Datasheet
MIC4416/7
DS20006077A-page 14 2018 Microchip Technology Inc.
FIGURE 5-5: MOSFET Capacitance
Effect at High Switching Frequency.
When the MOSFET is driven off, the slower rise occurs
because the MOSFET’s output capacitance recharges
through the load resistance (RC circuit). A lower load
resistance allows the output to rise faster. For the
fastest driver operation, choose the smallest power
MOSFET that will safely handle the desired voltage,
current, and safety margin. The smallest MOSFETs
generally have the lowest capacitance.
VS
CTL
G
GND
MIC4416
+4.5V to 18V
1
32
4
Logic
Input
+5V
Logic-Level
MOSFET
IRL3103*
* International Rectier
14m
:
, 30V MOSFET,
logic-level, V
GS
=
–
20V max.
4.7μF
0.1μF
Compare
47
:
, 5W
to
1k
:
, 1/4W
loads
G
D
S
Slower rise time
observed at
MOSFET’s drain