3 Apr
2010
3 Apr
'10
3:08 p.m.
On 3 Apr 2010 at 14:34, Brent Hilpert wrote:
Taking the lead from Steve's mention of Unitrode,
I scanned through
the one Unitrode book I have: "UNITRODE Switching Regulated Power
Supply Design Seminar Manual (1985)". Didn't find a direct ref or spec
for the PIC900, but some hints appear in a section on buck regulators:
"PIC600 and PIC800 series are power output stages for buck
regulators
which contain switching transistors and catch diodes."
"PIC910 is a complete buck regulator except for the filter
components (includes transistor, catch diode, and PWM control
circuit)."
The old UC1637 datasheet from Unitrode mentions a PIC900 as an H-
bridge driver. Spec sheets show it to be 80V, 5A, but that's it.
I'll have to check some of my older databooks to see if I can find
something.
The new UC1637 datasheet shows an L298 used instead.
--Chuck