MIC4421A Datasheet, PDF (11/13 Pages) Micrel Semiconductor – 9A Peak Low-Side MOSFET Driver Bipolar/CMOS/DMOS Process

Micrel, Inc.
P_T = Power dissipated in a driver when the output
changes states (“shoot-through current”) in
Watts. NOTE: The “shoot-through” current
from a dual transition (once up, once down)
for both drivers is stated in Figure 7 in
ampere-nanoseconds. This figure must be
multiplied by the number of repetitions per
second (frequency) to find Watts.
R_O = Output resistance of a driver in Ohms.
V_S = Power supply voltage to the IC in Volts.
+5.0V
0V _0.1µF
MIC4421A/4422A
+18V
WIMA
MK22
1µF
1
8
6, 7
MIC4421A
5
4
0.1µF
TEK Current
Probe 6302
+18V
0V
10,000pF
Polycarbonate
Figure 8. Peak Output Current Test Circuit
June 2007
11
M9999-062707