MIC44F18_11 Datasheet, PDF (10/17 Pages) Micrel Semiconductor – 6A, 13V High Speed MOSFET Drivers with Enable Input

Micrel, Inc.
Output Driver Section
A block diagram of the low-side driver is shown in Figure
3. Low driver impedances allow the external MOSFET to
be turned on and off quickly. The rail-to-rail drive
capability of the output ensures a low R_DSON from the
external MOSFET.
Redundant Vout pins lower the driver circuit impedance,
which helps increase the drive current and minimize LC
circuit ringing between the MOSFET gate and driver
output.
The slew rate of the output is non-adjustable and
depends only on the V_DD voltage and how much
capacitance is present at the VOUT pin. The slew rate
at the MOSFET gate can be adjusted by adding a
resistor between the MOSFET gate and the driver
output.
Figure 3. Output Driver Section
MIC44F18/19/20
February 2011
10
M9999-020111