using some dual Mosfets up till now without any problems (in an
even smaller package actually), but I'm looking for something denser
if possible.

Dave.